The ITIS Logo The Search Results banner for the ITIS Data pages

Taxon author: Fernald

ITIS records citing taxon author "Fernald"
 
 Kingdom Animalia
  Achaetoneura fernaldi Williston in Forbush and Fernald, 1896 -- invalid
  Ammophila acuta (Fernald, 1934) -- valid
  Ammophila harti (Fernald, 1931) -- valid
  Ammophila leoparda (Fernald, 1934) -- valid
  Ammophila novita (Fernald, 1934) -- valid
  Ammophila parapolita (Fernald, 1934) -- valid
  Ammophila peckhami (Fernald, 1934) -- valid
  Chilo forbesellus Fernald -- valid
  Chlorion ashmeadi Fernald, 1906 -- invalid
  Chlorion auripes Fernald, 1906 -- invalid
  Chlorion bruneri Fernald, 1943 -- invalid
  Chlorion cubensis Fernald, 1906 -- invalid
  Chlorion davisi Fernald, 1907 -- invalid
  Chlorion flavitarsis Fernald, 1906 -- invalid
  Chlorion flavitarsis saussurei Fernald, 1906 -- invalid
  Chlorion harrisi Fernald, 1906 -- invalid
  Chlorion resinipes Fernald, 1906 -- invalid
  Chlorion simillimum Fernald, 1907 -- invalid
  Chloriontinae Fernald, 1905 -- valid
  Isodontia auripes (Fernald, 1906) -- valid
  Isodontia bruneri (Fernald, 1943) -- valid
  Isodontia cinerea Fernald, 1903 -- invalid
  Isodontia exornata Fernald, 1903 -- valid
  Isodontia macrocephala cinerea Fernald, 1903 -- invalid
  Munroessa nebulosalis (Fernald, 1887) -- valid
  Podalonia Fernald, 1927 -- valid
  Podalonia compacta Fernald, 1927 -- valid
  Podalonia violaceipennis compacta Fernald, 1927 -- invalid
  Prionyx simillimus (Fernald, 1907) -- valid
  Proterosphex Fernald, 1905 -- invalid
  Sphex aculeatus Fernald, 1934 -- invalid
  Sphex acutus Fernald, 1934 -- invalid
  Sphex arvensis floridensis Fernald, 1933 -- invalid
  Sphex ashmeadi (Fernald, 1906) -- valid
  Sphex bridwelli Fernald, 1903 -- invalid
  Sphex craspedotus Fernald, 1934 -- invalid
  Sphex cubensis (Fernald, 1906) -- valid
  Sphex dubius Fernald, 1934 -- invalid
  Sphex flavovestitus saussurei (Fernald, 1906) -- valid
  Sphex floridensis Fernald, 1934 -- invalid
  Sphex harti Fernald, 1931 -- invalid
  Sphex nigrocinctus Fernald, 1907 -- invalid
  Sphex novitus Fernald, 1934 -- invalid
  Sphex nudus Fernald, 1903 -- valid
  Sphex parapolitus Fernald, 1934 -- invalid
  Sphex peckhami Fernald, 1934 -- invalid
  Sphex pilosus Fernald, 1934 -- invalid
  Sphex resinipes (Fernald, 1906) -- valid
  Sphex transversus Fernald, 1934 -- invalid
  Sphex urnarius leopardus Fernald, 1934 -- invalid
  Sphex willistoni Fernald, 1934 -- invalid
 
 Kingdom Plantae
  Abies balsamea var. phanerolepis Fernald -- accepted
  Abies X phanerolepis (Fernald) T.S. Liu -- not accepted -- fir
  Acer barbatum var. longii (Fernald) Fernald -- not accepted
  Acer floridanum var. longii Fernald -- not accepted
  Acnida altissima var. prostrata (Uline & W.L. Bray) Fernald -- not accepted
  Acnida altissima var. subnuda (S. Watson) Fernald -- not accepted
  Aconitum uncinatum var. acutidens Fernald -- not accepted
  Adiantum capillus-veneris var. modestum (Underw.) Fernald -- not accepted
  Adiantum capillus-veneris var. protrusum Fernald -- not accepted
  Agalinis neoscotica (Greene) Fernald -- accepted -- Middleton false foxglove
  Agalinis pedicularia var. ambigens (Fernald) S.F. Blake -- not accepted
  Agastache scrophulariifolia var. mollis (Fernald) A. Heller -- not accepted
  Ageratina luciae-brauniae (Fernald) King & H. Rob. -- accepted -- Lucy Braun's snakeroot
  Agoseris gaspensis Fernald -- not accepted -- Gaspe Peninsula goat chicory
  Agrimonia striata var. campanulata Fernald -- not accepted
  Agropyron pungens var. acadiense (F.T. Hubb.) Fernald -- not accepted
  Agropyron repens f. heberhachis Fernald -- not accepted
  Agropyron repens f. pilosum (Scribn.) Fernald -- not accepted
  Agropyron repens f. setiferum Fernald -- not accepted
  Agropyron repens f. vaillantianum (Wulfen & Schreb.) Fernald -- not accepted
  Agropyron trachycaulum var. majus (Vasey) Fernald -- not accepted
  Agropyron trachycaulum var. novae-angliae (Scribn.) Fernald -- not accepted
  Agrostis alba f. aristata (Fernald) Fernald -- not accepted
  Agrostis alba f. aristigera (Fernald) Fernald -- not accepted
  Agrostis borealis f. macrantha (Eames) Fernald -- not accepted
  Agrostis borealis var. americana (Scribner ex Macoun) Fernald -- not accepted
  Agrostis borealis var. paludosa (Scribn.) Fernald -- not accepted
  Agrostis borealis var. typica Fernald -- not accepted
  Agrostis geminata f. exaristata Fernald -- not accepted
  Agrostis hyemalis f. exaristata (Fernald) Scoggan -- not accepted
  Agrostis hyemalis f. tuckermanii (Fernald) Scoggan -- not accepted
  Agrostis hyemalis var. elata (Pursh) Fernald -- not accepted
  Agrostis perennans f. atherophora Fernald -- not accepted
  Agrostis perennans f. chaotophora Fernald -- not accepted
  Agrostis scabra f. exaristata (Fernald) Hultén -- not accepted
  Agrostis scabra f. setigera Fernald -- not accepted
  Agrostis scabra f. tuckermanii Fernald -- not accepted
  Agrostis scabra ssp. septentrionalis (Fernald) Á. Löve & D. Löve -- not accepted
  Agrostis scabra var. montana (Torr.) Fernald -- not accepted
  Agrostis scabra var. septentrionalis Fernald -- not accepted -- rough bentgrass
  Agrostis stolonifera f. aristigera Fernald -- not accepted
  Alchemilla vulgaris var. comosa (Brenner) Fernald & Wiegand -- not accepted
  Alchemilla vulgaris var. filicaulis (Buser) Fernald & Wiegand -- not accepted
  Alchemilla vulgaris var. vestita (Buser) Fernald & Wiegand -- not accepted
  Allium acuminatum var. cuspidatum Fernald -- not accepted
  Allium schoenoprasum var. laurentianum Fernald -- not accepted
  Alnus crispa var. mollis (Fernald) Fernald -- not accepted
  Alnus rugosa var. americana (Regel) Fernald -- not accepted
  Alnus serrulata var. subelliptica Fernald -- not accepted
  Alopecurus aequalis var. natans (Wahlenb.) Fernald -- not accepted
  Alsine bongardiana (Fernald) Davidson & Moxley -- not accepted
  Amaranthus albus var. pubescens (Uline & W.L. Bray) Fernald -- not accepted
  Amelanchier alnifolia var. cusickii (Fernald) C.L. Hitchc. -- not accepted -- Cusick's serviceberry
  Amelanchier arborea (F. Michx.) Fernald -- accepted -- Allegheny serviceberry, apple shadbush, common serviceberry, downy serviceberry, shadblow
  Amelanchier arborea var. arborea (F. Michx.) Fernald -- not accepted -- common serviceberry
  Amelanchier canadensis var. subintegra Fernald -- not accepted
  Amelanchier cusickii Fernald -- accepted -- Cusick's serviceberry
  Amelanchier florida var. cusickii (Fernald) M. Peck -- not accepted
  Amelanchier gaspensis (Wiegand) Fernald & Weath. -- accepted -- Gaspé serviceberry
  Amelanchier laevis var. nitida (Wiegand) Fernald -- not accepted
  Amelanchier lucida Fernald -- not accepted
  Ammannia teres var. exauriculata (Fernald) Fernald -- not accepted
  Ammophila arenaria var. breviligulata (Fernald) S.G. Archer & C.E. Bunch -- not accepted
  Ammophila breviligulata Fernald -- accepted -- American beachgrass
  Amphicarpa bracteata (L.) Fernald -- not accepted
  Amphicarpaea bracteata (L.) Fernald -- accepted -- American hogpeanut, hog-peanut
  Amphicarpaea bracteata var. bracteata (L.) Fernald -- accepted -- American hogpeanut
  Amphicarpaea bracteata var. comosa (L.) Fernald -- accepted -- American hogpeanut
  Andromeda glaucophylla var. iodandra Fernald -- not accepted
  Andropogon elliottii var. projectus Fernald & Griscom -- not accepted
  Andropogon gerardii var. paucipilus (Nash) Fernald -- not accepted
  Andropogon praematurus Fernald -- not accepted
  Andropogon praematurus f. hirtivaginatus Fernald -- not accepted
  Andropogon praematurus f. praematurus Fernald -- not accepted
  Andropogon preamaturus Fernald -- not accepted
  Andropogon preamaturus f. hirtivaginatus Fernald -- not accepted
  Andropogon provincialis var. paucipilus (Nash) Fernald & Griscom -- not accepted
  Andropogon scoparius f. calvescens Fernald -- not accepted
  Andropogon scoparius var. ducis Fernald & Griscom -- not accepted
  Andropogon scoparius var. genuinus Fernald & Griscom -- not accepted
  Andropogon scoparius var. septentrionalis Fernald & Griscom -- not accepted
  Andropogon ternarius var. cabanisii (Hack.) Fernald & Griscom -- not accepted -- splitbeard bluestem
  Andropogon ternarius var. glaucescens (Scribn.) Fernald & Griscom -- not accepted
  Andropogon virginicus f. hirsutior (Hack.) Fernald & Griscom -- not accepted
  Andropogon virginicus f. tenuispatheus (Nash) Fernald & Griscom -- not accepted
  Andropogon virginicus var. abbreviatus (Hack.) Fernald & Griscom -- not accepted
  Andropogon virginicus var. corymbosus (Chapm. ex Hack.) Fernald & Griscom -- not accepted
  Andropogon virginicus var. genuinus Fernald & Griscom -- not accepted
  Andropogon virginicus var. stenophyllus (Hack.) Fernald & Griscom -- not accepted
  Andropogon virginicus var. tenuispatheus (Nash) Fernald & Griscom -- not accepted
  Anemone multifida var. richardsiana Fernald -- not accepted -- Richards' anemone
  Anemone quinquefolia var. interior Fernald -- not accepted
  Anemone riparia Fernald -- not accepted
  Anemone virginiana var. riparia (Fernald) B. Boivin -- not accepted -- riparian thimbleweed
  Angelica laurentiana Fernald -- accepted -- angélique du Saint-Laurent, St. Lawrence angelica, st. lawrence angelica
  Angelica venenosa (Greenway) Fernald -- accepted -- hairy angelica, venous angelica
  Antennaria affinis Fernald -- not accepted
  Antennaria albicans Fernald -- not accepted
  Antennaria alpina var. megacephala (Fernald) Hultén -- not accepted
  Antennaria alpina var. megacephala (Fernald) S.L. Welsh -- not accepted
  Antennaria alpina var. ungavensis Fernald -- not accepted
  Antennaria ambigens (Greene) Fernald -- not accepted
  Antennaria appendiculata Fernald -- not accepted
  Antennaria atriceps Fernald -- not accepted
  Antennaria bayardii Fernald -- not accepted
  Antennaria brevistyla Fernald -- not accepted
  Antennaria brunnescens Fernald -- not accepted
  Antennaria cana (Fernald & Wiegand) Fernald -- not accepted
  Antennaria columnaris Fernald -- not accepted
  Antennaria confusa Fernald -- not accepted
  Antennaria eucosma Fernald & Wiegand -- not accepted -- Newfoundland pussytoes
  Antennaria fallax var. calophylla (Greene) Fernald -- not accepted
  Antennaria foggii Fernald -- not accepted
  Antennaria friesiana var. megacephala (Fernald) Hultén -- not accepted
  Antennaria gaspensis (Fernald) Fernald -- not accepted
  Antennaria grandis (Fernald) House -- not accepted
  Antennaria howellii ssp. gaspensis (Fernald) Chmiel. -- not accepted
  Antennaria howellii ssp. petaloidea (Fernald) Bayer -- accepted -- small pussytoes
  Antennaria longii Fernald -- not accepted
  Antennaria megacephala Fernald -- not accepted
  Antennaria munda Fernald -- not accepted
  Antennaria neglecta var. attenuata (Fernald) Cronquist -- not accepted
  Antennaria neglecta var. gaspensis (Fernald) Cronquist -- not accepted
  Antennaria neglecta var. petaloidea (Fernald) Cronquist -- not accepted
  Antennaria neglecta var. randii (Fernald) Cronquist -- not accepted
  Antennaria neodioica ssp. petaloidea (Fernald) Bayer & Stebbins -- not accepted
  Antennaria neodioica var. attenuata Fernald -- not accepted
  Antennaria neodioica var. chlorophylla Fernald -- not accepted
  Antennaria neodioica var. gaspensis Fernald -- not accepted
  Antennaria neodioica var. grandis Fernald -- not accepted
  Antennaria neodioica var. interjecta Fernald -- not accepted
  Antennaria neodioica var. intertjecta Fernald -- not accepted
  Antennaria neodioica var. petaloidea Fernald -- not accepted
  Antennaria neodioica var. randii (Fernald) B. Boivin -- not accepted
  Antennaria neodioica var. rupicola (Fernald) Fernald -- not accepted
  Antennaria parlinii Fernald -- accepted -- Parlin's pussytoes
  Antennaria parlinii ssp. parlinii Fernald -- accepted -- Parlin's pussytoes
  Antennaria parlinii var. arnoglossa (Greene) Fernald -- not accepted
  Antennaria peasei Fernald -- not accepted
  Antennaria petaloidea (Fernald) Fernald -- not accepted
  Antennaria petaloidea var. scariosa Fernald -- not accepted
  Antennaria petaloidea var. subcorymbosa (Fernald) Fernald -- not accepted
  Antennaria petiolata Fernald -- not accepted
  Antennaria plantaginifolia var. parlinii (Fernald) Cronquist -- not accepted
  Antennaria plantaginifolia var. petiolata (Fernald) A. Heller -- not accepted
  Antennaria pulcherrima ssp. eucosma (Fernald & Wiegand) R.J. Bayer -- accepted -- elegant pussy-toes
  Antennaria pygmaea Fernald -- not accepted
  Antennaria randii Fernald -- not accepted
  Antennaria rhodantha Fernald -- not accepted
  Antennaria rupicola Fernald -- not accepted
  Antennaria sornborgeri Fernald -- not accepted
  Antennaria spathulata (Fernald) Fernald -- not accepted
  Antennaria straminea Fernald -- not accepted
  Antennaria subviscosa Fernald -- not accepted
  Antennaria ungavensis (Fernald) Malte -- not accepted
  Antennaria vexillifera Fernald -- not accepted
  Antennaria wiegandii Fernald -- not accepted
  Apios americana var. turrigera Fernald -- not accepted
  Apocynum cannabinum var. nemorale (G.S. Mill.) Fernald -- not accepted
  Apocynum sibiricum var. cordigerum (Greene) Fernald -- not accepted
  Apocynum sibiricum var. salignum (Greene) Fernald -- not accepted
  Arabis collinsii Fernald -- not accepted
  Arabis drummondii var. connexa (Greene) Fernald -- not accepted
  Arabis holboellii var. collinsii (Fernald) Rollins -- not accepted -- arabette de Holboell variété de Collins, Collins' rockcress, Holboell's rockcress
  Arabis perstellata var. phalacrocarpa (M. Hopkins) Fernald -- not accepted
  Arabis perstellata var. shortii Fernald -- not accepted
  Arabis retrofracta var. collinsii (Fernald) B. Boivin -- not accepted
  Arabis shortii (Fernald) Gleason -- not accepted -- Short's rockcress
  Arctostaphylos adenotricha (Fernald & J.F. Macbr.) A. Löve & D. Löve & Kapoor -- not accepted
  Arctostaphylos rubra (Rehder & Wilson) Fernald -- not accepted -- busserole rouge, red fruit bearberry, red manzanita
  Arctostaphylos uva-ursi ssp. adenotricha (Fernald & J.F. Macbr.) Calder & Roy L. Taylor -- not accepted
  Arctostaphylos uva-ursi ssp. coactilis (Fernald & J.F. Macbr.) A. Löve & D. Löve & Kapoor -- not accepted
  Arctostaphylos uva-ursi var. adenotricha Fernald & J.F. Macbr. -- not accepted
  Arctostaphylos uva-ursi var. coactilis Fernald & J.F. Macbr. -- not accepted
  Arenaria cylindrocarpa Fernald -- not accepted
  Arenaria groenlandica var. glabra (Michx.) Fernald -- not accepted
  Arenaria laricifolia var. marcescens (Fernald) B. Boivin -- not accepted
  Arenaria litorea Fernald -- not accepted
  Arenaria marcescens Fernald -- not accepted
  Arenaria obtusiloba (Rydb.) Fernald -- not accepted
  Arenaria peploides var. maxima Fernald -- not accepted
  Arenaria peploides var. robusta Fernald -- not accepted
  Arenaria stricta var. litorea (Fernald) B. Boivin -- not accepted
  Arenaria verna var. propinqua (Richardson) Fernald -- not accepted
  Aristida lanosa var. macera Fernald & Griscom -- not accepted
  Aristida longespica var. geniculata (Raf.) Fernald -- accepted
  Aristida longispica var. geniculata (Raf.) Fernald -- not accepted -- red threeawn, slimspike threeawn
  Arnica alpina ssp. sornborgeri (Fernald) Maguire -- not accepted
  Arnica alpina var. angustifolia (Vahl) Fernald -- not accepted
  Arnica chionopappa Fernald -- not accepted
  Arnica cordifolia var. whitneyi (Fernald) Maguire -- not accepted
  Arnica frigida ssp. griscomii (Fernald) S.R. Downie -- not accepted -- Griscom's arnica
  Arnica gaspensis Fernald -- not accepted
  Arnica griscomii Fernald -- accepted
  Arnica griscomii ssp. griscomii Fernald -- accepted
  Arnica lonchophylla ssp. chionopappa (Fernald) Maguire -- not accepted
  Arnica louiseana ssp. griscomii (Fernald) Maguire -- not accepted
  Arnica louiseana var. griscomii (Fernald) Boivin -- not accepted
  Arnica mollis var. petiolaris Fernald -- not accepted
  Arnica sornborgeri Fernald -- not accepted
  Arnica terrae-novae Fernald -- not accepted
  Arnica whitneyi Fernald -- not accepted
  Arnoglossum sulcatum (Fernald) H. Rob. -- accepted -- Georgia Indian plaintain, Georgia Indian plantain
  Artemisia borealis var. latisecta Fernald -- not accepted
  Artemisia glauca var. dracunculina (S. Watson) Fernald -- not accepted
  Artemisia glauca var. dracunculus (S. Watson) Fernald -- not accepted
  Artemisia ludoviciana var. americana (Besser) Fernald -- not accepted
  Artemisia ludoviciana var. brittonii (Rydb.) Fernald -- not accepted
  Artemisia ludoviciana var. pabularis (A. Nelson) Fernald -- not accepted
  Aruncus allegheniensis var. pubescens (Rydb.) Fernald -- not accepted
  Aruncus dioicus (Walter) Fernald -- accepted -- bride's feathers, goatsbeard
  Aruncus dioicus var. dioicus (Walter) Fernald -- accepted -- bride's feathers
  Aruncus dioicus var. pubescens (Rydb.) Fernald -- accepted -- bride's feathers
  Asarum hypericoides var. multicaule (Michx. ex Willd.) Fernald -- not accepted
  Asarum lewisii Fernald -- not accepted
  Asclepias incarnata var. neoscotica Fernald -- not accepted
  Asclepias lanceolata var. paupercula (Michx.) Fernald -- not accepted
  Asclepias viridiflora var. linearis (A. Gray) Fernald -- not accepted
  Ascyrum hypericoides var. multicaule (Michx. ex Willd.) Fernald -- not accepted
  Ascyrum hypericoides var. oblongifolium (Spach) Fernald -- not accepted
  Asperella hystrix var. bigeloviana Fernald -- not accepted
  Asplenium cryptolepis Fernald -- not accepted
  Asplenium cryptolepis var. ohionis Fernald -- not accepted
  Asplenium platyneuron var. bacculum-rubrum (Featherm.) Fernald -- not accepted -- ebony spleenwort
  Asplenium ruta-muraria var. cryptolepis (Fernald) Wherry -- not accepted -- wallrue
  Asplenium ruta-muraria var. ohionis (Fernald) Wherry -- not accepted
  Asplenium scolopendrium var. americanum (Fernald) Kartesz & Gandhi -- accepted -- American hart's-tongue fern, Hart's tonguefern
  Aster acuminatus var. magdalenensis Fernald -- not accepted
  Aster anticostensis Fernald -- not accepted -- aster d'Anticosti
  Aster azureus var. poaceus (E.S. Burgess) Fernald -- not accepted
  Aster ciliolatus var. comatus (Fernald) A.G. Jones -- not accepted -- Lindley's aster
  Aster compactus Fernald -- not accepted
  Aster cordifolius var. furbishiae Fernald -- not accepted -- Furbish's wood aster
  Aster cordifolius var. racemiflorus Fernald -- not accepted -- raceme wood aster
  Aster crenifolius (Fernald) Cronquist -- not accepted
  Aster crenifolius var. arcuans (Fernald) Cronquist -- not accepted
  Aster depauperatus Fernald -- not accepted -- serpentine aster
  Aster depauperatus var. parviceps (Burgess) Fernald -- not accepted
  Aster dumosus var. dodgei Fernald -- not accepted -- Dodge's aster
  Aster foliaceus var. arcuans Fernald -- not accepted
  Aster foliaceus var. subgeminatus Fernald -- not accepted
  Aster foliaceus var. subpetiolatus Fernald -- not accepted
  Aster hendersonii Fernald -- not accepted -- Lyall aster
  Aster johannensis Fernald -- not accepted
  Aster johannensis var. villicaulis (A. Gray) Fernald -- not accepted
  Aster laurentianus Fernald -- not accepted -- aster du Saint-Laurent, rayless alkali aster
  Aster laurentianus var. contiguus Fernald -- not accepted
  Aster laurentianus var. laurentianus Fernald -- not accepted
  Aster laurentianus var. magdalenensis Fernald -- not accepted
  Aster linariifolius var. victorinii Fernald -- not accepted
  Aster macrophyllus var. ianthinus (E.S. Burgess) Fernald -- not accepted -- bigleaf aster
  Aster multiflorus var. exiguus Fernald -- not accepted
  Aster novi-belgii ssp. johannensis (Fernald) A.G. Jones -- not accepted
  Aster novi-belgii var. crenifolius (Fernald) Labrecque & Brouillet -- not accepted
  Aster novi-belgii var. johannensis (Fernald) A.G. Jones -- not accepted -- Johann's aster
  Aster oolentangiensis var. laevicaulis (Fernald) A.G. Jones -- not accepted -- skyblue aster
  Aster puniceus var. compactus Fernald -- not accepted
  Aster puniceus var. oligocephalus Fernald -- not accepted
  Aster puniceus var. perlongus Fernald -- not accepted -- purplestem aster
  Aster saxatilis (Fernald) Blanch. -- not accepted
  Aster spectabilis var. suffultus Fernald -- not accepted -- western showy aster
  Aster subgeminatus (Fernald) Boivin -- not accepted -- aster
  Aster subulatus var. euroauster Fernald & Grisc. -- not accepted -- annual saltmarsh aster
  Aster subulatus var. obtusifolius Fernald -- not accepted -- annual saltmarsh aster
  Aster tardiflorus var. vestitus Fernald -- not accepted
  Aster tradescantii var. saxatilis (Fernald) House -- not accepted
  Aster umbellatus var. brevisquamis Fernald -- not accepted
  Aster vimineus var. saxatilis Fernald -- not accepted
  Astragalus alpinus var. brunetianus Fernald -- accepted -- alpine milkvetch
  Astragalus alpinus var. labradoricus (DC.) Fernald -- not accepted
  Astragalus eucosmus var. facinorum Fernald -- not accepted
  Astragalus frigidus var. gaspensis (J. Rousseau) Fernald -- not accepted
  Astragalus mexicanus var. trichocalyx (Nutt. ex Torr. & A. Gray) Fernald -- not accepted
  Astragalus scrupulicola Fernald & Weath. -- not accepted
  Astragalus stragulus Fernald -- not accepted
  Athyrium alpestre var. gaspense Fernald -- not accepted
  Aureolaria pedicularia ssp. ambigens (Fernald) Pennell -- not accepted
  Aureolaria pedicularia var. ambigens (Fernald) Farw. -- not accepted -- fernleaf yellow false foxglove
  Avena striata f. albicans Fernald -- not accepted
  Bacopa acuminata var. microphylla (Raf.) Fernald -- not accepted
  Bacopa cyclophylla Fernald -- not accepted
  Bacopa simulans Fernald -- not accepted -- Chickahominy water-hyssop
  Bacopa stragula Fernald -- not accepted -- mat-forming water-hyssop
  Baeothryon verecundum (Fernald) Á. Löve & D. Löve -- not accepted
  Baptisia australis var. minor (Lehm.) Fernald -- accepted -- blue wild indigo
  Baptisia cinerea (Raf.) Fernald & B.G. Schub. -- accepted -- grayhairy wild indigo
  Baptisia tinctoria var. crebra Fernald -- not accepted
  Baptisia tinctoria var. projecta Fernald -- not accepted
  Barbarea orthoceras var. dolichocarpa Fernald -- not accepted
  Bartonia paniculata var. intermedia Fernald -- not accepted
  Bartonia paniculata var. iodandra (B.L. Rob.) Fernald -- not accepted
  Bartonia paniculata var. sabulonensis (Fernald) Fernald -- not accepted
  Bartonia virginica var. sabulonensis (Fernald) B. Boivin -- not accepted
  Beckmannia syzigachne (Steud.) Fernald -- accepted -- American sloughgrass, slough grass
  Beckmannia syzigachne ssp. syzigachne (Steud.) Fernald -- accepted
  Beckmannia syzigachne var. syzigachne (Steud.) Fernald -- not accepted
  Berula pusilla Fernald -- not accepted
  Betula alleghaniensis var. macrolepis (Fernald) Brayshaw -- not accepted -- yellow birch
  Betula lutea var. macrolepis Fernald -- not accepted
  Betula minor (Tuck.) Fernald -- accepted -- dwarf white birch
  Betula nana var. renifolia (Fernald) B. Boivin -- not accepted
  Betula occidentalis var. fecunda Fernald -- not accepted
  Betula papyrifera var. commutata (Regel) Fernald -- not accepted -- western paper birch
  Betula papyrifera var. cordifolia (Regel) Fernald -- not accepted -- mountain paper birch, paper birch
  Betula papyrifera var. elobata (Fernald) Sarg. -- not accepted
  Betula papyrifera var. humilis (Regel) Fernald & Raup -- not accepted
  Betula papyrifera var. macrostachya Fernald -- not accepted
  Betula papyrifera var. pensilis Fernald -- not accepted
  Betula pumila var. renifolia Fernald -- not accepted -- bog birch
  Betula terrae-novae Fernald -- not accepted
  Betula uber (Ashe) Fernald -- accepted -- Virginia birch, Virginia round-leaf birch, Virginia roundleaf birch
  Bidens aristosa var. fritcheyi Fernald -- not accepted
  Bidens cernua var. oligodonta Fernald & H. St. John -- not accepted
  Bidens connata var. gracilipes Fernald -- not accepted
  Bidens connata var. inundata Fernald -- not accepted
  Bidens coronata var. brachyodonta Fernald -- not accepted
  Bidens coronata var. trichosperma (Michx.) Fernald -- not accepted
  Bidens eatonii Fernald -- accepted -- bident d'Eaton, Eaton's beggar-ticks, Eaton's beggarticks
  Bidens eatonii var. fallax Fernald -- not accepted
  Bidens eatonii var. kennebecensis Fernald -- not accepted
  Bidens frondosa var. anomala Porter ex Fernald -- not accepted
  Bidens frondosa var. stenodonta Fernald & H. St. John -- not accepted
  Bidens heterodoxa (Fernald) Fernald & H. St. John -- accepted -- bident différent, Connecticut beggar-ticks, Connecticut beggarticks
  Bidens heterodoxa var. agnostica Fernald -- not accepted -- Connecticut beggarticks
  Bidens heterodoxa var. atheistica Fernald -- not accepted -- Connecticut beggarticks
  Bidens heterodoxa var. heterodoxa (Fernald) Fernald & St. John -- not accepted -- Connecticut beggarticks
  Bidens heterodoxa var. monardifolia Fernald -- not accepted -- Connecticut beggarticks
  Bidens heterodoxa var. orthodoxa Fernald & H. St. John -- not accepted -- Connecticut beggarticks
  Bidens hyperborea var. cathancensis Fernald -- not accepted
  Bidens hyperborea var. colpophila (Fernald & H. St. John) Fernald -- not accepted
  Bidens infirma Fernald -- not accepted
  Bidens tripartita var. heterodoxa Fernald -- not accepted
  Bilderdykia cilinodis var. laevigata (Fernald) C.F. Reed -- not accepted
  Blephilia hirsuta var. glabrata Fernald -- accepted -- hairy pagoda-plant
  Boechera collinsii (Fernald) Á. Löve & D. Löve -- accepted -- Collins' rockcress
  Boechera holboellii var. collinsii (Fernald) Dorn -- not accepted
  Boechera shortii (Fernald) Al-Shehbaz -- not accepted -- Short's rockcress
  Boltonia asteroides var. decurrens (Torr. & A. Gray) Fernald -- not accepted
  Boltonia asteroides var. glastifolia (Hill) Fernald -- not accepted
  Boltonia asteroides var. recognita (Fernald & Grisc.) Cronquist -- accepted -- white doll's daisy, white doll's-daisy
  Boltonia caroliniana (Walter) Fernald -- accepted -- Carolina doll's daisy
  Boltonia diffusa var. interior Fernald & Grisc. -- accepted -- smallhead doll's daisy
  Boltonia interior (Fernald & Grisc.) G.N. Jones -- not accepted
  Boltonia latisquama var. decurrens (Torr. & A. Gray) Fernald & Grisc. -- not accepted
  Boltonia latisquama var. microcephala Fernald & Grisc. -- not accepted
  Boltonia latisquama var. recognita Fernald & Grisc. -- not accepted
  Boltonia ravenelii Fernald & Grisc. -- not accepted
  Boltonia recognita (Fernald & Grisc.) G.N. Jones -- not accepted
  Bonamia michauxii (Fernald & B.G. Schub.) K.A. Wilson -- not accepted
  Botrychium angustisegmentum (Pease & A.H. Moore) Fernald -- not accepted
  Botrychium simplex var. laxifolium (R.T. Clausen) Fernald -- not accepted -- little grapefern
  Brachyactis ciliata ssp. laurentiana (Fernald) A.G. Jones -- not accepted -- alkali rayless aster
  Braya americana (Hook.) Fernald -- not accepted
  Braya humilis var. leiocarpa (Trautv.) Fernald -- not accepted
  Braya humilis var. novae-angliae (Rydb.) Fernald -- not accepted
  Braya longii Fernald -- accepted -- Long's northern rockcress
  Braya purpurascens var. longii (Fernald) B. Boivin -- not accepted
  Braya richardsonii (Rydb.) Fernald -- not accepted
  Breweria michauxii Fernald & B.G. Schub. -- not accepted
  Breweria pickeringii var. caesariensis Fernald & B.G. Schub. -- not accepted
  Breweria pickeringii var. pattersonii Fernald & B.G. Schub. -- not accepted
  Bromopsis nottowayana (Fernald) Holub -- not accepted
  Bromus ciliatus f. intonsus (Fernald) F. Seym. -- not accepted
  Bromus ciliatus var. denudatus (Wiegand) Fernald -- not accepted
  Bromus ciliatus var. intonsus Fernald -- not accepted
  Bromus dudleyi Fernald -- not accepted
  Bromus inermis f. aristatus (Schur) Fernald -- not accepted
  Bromus inermis f. villosus (Mert. & Koch) Fernald -- not accepted
  Bromus inermis var. aristatus (Schur) Fernald -- not accepted
  Bromus latiglumis f. incanus (Shear) Fernald -- accepted
  Bromus nottowayanus Fernald -- accepted -- Nottoway Valley brome
  Bulbostylis antillana (Britton) Fernald -- not accepted
  Bulbostylis capillaris var. crebra Fernald -- not accepted
  Bulbostylis capillaris var. isopoda Fernald -- not accepted
  Bulbostylis ciliatifolia (Elliott) Fernald -- accepted -- capillary hairsedge
  Bulbostylis ciliatifolia var. ciliatifolia (Elliott) Fernald -- accepted -- capillary hairsedge
  Bulbostylis coarctata (Elliott) Fernald -- not accepted
  Bumelia lycioides var. virginiana Fernald -- not accepted
  Cacalia muehlenbergii (Sch. Bip.) Fernald -- not accepted
  Cacalia muhlenbergii (Sch. Bip.) Fernald -- not accepted
  Cacalia sulcata Fernald -- not accepted
  Cakile edentula ssp. edentula var. lacustris Fernald -- not accepted -- American searocket
  Cakile edentula ssp. lacustris (Fernald) Hultén -- not accepted
  Cakile edentula var. californica (A. Heller) Fernald -- not accepted
  Cakile edentula var. lacustris Fernald -- accepted -- American searocket
  Cakile lacustris (Fernald) Pobed. -- not accepted
  Calamagrostis arenicola Fernald -- not accepted
  Calamagrostis pickeringii var. debilis (Kearney) Fernald & Wiegand -- not accepted
  Calamovilfa brevipilis var. calvipes Fernald -- not accepted
  Calamovilfa brevipilis var. heterolepis Fernald -- not accepted
  Calamovilfa brevipilis var. typica Fernald -- not accepted
  Callirhoe bushii Fernald -- accepted -- bush poppymallow, Bush's poppymallow
  Callirhoe involucrata var. bushii (Fernald) R.F. Martin -- not accepted
  Callirhoe papaver var. bushii (Fernald) Waterf. -- not accepted
  Callitriche anceps Fernald -- not accepted
  Calopogon pulchellus var. latifolius (H. St. John) Fernald -- not accepted
  Cardamine longii Fernald -- accepted -- Long's bittercress
  Carex abscondita var. glauca (Chapm.) Fernald -- not accepted
  Carex abscondita var. rostellata Fernald -- not accepted
  Carex absconditiformis Fernald -- not accepted
  Carex aenea Fernald -- not accepted -- bronze sedge
  Carex amphibola var. rigida (L.H. Bailey) Fernald -- not accepted -- eastern narrowleaf sedge
  Carex amphibola var. turgida Fernald -- not accepted -- eastern narrowleaf sedge
  Carex amphigena (Fernald) Mack. -- not accepted
  Carex aquatilis var. altior (Rydb.) Fernald -- not accepted
  Carex bayardii Fernald -- not accepted
  Carex bebbii Olney ex Fernald -- accepted -- Bebb sedge, Bebb's sedge
  Carex bipartita var. amphigena (Fernald) Polunin -- not accepted
  Carex canescens ssp. disjuncta (Fernald) Toivonen -- accepted -- silvery sedge
  Carex canescens var. disjuncta Fernald -- not accepted
  Carex capillaris var. elongata Olney ex Fernald -- not accepted
  Carex corrugata Fernald -- accepted -- prune-fruit sedge
  Carex crawfordii Fernald -- accepted -- Crawford's sedge
  Carex crawfordii var. vigens Fernald -- not accepted
  Carex crinita var. brevicrinis Fernald -- accepted -- fringed sedge
  Carex crinita var. porteri (Olney) Fernald -- accepted -- Porter's fringed sedge
  Carex crinita var. simulans Fernald -- not accepted
  Carex cumulata (L.H. Bailey) Fernald -- accepted -- clustered sedge
  Carex debilis var. intercursa Fernald -- accepted -- white edge sedge
  Carex deweyana var. collectanea Fernald -- accepted -- roundfruit sedge
  Carex digitalis var. asymmetrica Fernald -- not accepted
  Carex digitalis var. macropoda Fernald -- accepted
  Carex elachycarpa Fernald -- not accepted -- Aroostook sedge
  Carex festucacea var. brevior (Dewey) Fernald -- not accepted
  Carex flava var. gaspensis Fernald -- not accepted
  Carex franklinii var. misandroides (Fernald) Raymond -- not accepted
  Carex garberi Fernald -- accepted -- elk sedge, Garber's sedge
  Carex garberi ssp. bifaria (Fernald) Hultén -- not accepted
  Carex garberi var. bifaria Fernald -- not accepted
  Carex glacialis var. terrae-novae (Fernald) B. Boivin -- not accepted
  Carex glareosa ssp. glareosa var. amphigena Fernald -- not accepted -- lesser saltmarsh sedge
  Carex glareosa var. amphigena Fernald -- not accepted -- lesser saltmarsh sedge
  Carex gracillima var. macerrima Fernald & Wiegand -- not accepted
  Carex harperi Fernald -- not accepted
  Carex hormathodes Fernald -- accepted -- marsh straw sedge
  Carex hostiana var. laurentiana Fernald & Wiegand -- not accepted
  Carex howei var. capillacea (L.H. Bailey) Fernald -- not accepted
  Carex josselynii (Fernald) Mack. ex Pease -- not accepted -- Josselyn's sedge
  Carex katahdinensis Fernald -- not accepted
  Carex lanuginosa var. americana (Fernald) B. Boivin -- not accepted
  Carex lasiocarpa ssp. americana (Fernald) D. Löve & J.-P.Bernard -- not accepted
  Carex lasiocarpa var. americana Fernald -- not accepted -- American woollyfruit sedge, woolly-fruit sedge
  Carex laxiculmis var. copulata (L.H. Bailey) Fernald -- accepted -- spreading sedge
  Carex lenticularis var. eucycla Fernald & Wiegand -- not accepted
  Carex leptalea ssp. harperi (Fernald) W. Stone -- not accepted -- Harper's sedge
  Carex leptalea var. harperi (Fernald) Weath. & Griscom -- not accepted
  Carex leptonervia (Fernald) Fernald -- accepted -- nerveless woodland sedge
  Carex livida var. grayana (Dewey) Fernald -- not accepted
  Carex livida var. rufiniformis Fernald -- not accepted -- livid sedge
  Carex maritima var. setina (Christ) Fernald -- not accepted
  Carex media var. stevenii (T. Holm) Fernald -- not accepted
  Carex misandroides Fernald -- not accepted -- manhater sedge
  Carex nigra var. strictiformis (L.H. Bailey) Fernald -- not accepted
  Carex oederi var. subglosa Fernald -- not accepted
  Carex ormantha (Fernald) Mack. -- not accepted
  Carex oronensis Fernald -- accepted -- Orono sedge
  Carex paleacea var. transatlantica Fernald -- not accepted
  Carex pallescens var. neogaea Fernald -- not accepted
  Carex paupercula var. brevisquama Fernald -- not accepted
  Carex paupercula var. irrigua (Wahlenb.) Fernald -- not accepted
  Carex paupercula var. pallens Fernald -- not accepted
  Carex pensylvanica var. lucorum (Willd. ex Link) Fernald -- not accepted
  Carex petricosa var. misandroides (Fernald) B. Boivin -- accepted
  Carex phyllomanica var. ormantha (Fernald) B. Boivin -- not accepted
  Carex retroflexa var. texensis (Torr.) Fernald -- not accepted
  Carex rhomalea (Fernald) Mack. -- not accepted
  Carex richii (Fernald) Mack. -- not accepted
  Carex rostrata var. ambigens Fernald -- not accepted
  Carex rostrata var. anticostensis Fernald -- not accepted
  Carex rugosperma var. tonsa (Fernald) E.G. Voss -- not accepted
  Carex saxatilis var. rhomalea Fernald -- not accepted
  Carex scoparia var. condensa Fernald -- not accepted
  Carex scoparia var. tessellata Fernald & Wiegand -- not accepted -- broom sedge
  Carex setacea var. ambigua (Barratt) Fernald -- not accepted
  Carex stylosa var. nigritella (Drejer) Fernald -- not accepted
  Carex swanii (Fernald) Mack. -- accepted -- carex de Swan, swan sedge, Swan's sedge
  Carex tenera var. echinodes (Fernald) Wiegand -- accepted -- quill sedge
  Carex terrae-novae Fernald -- not accepted -- Newfoundland sedge
  Carex tincta (Fernald) Fernald -- accepted -- tinged sedge
  Carex tonsa (Fernald) E.P. Bicknell -- accepted -- shaved sedge
  Carex tonsa var. tonsa (Fernald) E.P. Bicknell -- accepted -- shaved sedge
  Carex umbellata var. tonsa Fernald -- not accepted
  Carex vahlii var. inferalpina (Wahlenb.) Fernald -- not accepted
  Carex vesicaria var. jejuna Fernald -- not accepted -- blister sedge
  Carex vesicaria var. laurentiana Fernald -- not accepted -- Laurent's sedge
  Carex vesicaria var. monile (Tuck.) Fernald -- not accepted -- blister sedge
  Carex vesicaria var. raeana (Boott) Fernald -- not accepted -- blister sedge
  Carex virescens var. swanii Fernald -- not accepted
  Carex X absconditiformis Fernald -- not accepted -- sedge
  Carex X anticostensis (Fernald) Lepage -- not accepted
  Carex X anticostensis var. anticostensis (Fernald) Lepage -- not accepted -- sedge
  Carex X langeana Fernald (pro sp.) -- accepted -- Lange's sedge
  Carex X leutzii var. pseudofulva (Fernald) B. Boivin (pro nm.) -- not accepted -- Leutz's sedge
  Carex X leutzii var. xanthina (Fernald) B. Boivin (pro nm.) -- not accepted -- Leutz's sedge
  Carex X pseudofulva Fernald -- not accepted
  Carex X quirponensis Fernald -- accepted -- sedge
  Carex X subviridula Fernald -- accepted -- sedge
  Carex X trichina Fernald -- accepted -- sedge
  Carex X xanthina Fernald -- not accepted
  Carphephorus tomentosus var. walteri (Elliot) Fernald -- not accepted
  Carpinus caroliniana var. virginiana (Marshall) Fernald -- not accepted
  Cassia fasciculata var. macrosperma Fernald -- not accepted
  Cassia hebecarpa Fernald -- not accepted
  Cassia nictitans var. hebecarpa Fernald -- not accepted
  Cassia nictitans var. leiocarpa Fernald -- not accepted
  Castilleja angustifolia var. bradburii (Nutt.) Fernald -- not accepted
  Castilleja angustifolia var. hispida (Benth.) Fernald -- not accepted
  Castilleja applegatei Fernald -- accepted -- pine Indian paintbrush, wavyleaf Indian paintbrush, wavyleaf paintbrush
  Castilleja applegatei ssp. applegatei Fernald -- accepted -- wavyleaf Indian paintbrush
  Castilleja applegatei ssp. pinetorum (Fernald) T.I. Chuang & Heckard -- accepted -- wavyleaf Indian paintbrush
  Castilleja applegatei var. applegatei Fernald -- not accepted -- Applegate's Indian paintbrush
  Castilleja applegatei var. breweri (Fernald) N.H. Holmgren -- not accepted
  Castilleja applegatei var. pinetorum (Fernald) N.H. Holmgren -- not accepted
  Castilleja breweri Fernald -- not accepted
  Castilleja dixonii Fernald -- not accepted
  Castilleja elmeri Fernald -- accepted -- Wenatchee Indian paintbrush
  Castilleja hispida ssp. abbreviata (Fernald) Pennell -- not accepted
  Castilleja miniata ssp. dixonii (Fernald) Kartesz -- accepted -- giant red Indian paintbrush
  Castilleja miniata var. dixonii (Fernald) A. Nelson & J.F. Macbr. -- not accepted
  Castilleja patriotica Fernald -- accepted -- Huachuca Indian paintbrush, Huachuca Mountain Indian paintbrush
  Castilleja pinetorum Fernald -- not accepted
  Castilleja pruinosa Fernald -- not accepted
  Castilleja pruinosa Fernald -- accepted -- frosted Indian paintbrush
  Castilleja rupicola Piper ex Fernald -- accepted -- cliff Indian paintbrush
  Catabrosa aquatica var. laurentiana Fernald -- not accepted -- water whorlgrass
  Celtis tenuifolia var. georgiana (Small) Fernald & B.G. Schub. -- not accepted
  Cenchrus longispinus (Hack.) Fernald -- accepted -- burgrass, field sandbur, innocent-weed, longspine sandbur, mat sandbur, sandbur
  Centaurium calycosum (Buckley) Fernald -- not accepted -- Arizona centaury
  Centaurium calycosum var. calycosum (Buckley) Fernald -- not accepted -- Arizona centaury
  Centaurium texense (Griseb.) Fernald -- accepted -- Lady Bird's centaury, Texas centaury
  Centella erecta (L. f.) Fernald -- not accepted -- erect centella
  Centrosema virginianum var. ellipticum (DC.) Fernald -- not accepted
  Cerastium alpinum var. capillare (Fernald & Wiegand) B. Boivin -- not accepted
  Cerastium beeringianum ssp. terrae-novae (Fernald & Wiegand) Hultén -- not accepted -- Bering chickweed
  Cerastium beeringianum var. capillare Fernald & Wiegand -- not accepted
  Cerastium terrae-novae Fernald & Wiegand -- accepted
  Chamaecrista fasciculata var. macrosperma (Fernald) C.F. Reed -- accepted -- partridge pea, sleepingplant
  Chamaecrista nictitans var. hebecarpa (Fernald) C.F. Reed -- not accepted
  Chamaecrista nictitans var. leiocarpa (Fernald) Moldenke -- not accepted
  Chamaedaphne calyculata var. latifolia (Aiton) Fernald -- not accepted -- leatherleaf
  Chamaerhodos nuttallii var. keweenawensis Fernald -- not accepted
  Chamaesaracha grandiflora (Hook.) Fernald -- not accepted
  Chamaesyce interaxillaris (Fernald) Millsp. -- not accepted
  Chamaesyce potosina (Fernald) Arthur -- not accepted
  Chamaesyce puberula (Fernald) Millsp. -- not accepted
  Chelone glabra var. dilatata Fernald & Wiegand -- not accepted
  Chenopodium hybridum var. standleyanum (Aellen) Fernald -- not accepted
  Chrysopsis adenolepis Fernald -- not accepted
  Chrysopsis graminifolia var. latifolia Fernald -- not accepted
  Chrysopsis longii Fernald -- not accepted
  Chrysopsis mariana var. floridana (Small) Fernald -- not accepted
  Chrysopsis mariana var. macradenia Fernald -- not accepted
  Chrysopsis nervosa (Willd.) Fernald -- not accepted
  Cicuta maculata var. curtissii (J.M. Coult. & Rose) Fernald -- not accepted
  Cicuta maculata var. victorinii (Fernald) B. Boivin -- accepted -- cicutaire maculée variété de Victorin, spotted water hemlock
  Cicuta victorinii Fernald -- not accepted
  Cinna arundinacea var. inexpansa Fernald & Griscom -- not accepted
  Circaea canadensis sensu Fernald -- not accepted
  Circaea canadensis var. virginiana Fernald -- not accepted
  Cirsium carolinianum (Walter) Fernald & B.G. Schub. -- accepted -- Carolina thistle, soft thistle
  Cirsium hillii (Canby) Fernald -- not accepted -- Hill's thistle
  Cirsium muticum var. monticola Fernald -- not accepted
  Cirsium muticum var. subpinnatifidum (Britton) Fernald -- not accepted
  Cirsium undulatum var. megacephalum (A. Gray) Fernald -- not accepted
  Cirsium X iowense (Pammel) Fernald (pro sp.) -- accepted -- Iowa thistle
  Cleistes bifaria (Fernald) Catling & Gregg -- not accepted -- small spreading pogonia
  Cleistes divaricata var. bifaria Fernald -- not accepted
  Cleistesiopsis bifaria (Fernald) Pansarin & F. Barros -- accepted
  Clematis albicoma var. coactilis Fernald -- not accepted
  Clematis coactilis (Fernald) Keener -- accepted -- Virginia whitehair leather flower
  Clematis verticillaris var. cacuminis Fernald -- not accepted
  Clinopodium vulgare var. neogaea (Fernald) C.F. Reed -- not accepted
  Coelopleurum lucidum (L.) Fernald -- not accepted
  Comandra richardsiana Fernald -- not accepted
  Commelina erecta var. angustifolia (Michx.) Fernald -- not accepted -- whitemouth dayflower
  Commelina erecta var. deamiana Fernald -- not accepted -- whitemouth dayflower
  Comptonia peregrina var. asplenifolia (L.) Fernald -- not accepted
  Comptonia peregrina var. aspleniifolia (L.) Fernald -- not accepted
  Convolvulus sepium var. pubescens (A. Gray) Fernald -- not accepted
  Convolvulus spithamaeus var. pubescens (A. Gray) Fernald -- not accepted
  Coptis groenlandica (Oeder) Fernald -- not accepted
  Corallorhiza trifida var. verna (Nutt.) Fernald -- not accepted
  Corallorrhiza trifida var. verna (Nutt.) Fernald -- not accepted
  Coreopsis heterogyna Fernald -- not accepted
  Coreopsis oniscicarpa Fernald -- not accepted
  Coreopsis oniscicarpa var. simulans Fernald -- not accepted
  Cornus X acadiensis Fernald -- accepted -- Acadia dogwood
  Corydalis halei (Small) Fernald & B.G. Schub. -- not accepted
  Crocanthemum bicknellii (Fernald) Barnhart -- not accepted
  Crossosoma parviflorum B.L. Rob. & Fernald -- not accepted -- smallflower rockflower
  Crotalaria purshii var. bracteolifera Fernald -- not accepted
  Cynoglossum boreale Fernald -- not accepted
  Cynoglossum virginianum var. boreale (Fernald) Cooperr. -- accepted -- wild comfrey
  Cyperus dipsaciformis Fernald -- not accepted
  Cyperus filiculmis var. macilentus Fernald -- not accepted
  Cyperus filiculmis var. oblitus Fernald & Griscom -- not accepted
  Cyperus flavescens var. poiformis (Pursh) Fernald -- not accepted
  Cyperus hystricinus Fernald -- accepted -- bristly flatsedge
  Cyperus lupulinus ssp. macilentus (Fernald) Marcks -- accepted -- Great Plains flatsedge
  Cyperus plukenetii Fernald -- accepted -- Plukenet's flatsedge
  Cyperus polystachyos var. texensis (Torr.) Fernald -- not accepted -- Texan flatsedge
  Cyperus retrofractus var. dipsaciformis (Fernald) Kük. -- not accepted
  Cyperus retrofractus var. hystricinus (Fernald) Kük. -- not accepted
  Cyperus retrorsus var. cylindricus (Elliott) Fernald & Griscom -- not accepted -- pine barren flatsedge
  Cyperus retrorsus var. deeringianus (Britton & Small) Fernald & Griscom -- not accepted
  Cyperus retrorsus var. nashii (Britton) Fernald & Griscom -- not accepted
  Cyperus X weatherbianus Fernald -- accepted
  Cypripedium calceolus var. parviflorum (Salisb.) Fernald -- not accepted
  Cypripedium calceolus var. planipetalum (Fernald) Vict. & J. Rousseau -- not accepted -- cypripčde jaune variété ŕ pétales plats, flat-petal lady's-slipper
  Cypripedium planipetalum (Fernald) Morris & Eames -- not accepted -- monarch lady's slipper
  Cyrilla racemiflora var. subglobosa Fernald -- not accepted
  Dalea lumholtzii B.L. Rob. & Fernald -- accepted -- Lumholtz dalea, Lumholtz's prairie clover
  Danthonia spicata var. typica Fernald -- not accepted
  Dentaria concatenata var. coalescens Fernald -- not accepted
  Dentaria laciniata var. integra (O.E. Schulz) Fernald -- not accepted
  Descurainia pinnata var. brachycarpa (Richardson) Fernald -- not accepted
  Desmanthus illinoensis (Michx.) MacMill. ex B.L. Rob. & Fernald -- accepted -- Illinois bundleflower, prairie bundleflower
  Desmodium ciliare var. lancifolium Fernald & B.G. Schub. -- accepted -- lanceleaf ticktrefoil
  Dianthera americana var. subcoriacea (Fernald) Shinners -- not accepted
  Diarrhena festucoides (Raf.) Fernald -- not accepted
  Dicliptera brachiata var. glandulosa (Scheele) Fernald -- not accepted
  Dicliptera brachiata var. ruthii Fernald -- not accepted
  Diervilla lonicera var. hypomalaca Fernald -- not accepted
  Digitaria argillacea (Hitchc. & Chase) Fernald -- accepted -- tropical crabgrass
  Digitaria argillacea var. argillacea (Hitchc. & Chase) Fernald -- accepted
  Digitaria argyrostachya (Steud.) Fernald -- not accepted
  Digitaria badia (Scribn. & Merr.) Fernald -- accepted
  Digitaria bakeri (Nash) Fernald -- accepted
  Digitaria curvinervis (Hack.) Fernald -- accepted
  Digitaria distans (Chase) Fernald -- accepted
  Digitaria filiformis var. laeviglumis (Fernald) Wipff -- accepted
  Digitaria filiformis var. villosa (Walter) Fernald -- not accepted
  Digitaria gracillima (Scribn.) Fernald -- accepted -- longleaf crabgrass
  Digitaria ischaemum var. mississippiensis (Gatt.) Fernald -- accepted -- Mississippi smooth crabgrass
  Digitaria laeviglumis Fernald -- not accepted
  Digitaria sanguinalis var. marginata (Link) Fernald -- not accepted
  Digitaria simpsonii (Vasey) Fernald -- accepted -- Isle-of-Pines crabgrass
  Diodia teres var. hirsutior Fernald & Grisc. -- not accepted -- poorjoe
  Diodia teres var. hystricina Fernald & Grisc. -- not accepted -- poorjoe
  Diodia teres var. oblongifolia Fernald -- not accepted -- poorjoe
  Diodia teres var. setifera Fernald & Grisc. -- not accepted
  Diodia virginiana var. attenuata Fernald -- accepted -- Virginia buttonweed
  Dioscorea quaternata var. glauca (Muhl. ex L.C. Beck) Fernald -- not accepted
  Dioscorea villosa f. glabrifolia (Bartlett) Fernald -- not accepted
  Dioscorea villosa var. glabrifolia (Bartlett) Fernald -- not accepted
  Diphasium complanatum ssp. flabelliforme (Fernald) Á. Löve & D. Löve -- not accepted
  Draba allenii Fernald -- not accepted
  Draba arabisans var. canadensis (Burnet) Fernald & C.H. Knowlt. -- not accepted
  Draba clivicola Fernald -- not accepted
  Draba glabella var. brachycarpa (Rupr.) Fernald -- not accepted -- smooth whitlowgrass
  Draba glabella var. megasperma (Fernald & C.H. Knowlt.) Fernald -- not accepted
  Draba glabella var. orthocarpa (Fernald & C.H. Knowlt.) Fernald -- not accepted
  Draba glabella var. pycnosperma (Fernald & C.H. Knowlt.) C.H. Mulligan -- not accepted -- drave glabre variété ŕ graines imbriquées
  Draba hirta var. laurentiana (Fernald) B. Boivin -- not accepted
  Draba hirta var. pycnosperma (Fernald & C.H. Knowlt.) B. Boivin -- not accepted
  Draba incerta var. peasei (Fernald) Rollins -- not accepted
  Draba laurentiana Fernald -- not accepted -- St. Lawrence whitlowgrass
  Draba megasperma Fernald & C.H. Knowlt. -- not accepted
  Draba minganensis (Vict.) Fernald -- not accepted
  Draba norvegica var. clivicola (Fernald) B. Boivin -- not accepted -- Norwegian whitlowgrass
  Draba norvegica var. pleiophylla Fernald -- not accepted
  Draba norvegica var. sornborgeri (Fernald) B. Boivin -- not accepted
  Draba peasei Fernald -- not accepted -- drave de Pease
  Draba pycnosperma Fernald & C.H. Knowlt. -- not accepted -- dense whitlowgrass
  Draba reptans (Lam.) Fernald -- accepted -- Carolina draba, Carolina whitlowgrass, creeping draba
  Draba reptans var. micrantha (Nutt.) Fernald -- not accepted
  Draba sornborgeri Fernald -- not accepted
  Drosera rotundifolia var. comosa Fernald -- accepted -- roundleaf sundew
  Dryopteris spinulosa var. americana (Fisch. ex Kunze) Fernald -- not accepted
  Dryopteris thelypteris var. haleana (Fernald) M. Broun & Weath. -- not accepted
  Echinochloa muricata (P. Beauv.) Fernald -- accepted -- rough barnyard grass, rough barnyardgrass
  Echinochloa muricata Fernald -- not accepted
  Echinochloa muricata var. muricata (P. Beauv.) Fernald -- accepted -- rough barnyardgrass
  Echinochloa pungens var. coarctata Fernald & Griscom -- not accepted
  Echinochloa pungens var. ludoviciana (Wiegand) Fernald & Griscom -- not accepted
  Echinochloa pungens var. microstachya (Wiegand) Fernald & Griscom -- not accepted
  Echinochloa pungens var. multiflora (Wiegand) Fernald & Griscom -- not accepted
  Echinochloa pungens var. occidentalis (Wiegand) Fernald & Griscom -- not accepted
  Echinochloa walteri f. breviseta Fernald & Griscom -- not accepted
  Eleocharis ambigens Fernald -- accepted
  Eleocharis capitata var. dispar (E.J. Hill) Fernald -- not accepted
  Eleocharis diandra var. depressa Fernald -- not accepted
  Eleocharis engelmannii var. monticola (Fernald) Svenson -- not accepted
  Eleocharis engelmannii var. robusta Fernald -- not accepted
  Eleocharis flaccida var. olivacea (Torr.) Fernald & Griscom -- not accepted
  Eleocharis halophila (Fernald & Brackett) Fernald & Brackett -- not accepted -- saltmarsh spikerush
  Eleocharis lanceolata Fernald -- accepted -- daggerleaf spikerush
  Eleocharis macounii Fernald -- not accepted -- Macoun's spikerush
  Eleocharis monticola Fernald -- not accepted
  Eleocharis nitida Fernald -- accepted -- quill spikerush
  Eleocharis obtusa var. ellipsoidalis Fernald ex Svenson -- not accepted
  Eleocharis obtusa var. gigantea Fernald -- not accepted
  Eleocharis obtusa var. jejuna Fernald -- not accepted
  Eleocharis obtusa var. lanceolata (Fernald) Gilly -- not accepted
  Eleocharis perlonga Fernald & Brackett -- not accepted
  Eleocharis quadrangulata var. crassior Fernald -- not accepted
  Eleocharis tuberculosa var. pubnicoensis Fernald -- not accepted
  Eleocharis uniglumis var. halophila Fernald & Brackett -- not accepted
  Eleocharis X macounii Fernald -- accepted -- Macoun's spikerush
  Eleocharis xyridiformis Fernald & Brackett -- not accepted
  Elymus canadensis f. calvescens (Fernald) Bowden -- not accepted
  Elymus canadensis f. glaucifolius (Willd.) Fernald -- not accepted
  Elymus canadensis f. wiegandii (Fernald) Scoggan -- not accepted
  Elymus canadensis ssp. wiegandii (Fernald) Á. Löve -- not accepted
  Elymus canadensis var. wiegandii (Fernald) Bowden -- not accepted -- Wiegand's wildrye
  Elymus hystrix f. bigelovianus (Fernald) Dore -- not accepted
  Elymus hystrix var. bigeloviana (Fernald) Bowden -- not accepted -- eastern bottle-brush grass, eastern bottlebrush grass
  Elymus hystrix var. bigelovianus (Fernald) Bowden -- accepted
  Elymus hystrix var. bigelovianus (Fernald) Mohlenbr. -- not accepted
  Elymus villosus f. arkansanus (Scribn. & C.R. Ball) Fernald -- not accepted
  Elymus virginicus f. australis (Scribn. & C.R. Ball) Fernald -- not accepted
  Elymus virginicus f. hirsutiglumis (Scribn.) Fernald -- not accepted
  Elymus virginicus f. lasiolepis Fernald -- not accepted
  Elymus wiegandii Fernald -- accepted -- Wiegand's wildrye
  Elymus wiegandii f. calvescens Fernald -- not accepted
  Elymus wiegandii f. wiegandii Fernald -- not accepted
  Elytraria caroliniensis var. angustifolia (Fernald) S.F. Blake -- accepted -- Carolina scalystem
  Elytraria virgata var. angustifolia Fernald -- not accepted
  Empetrum atropurpureum Fernald & Wiegand -- not accepted
  Empetrum eamesii Fernald & Wiegand -- not accepted
  Empetrum eamesii ssp. atropurpureum (Fernald & Wiegand) D. Löve -- not accepted
  Empetrum eamesii ssp. eamesii Fernald & Wiegand -- not accepted
  Empetrum nigrum var. atropurpureum (Fernald & Wiegand) B. Boivin -- not accepted
  Empetrum nigrum var. eamesii (Fernald & Wiegand) B. Boivin -- not accepted
  Empetrum rubrum ssp. eamesii (Fernald & Wiegand) R.D. Good -- not accepted
  Empetrum rubrum var. atropurpureum (Fernald & Wiegand) R.D. Good -- not accepted
  Empetrum rubrum var. eamesii (Fernald & Wiegand) Cronquist -- not accepted
  Epigaea repens var. glabrifolia Fernald -- not accepted
  Epilobium angustifolium var. intermedium (Lange) Fernald -- not accepted
  Epilobium angustifolium var. macrophyllum (Hausskn.) Fernald -- not accepted
  Epilobium angustifolium var. platyphyllum (Daniels) Fernald -- not accepted
  Epilobium ecomosum (Fassett) Fernald -- not accepted
  Epilobium glandulosum var. adenocaulon (Hausskn.) Fernald -- not accepted
  Epilobium glandulosum var. brionense Fernald -- not accepted
  Epilobium glandulosum var. cardiophyllum Fernald -- not accepted
  Epilobium glandulosum var. occidentale (Trel.) Fernald -- not accepted
  Epilobium nesophilum (Fernald) Fernald -- not accepted
  Epilobium nesophilum var. sabulonense Fernald -- not accepted
  Epilobium palustre var. longirameum Fernald & Wiegand -- not accepted
  Epilobium palustre var. oliganthum (Michx.) Fernald -- not accepted
  Epilobium palustre var. sabulonense (Fernald) B. Boivin -- not accepted
  Epilobium paniculatum var. subulatum (Hausskn.) Fernald -- not accepted
  Epilobium pylaieanum Fernald -- not accepted
  Epilobium scalare Fernald -- not accepted
  Epilobium steckerianum Fernald -- not accepted
  Equisetum sylvaticum var. multiramosum (Fernald) Wherry -- not accepted
  Eragrostis hirsuta var. laevivaginata Fernald -- not accepted
  Eragrostis trichodes var. pilifera (Scheele) Fernald -- not accepted -- sand lovegrass
  Erechtites hieraciifolia var. intermedia Fernald -- not accepted
  Erechtites hieraciifolia var. megalocarpa (Fernald) Cronquist -- not accepted -- American burnweed
  Erechtites hieraciifolia var. praealta (Raf.) Fernald -- not accepted
  Erechtites hieraciifolius var. megalocarpa (Fernald) Cronquist -- accepted -- American burnweed
  Erechtites megalocarpa Fernald -- not accepted
  Erianthus coarctatus Fernald -- not accepted
  Erianthus coarctatus var. coarctatus Fernald -- not accepted
  Erianthus coarctatus var. elliottianus Fernald -- not accepted
  Erianthus giganteus var. compactus (Nash) Fernald -- not accepted
  Erianthus saccharoides var. compactus (Nash) Fernald -- not accepted
  Erigeron elatus var. oligocephalus (Fernald & Wiegand) Fernald -- not accepted
  Erigeron hyssopifolius var. villicaulis Fernald -- not accepted -- hyssopleaf fleabane, vergerette ŕ feuilles d'hysope variété ŕ tige velue
  Erigeron philadelphicus var. scaturicola (Fernald) Fernald -- not accepted
  Erigeron pulchellus var. brauniae Fernald -- accepted -- Braun's erigeron
  Erigeron strigosus ssp. septentrionalis (Fernald & Wiegand) Wagenitz -- not accepted
  Erigeron strigosus var. septentrionalis (Fernald & Wiegand) Fernald -- accepted -- prairie fleabane
  Eriophorum chamissonis var. albidum (F. Nyl.) Fernald -- not accepted
  Eriophorum chamissonis var. aquatile (Norman) Fernald -- not accepted
  Eriophorum gracile var. caurianum Fernald -- not accepted -- slender cottongrass
  Eriophorum opacum (Björnstr.) Fernald -- not accepted
  Eriophorum spissum Fernald -- not accepted
  Eriophorum spissum var. erubescens (Fernald) Fernald -- not accepted
  Eriophorum tenellum var. monticola Fernald -- not accepted
  Eriophorum vaginatum ssp. spissum (Fernald) Hultén -- not accepted
  Eriophorum vaginatum var. spissum (Fernald) B. Boivin -- not accepted -- tussock cottongrass
  Eriophorum viridicarinatum (Engelm.) Fernald -- accepted -- tassel cotton-grass, thinleaf cottonsedge
  Eryngium prostratum var. disjunctum Fernald -- not accepted
  Erysimum coarctatum Fernald -- accepted -- shy wallflower, small-flower prairie wallflower
  Erysimum inconspicuum var. coarctatum (Fernald) Rossbach -- not accepted -- shy wallflower, vélar ŕ petites fleurs variété du Saint-Laurent
  Erysimum pallasi (Pursh) Fernald -- not accepted
  Erysimum pallasii (Pursh) Fernald -- accepted -- Pallas' wallflower
  Erysimum pallasii var. pallasii (Pursh) Fernald -- not accepted -- Pallas' wallflower
  Eubotrys racemosa var. elongata (Small) Fernald -- not accepted
  Eulophia ecristata (Fernald) Ames -- not accepted
  Eumecanthus calcicola (Fernald) Millsp. -- not accepted
  Eumecanthus muscicola (Fernald) Millsp. -- not accepted
  Eupatoriadelphus maculatus var. foliosum (Fernald) Kartesz -- not accepted
  Eupatorium album var. monardifolium Fernald -- not accepted
  Eupatorium cordigerum (Fernald) Fernald -- not accepted
  Eupatorium cuneifolium var. semiserratum (DC.) Fernald & Grisc. -- not accepted
  Eupatorium hyssopifolium var. calcaratum Fernald & B.G. Schub. -- not accepted -- hyssopleaf thoroughwort
  Eupatorium hyssopifolium var. linearifolium (Walter) Fernald -- not accepted
  Eupatorium leucolepis var. novae-angliae Fernald -- accepted -- justiceweed
  Eupatorium luciae-brauniae Fernald -- not accepted
  Eupatorium maculatum var. foliosum (Fernald) Wiegand -- not accepted -- spotted joepyeweed
  Eupatorium perfoliatum var. colpophilum Fernald & Grisc. -- not accepted -- common boneset
  Eupatorium purpureum var. foliosum Fernald -- not accepted
  Eupatorium resinosum var. kentuckiense Fernald -- not accepted
  Eupatorium rotundifolium var. cordigerum Fernald -- not accepted -- roundleaf thoroughwort
  Eupatorium rugosum var. chlorolepis Fernald -- not accepted
  Eupatorium rugosum var. roanense (Small) Fernald -- not accepted
  Eupatorium rugosum var. villicaule (Fernald) S.F. Blake -- not accepted
  Eupatorium saltuense Fernald, non Agertina altissima (L.) King & H. Rob. -- not accepted
  Eupatorium sessilifolium var. vaseyi (Porter) Fernald & Grisc. -- not accepted -- upland boneset
  Eupatorium trifoliatum var. foliosum (Fernald) Farw. -- not accepted
  Eupatorium X cordigerum (Fernald) Fernald (pro sp.) -- accepted -- roundleaf thoroughwort
  Euphorbia ariensis var. villicaulis Fernald -- not accepted
  Euphorbia calcicola Fernald -- accepted
  Euphorbia dentata f. cuphosperma (Engelm.) Fernald -- not accepted
  Euphorbia interaxillaris Fernald -- not accepted
  Euphorbia ipecacuanhae f. linearis (Moldenke) Fernald -- not accepted
  Euphorbia lancifolia var. villicaulis Fernald -- not accepted
  Euphorbia muscicola Fernald -- accepted
  Euphorbia potosina Fernald -- accepted
  Euphorbia puberula Fernald -- not accepted
  Euphorbia purpurea (Raf.) Fernald -- accepted -- Darlington's glade spurge, Darlington's spurge
  Euphrasia arctica var. disjuncta (Fernald & Wiegand) Cronquist -- not accepted
  Euphrasia disjuncta Fernald & Wiegand -- accepted -- polar eyebright
  Euphrasia hudsoniana Fernald & Wiegand -- accepted -- Hudson Bay eyebright
  Euphrasia hudsoniana var. hudsoniana Fernald & Wiegand -- accepted -- Hudson Bay eyebright
  Euphrasia randii var. reeksii Fernald -- not accepted
  Euphrasia williamsii var. vestita Fernald & Wiegand -- not accepted
  Euthamia graminifolia var. hirtipes (Fernald) C.E.S. Taylor & R.J. Taylor -- not accepted -- flat-top goldentop
  Euthamia hirtipes (Fernald) Sieren (pro hybr.) -- not accepted
  Euthamia tenuifolia var. pycnocephala (Fernald) C.E.S. Taylor & R.J. Taylor -- not accepted -- slender goldentop
  Eutrochium maculatum var. foliosum (Fernald) E.E. Lamont -- accepted -- spotted joepyeweed
  Fagus grandifolia var. caroliniana (Louden) Fernald & Rehder -- not accepted
  Festuca octoflora var. glauca (Nutt.) Fernald -- not accepted
  Festuca octoflora var. tenella (Willd.) Fernald -- not accepted
  Festuca prolifera (Piper) Fernald -- accepted -- prolific fescue
  Festuca prolifera var. lasiolepis Fernald -- not accepted
  Festuca prolifera var. prolifera (Piper) Fernald -- not accepted
  Fimbristylis alamosana Fernald -- not accepted
  Fimbristylis autumnalis var. mucronulata (Michx.) Fernald -- not accepted
  Fimbristylis caroliniana (Lam.) Fernald -- accepted -- Carolina fimbry
  Fragaria multicipita Fernald -- not accepted
  Fragaria virginiana var. terrae-novae (Rydb.) Fernald & Wiegand -- not accepted
  Fraxinus americana var. biltmoreana (Beadle) J. Wright ex Fernald -- not accepted
  Fraxinus caroliniana var. oblanceolata (M.A. Curtis) Fernald & B.G. Schub. -- not accepted
  Fraxinus pennsylvanica var. austinii Fernald -- not accepted
  Fraxinus pennsylvanica var. integerrima (Vahl) Fernald -- not accepted
  Fraxinus pennsylvanica var. subintegerrima (Vahl) Fernald -- not accepted
  Froelichia floridana var. campestris (Small) Fernald -- not accepted -- plains snakecotton
  Funastrum cynanchoides var. subtruncatum (B.L. Rob. & Fernald) J.F. Macbr. -- not accepted
  Galium brevipes Fernald & Wiegand -- not accepted -- limestone swamp bedstraw
  Galium circaezans var. hypomalacum Fernald -- accepted -- licorice bedstraw
  Galium circaezans var. typicum Fernald -- not accepted
  Galium obtusum var. filifolium (Wiegand) Fernald -- not accepted
  Galium obtusum var. floridanum (Wiegand) Fernald -- not accepted
  Galium tinctorium var. subbiflorum (Wiegand) Fernald -- not accepted
  Galium trifidum ssp. brevipes (Fernald & Wiegand) Á. Löve & D. Löve -- accepted
  Galium trifidum ssp. halophilum (Fernald & Wiegand) Puff -- accepted -- threepetal bedstraw
  Galium trifidum var. hallophilum Fernald & Wiegand -- not accepted
  Galium trifidum var. halophilum Fernald & Wiegand -- not accepted
  Galium triflorum var. asprelliforme Fernald -- not accepted
  Gamochaeta calviceps (Fernald) Cabrera -- accepted
  Gaylussacia bigeloviana (Fernald) Sorrie & Weakley -- accepted
  Gaylussacia dumosa var. bigeloviana Fernald -- not accepted -- dwarf huckleberry, huckleberry
  Gentiana catesbaei var. nummulariifolia Fernald -- not accepted
  Gentiana cherokeensis (W.P. Lemmon) Fernald -- not accepted
  Gentiana pennelliana Fernald -- accepted -- wiregrass gentian
  Gentiana victorinii Fernald -- not accepted
  Gentianella crinita ssp. victorinii (Fernald) J.M. Gillett -- not accepted
  Gentianopsis procera var. victorinii (Fernald) Iltis -- not accepted
  Gentianopsis victorinii (Fernald) Iltis -- not accepted -- gentianopsis de Victorin, Victorin's fringedgentian, victorin's gentian
  Gentianopsis virgata ssp. victorinii (Fernald) Lammers -- accepted -- Victorin's gentian
  Geocaulon Fernald -- accepted -- false toadflax
  Geocaulon lividum (Richardson) Fernald -- accepted -- false toadflax
  Geranium bicknellii var. longipes (S. Watson) Fernald -- not accepted -- northern cranesbill
  Geranium carolinianum var. confertiflorum Fernald -- not accepted -- Carolina geranium
  Geranium carolinianum var. sphaerospermum (Fernald) Breitung -- accepted -- Carolina geranium
  Geranium nemorale var. bicknellii (Britton) Fernald -- not accepted
  Geranium sphaerospermum Fernald -- not accepted
  Gerardia calycosa (Mack. & Bush) Fernald -- not accepted
  Gerardia flava var. macrantha (Pennell) Fernald -- not accepted
  Gerardia grandiflora var. pulchra (Pennell) Fernald -- not accepted
  Gerardia pedicularia var. ambigens Fernald -- not accepted
  Gerardia pedicularia var. austromontana (Pennell) Fernald -- not accepted
  Gerardia pedicularia var. intercedens (Pennell) Fernald -- not accepted
  Geum aleppicum var. strictum (Aiton) Fernald -- not accepted
  Geum canadense var. brevipes Fernald -- not accepted -- white avens
  Geum canadense var. camporum (Rydb.) Fernald & Weath. -- not accepted -- white avens
  Geum canadense var. grimesii Fernald & Weath. -- not accepted
  Geum canadense var. grimesii Fernald & Weath. -- not accepted -- grand birch, Grimes' avens
  Geum canadense var. texanum Fernald & Weath. -- not accepted -- Texan avens
  Geum laciniatum var. trichocarpum Fernald -- not accepted -- rough avens
  Geum X pulchrum Fernald (pro sp.) -- accepted -- avens
  Glaux maritima ssp. obtusifolia (Fernald) B. Boivin -- not accepted -- sea milkwort
  Glaux maritima var. obtusifolia Fernald -- not accepted
  Glyceria arkansana Fernald -- not accepted -- Arkansas mannagrass
  Glyceria canadensis var. parviflora Fernald -- not accepted
  Glyceria fluitans var. angustata Vasey ex Fernald -- not accepted
  Glyceria grandis f. pallescens Fernald -- not accepted
  Glyceria maxima f. pallescens (Fernald) B. Boivin -- not accepted
  Glyceria septentrionalis var. arkansana (Fernald) Steyerm. & C. Kucera -- accepted
  Glyceria striata var. stricta (Scribn.) Fernald -- not accepted -- fowl mannagrass
  Gnaphalium calviceps Fernald -- not accepted
  Gnaphalium obtusifolium var. praecox Fernald -- not accepted
  Gnaphalium peregrinum Fernald -- not accepted
  Goodyera ophioides (Fernald) Rydb. -- not accepted
  Goodyera repens ssp. ophioides (Fernald) Á. Löve & W. Simon -- not accepted
  Goodyera repens var. ophioides Fernald -- not accepted
  Gratiola neglecta var. glaberrima (Fernald) Fernald -- not accepted -- gratiole négligée variété du Saint-Laurent
  Habenaria albida var. straminea (Fernald) Morris & Eames -- not accepted
  Habenaria clavellata var. ophioglossoides Fernald -- not accepted
  Habenaria hookeri var. abbreviata Fernald -- not accepted
  Habenaria lacera var. terrae-novae Fernald -- not accepted
  Habenaria obtusata var. collectanea Fernald -- not accepted
  Habenaria orbiculata var. lehorsii Fernald -- not accepted
  Habenaria orbiculata var. menziesii (Lindl.) Fernald -- not accepted
  Habenaria straminea Fernald -- not accepted
  Habenaria viridis var. interjecta Fernald -- not accepted
  Hackelia americana (A. Gray) Fernald -- not accepted
  Hackelia deflexa var. americana (A. Gray) Fernald & I.M. Johnst. -- accepted -- American stickseed, nodding stickseed
  Halerpestes cymbalaria ssp. saximontana (Fernald) Moldenke -- not accepted
  Haloscias hultenii (Fernald) Holub -- not accepted
  Helenium autumnale var. montanum (Nutt.) Fernald -- not accepted -- mountain sneezeweed
  Helenium autumnale var. parviflorum (Nutt.) Fernald -- not accepted -- smallflower sneezeweed
  Helenium floridanum Fernald -- not accepted
  Helenium godfreyi Fernald -- not accepted
  Helianthemum bicknellii Fernald -- accepted -- hoary frostweed
  Helianthemum canadense var. sabulonum Fernald -- not accepted
  Helianthemum dumosum (E.P. Bicknell) Fernald -- accepted -- bushy frostweed, bushy rush-rose
  Helianthus angustifolius var. planifolius Fernald -- not accepted
  Helianthus atrorubens var. alsodes Fernald -- not accepted
  Helianthus laetiflorus var. rigidus (Cass.) Fernald -- not accepted
  Helianthus laetiflorus var. subrhomboideus (Rydb.) Fernald -- not accepted
  Heliopsis helianthoides var. scabra (Dunal) Fernald -- accepted -- heliopsis, smooth oxeye
  Heliopsis helianthoides var. solidaginoides (L.) Fernald -- not accepted
  Heterotheca adenolepis (Fernald) H.E. Ahles -- not accepted
  Heterotheca correllii (Fernald) H.E. Ahles -- not accepted
  Heterotheca mariana var. macradenia (Fernald) V.L. Harms -- not accepted
  Heuchera americana var. heteradenia Fernald -- not accepted
  Heuchera americana var. subtruncata Fernald -- not accepted
  Hexastylis lewisii (Fernald) H.L. Blomq. & Oosting -- accepted -- Lewis' heartleaf
  Hieracium canadense var. fasciculatum (Pursh) Fernald -- not accepted -- Canadian hawkweed
  Hieracium canadense var. hirtirameum Fernald -- not accepted
  Hieracium robinsonii (Zahn) Fernald -- accepted -- épervičre de Robinson, Robinson's hawkweed
  Hieracium scabrum var. intonsum Fernald & H. St. John -- not accepted -- rough hawkweed
  Hieracium scabrum var. leucocaule Fernald & H. St. John -- not accepted -- rough hawkweed
  Hieracium scabrum var. tonsum Fernald & H. St. John -- not accepted -- rough hawkweed
  Hierochloe odorata f. eamesii Fernald -- not accepted
  Honckenya peploides ssp. robusta (Fernald) Hultén -- accepted -- seaside sandplant
  Honckenya peploides var. robusta (Fernald) House -- not accepted
  Houstonia nigricans (Lam.) Fernald -- not accepted
  Hydrocotyle verticillata var. triradiata (A. Rich.) Fernald -- accepted -- whorled marshpennywort
  Hypericum canadense var. galiiforme Fernald -- not accepted
  Hypericum denticulatum var. recognitum Fernald & B.G. Schub. -- not accepted
  Hypericum mutilum ssp. latisepalum (Fernald) N. Robson -- accepted -- dwarf St. Johnswort
  Hypericum mutilum var. latisepalum Fernald -- not accepted
  Hypericum mutilum var. parviflorum (Willd.) Fernald -- not accepted
  Hypericum punctatum var. pseudomaculatum (Bush) Fernald -- not accepted
  Hypericum virginicum var. fraseri (Spach) Fernald -- not accepted
  Hypoxis longii Fernald -- not accepted -- star-grass
  Hystrix patula f. bigeloviana (Fernald) Gleason -- not accepted
  Hystrix patula var. bigeloviana (Fernald) Deam -- not accepted
  Ilex curtissii (Fernald) Small -- not accepted
  Ilex decidua var. curtissii Fernald -- not accepted
  Ilex montana var. beadlei (Ashe) Fernald -- not accepted
  Ilex verticillata var. fastigiata (E.P. Bicknell) Fernald -- not accepted
  Iris prismatica var. austrina Fernald -- not accepted
  Iris setosa ssp. canadensis (Foster ex B.L. Rob. & Fernald) Hultén -- not accepted
  Iris setosa var. canadensis Foster ex B.L. Rob. & Fernald -- not accepted -- Canada beachhead iris
  Iris verna var. smalliana Fernald ex M.E. Edwards -- accepted -- dwarf violet iris
  Iva frutescens var. oraria (Bartlett) Fernald & Grisc. -- not accepted
  Juncoides saltuense (Fernald) A. Heller -- not accepted
  Juncus albescens (Lange) Fernald -- not accepted -- northern white rush
  Juncus alpinoarticulatus ssp. fuscescens (Fernald) Hämet-Ahti -- not accepted -- alpine rush
  Juncus alpinus var. fuscescens Fernald -- not accepted
  Juncus balticus var. melanogenus Fernald & Wiegand -- not accepted -- Baltic rush
  Juncus balticus var. stenocarpus Fernald & Buchenau -- not accepted -- Baltic rush
  Juncus brevicaudatus (Engelm.) Fernald -- accepted -- narrow-panicle rush, narrowpanicle rush
  Juncus bufonius var. halophilus Buchenau & Fernald -- not accepted
  Juncus canadensis var. euroauster Fernald -- not accepted
  Juncus canadensis var. sparsiflorus Fernald -- not accepted
  Juncus effusus ssp. pacificus (Fernald & Wiegand) Piper & Beattie -- accepted -- Pacific rush
  Juncus effusus ssp. solutus (Fernald & Wiegand) Hämet-Ahti -- accepted -- lamp rush
  Juncus effusus var. costulatus Fernald -- not accepted
  Juncus effusus var. exiguus Fernald & Wiegand -- not accepted -- lamp rush, small rush
  Juncus effusus var. pacificus Fernald & Wiegand -- not accepted -- Pacific rush
  Juncus effusus var. pylaei (Laharpe) Fernald & Wiegand -- not accepted -- common rush
  Juncus effusus var. solutus Fernald & Wiegand -- not accepted -- lamp rush
  Juncus exiguus (Fernald & Wiegand) Lint ex Snogerup & Zika -- accepted -- lamp rush
  Juncus fulviscens Fernald -- not accepted
  Juncus gerardii var. pedicellatus Fernald -- not accepted -- saltmeadow rush
  Juncus griscomi Fernald -- not accepted
  Juncus griscomii Fernald -- not accepted
  Juncus longii Fernald -- accepted -- Long's rush
  Juncus macer var. anthelatus (Wiegand) Fernald -- not accepted
  Juncus oronensis Fernald -- not accepted
  Juncus pervetus Fernald -- accepted
  Juncus platyphyllus (Wiegand) Fernald -- not accepted
  Juncus subcaudatus var. planisepalus Fernald -- not accepted -- woodland rush
  Juncus tenuis var. williamsii Fernald -- not accepted
  Juncus X alpiniformis Fernald -- accepted -- alpine rush
  Juncus X fulvescens Fernald -- accepted -- rush
  Juncus X nodosiformis Fernald -- accepted -- rush
  Juncus X oronensis Fernald (pro. sp.) -- accepted -- rush
  Juniperus communis var. megistocarpa Fernald & H. St. John -- accepted -- common juniper
  Juniperus virginiana ssp. crebra (Fernald & Grisc.) A.E. Murray -- not accepted
  Juniperus virginiana var. crebra Fernald & Grisc. -- not accepted
  Jussiaea michauxiana Fernald -- not accepted
  Justicia americana var. subcoriacea Fernald -- not accepted
  Justicia mortuifluminis Fernald -- not accepted
  Justicia umbratilis Fernald -- not accepted
  Kalmia angustifolia var. carolina (Small) Fernald -- accepted
  Kalmia latifolia var. laevipes Fernald -- not accepted
  Kobresia elachycarpa (Fernald) Fernald -- not accepted
  Kosteletzkya virginica var. aquilonia Fernald -- not accepted
  Krigia biflora ssp. glandulifera (Fernald) Iltis -- not accepted
  Lactuca biennis (Moench) Fernald -- accepted -- tall blue lettuce, wild blue lettuce
  Lactuca hirsuta var. sanguinea (Bigelow) Fernald -- not accepted -- hairy lettuce, hairy wild lettuce
  Lactuca terrae-novae Fernald -- accepted -- Newfoundland lettuce
  Lasiococcus dumosus var. bigelovianus (Fernald) Fernald -- not accepted
  Lathyrus japonicus var. aleuticus (Greene ex T.G. White) Fernald -- not accepted
  Lathyrus japonicus var. glaber (Ser.) Fernald -- not accepted
  Lathyrus japonicus var. pellitus Fernald -- accepted -- beach pea
  Lathyrus maritimus var. pellitus (Fernald) Gleason -- not accepted
  Lathyrus palustris var. macranthus (T.G. White) Fernald -- not accepted
  Lathyrus palustris var. retusus Fernald & H. St. John -- not accepted
  Lathyrus pauciflorus Fernald -- accepted -- few-flower vetchling, fewflower pea
  Lathyrus pauciflorus var. pauciflorus Fernald -- accepted -- fewflower pea
  Leersia virginica var. ovata (Poir.) Fernald -- accepted
  Lespedeza capitata var. calycina (Schindl.) Fernald -- not accepted
  Lespedeza capitata var. stenophylla Bissell & Fernald -- not accepted
  Lespedeza capitata var. velutina Fernald -- not accepted
  Lespedeza hirta var. dissimulans Fernald -- not accepted
  Lespedeza hirta var. intercursa Fernald -- not accepted
  Lespedeza hirta var. longifolia (DC.) Fernald -- not accepted
  Lesquerella purshii (S. Watson) Fernald -- not accepted
  Leucorchis albida ssp. straminea (Fernald) Á. Löve -- not accepted
  Leucothoe axillaris var. ambigens Fernald -- not accepted
  Leucothoe axillaris var. editorum (Fernald & B.G. Schub.) H.E. Ahles -- not accepted
  Leucothoe editorum Fernald & B.G. Schub. -- not accepted
  Leucothoe racemosa var. elongata (Small) Fernald -- not accepted
  Leucothoe racemosa var. projecta Fernald -- not accepted
  Liatris graminifolia var. lasia Fernald & Grisc. -- not accepted
  Liatris graminifolia var. smallii (Britton) Fernald & Grisc. -- not accepted
  Liatris graminifolia var. virgata (Nutt.) Fernald -- not accepted
  Liatris pilosa var. lasia (Fernald & Grisc.) Kartesz -- not accepted -- shaggy blazing star
  Ligusticum hultenii Fernald -- not accepted
  Ligusticum scothicum var. hultenii (Fernald) B. Boivin -- not accepted
  Ligusticum scoticum ssp. hultenii (Fernald) Calder & Roy L. Taylor -- accepted -- Hulten's licorice-root
  Ligusticum scoticum var. hultenii (Fernald) B. Boivin -- not accepted
  Lilaeopsis attenuata auct. non (Hook. & Arn.) Fernald -- not accepted
  Lilium canadense ssp. editorum (Fernald) Wherry -- not accepted -- Canada lily
  Lilium canadense var. editorum Fernald -- not accepted
  Lilium catesbaei var. longii Fernald -- not accepted
  Lindernia dubia var. riparia (Raf.) Fernald -- not accepted
  Linum medium var. texanum (Planch.) Fernald -- accepted -- stiff yellow flax, sucker flas
  Linum striatum var. multijugum Fernald -- not accepted
  Lippia lanceolata var. recognita Fernald & Griscom -- not accepted
  Lithospermum caroliniense ssp. croceum (Fernald) Cusick -- not accepted
  Lithospermum caroliniense var. croceum (Fernald) Cronquist -- accepted -- Carolina puccoon
  Lithospermum croceum Fernald -- not accepted
  Litsea aestivalis (L.) Fernald -- accepted -- pondspice
  Littorella americana Fernald -- not accepted
  Littorella uniflora var. americana (Fernald) Gleason -- not accepted
  Lobelia puberula var. simulans Fernald -- accepted -- downy lobelia
  Lomatogonium rotatum (L.) Fr. ex Fernald -- accepted -- marsh felwort
  Lomatogonium rotatum var. rotatum (L.) Fr. ex Fernald -- not accepted
  Lonicera caerulea var. cauriana (Fernald) B. Boivin -- accepted -- bluefly honeysuckle, white honeysuckle
  Lonicera cauriana Fernald -- not accepted
  Lonicera villosa var. calvescens (Fernald & Wiegand) Fernald -- accepted -- mountain fly honeysuckle
  Lonicera villosa var. fulleri Fernald -- accepted -- Fuller's honeysuckle
  Lonicera villosa var. solonis (Eaton) Fernald -- accepted -- mountain fly honeysuckle
  Lonicera villosa var. tonsa Fernald -- accepted -- mountain fly honeysuckle
  Lophiola septentrionalis Fernald -- not accepted
  Ludwigia natans var. stipitata Fernald & Griscom -- not accepted
  Ludwigia palustris var. americana (DC.) Fernald & Griscom -- not accepted
  Ludwigia palustris var. nana Fernald & Griscom -- not accepted
  Ludwigia palustris var. pacifica Fernald & Griscom -- not accepted
  Ludwigia repens var. stipitata (Fernald & Griscom) Munz -- not accepted
  Ludwigia sphaerocarpa var. deamii Fernald & Griscom -- not accepted
  Ludwigia sphaerocarpa var. jungens Fernald & Griscom -- not accepted
  Ludwigia sphaerocarpa var. macrocarpa Fernald & Griscom -- not accepted
  Luzula acuminata var. carolinae (S. Watson) Fernald -- accepted -- Carolina woodrush
  Luzula campestris var. echinata (Small) Fernald & Wiegand -- not accepted
  Luzula campestris var. macrantha (S. Watson) Fernald & Wiegand -- not accepted
  Luzula carolinae var. saltuensis (Fernald) Fernald -- not accepted
  Luzula multiflora ssp. multiflora var. acadiensis Fernald -- not accepted
  Luzula multiflora var. acadiensis Fernald -- not accepted
  Luzula multiflora var. acadiensis Fernald -- not accepted -- common woodrush
  Luzula pilosa var. saltuensis (Fernald) B. Boivin -- not accepted
  Luzula saltuensis Fernald -- not accepted
  Luzula sudetica var. frigida (Buchenau) Fernald -- not accepted
  Lychnis alpina f. albiflora (Lange) Fernald -- not accepted
  Lychnis alpina var. albiflora (Lange) Fernald -- not accepted
  Lychnis alpina var. americana Fernald -- not accepted -- American campion
  Lychnis furcata (Raf.) Fernald -- not accepted
  Lycopodium annotinum var. acrifolium Fernald -- not accepted -- stiff clubmoss
  Lycopodium clavatum ssp. megastachyon (Fernald & Bissell) Á. Löve & D. Löve -- not accepted
  Lycopodium clavatum var. megastachyon Fernald & Bissell -- not accepted
  Lycopodium complanatum var. flabelliforme Fernald -- not accepted
  Lycopodium flabelliforme (Fernald) Blanch. -- not accepted
  Lycopodium sabinaefolium var. sitchense (Rupr.) Fernald -- not accepted
  Lycopodium sabinifolium var. sitchense (Rupr.) Fernald -- not accepted
  Lycopus americanus var. scabrifolius Fernald -- not accepted
  Lycopus amplectens var. pubens (Britton) Fernald -- not accepted
  Lycopus uniflorus var. ovatus Fernald & H. St. John -- accepted -- northern bugleweed
  Lyonia ligustrina var. foliosiflora (Michx.) Fernald -- accepted -- maleberry, southern maleberry
  Lysimachia terrestris var. ovata (E.L. Rand & Redfield) Fernald -- not accepted
  Lysimachia X commixta Fernald -- accepted -- loosestrife
  Lysimachia X producta (A. Gray) Fernald (pro. sp.) -- accepted -- loosestrife
  Lythrum curtissii Fernald -- accepted -- Curtiss' loosestrife
  Maianthemum canadense var. interius Fernald -- not accepted
  Malaxis bayardii Fernald -- accepted -- Bayard's adder's-mouth orchid
  Malaxis brachypoda (A. Gray) Fernald -- not accepted -- adder's-mouth, white adder's-mouth orchid
  Mariscus californicus (S. Watson) Fernald -- not accepted
  Marsilea mollis B.L. Rob. & Fernald -- accepted -- Chihuahuan waterclover
  Melampyrum lineare var. pectinatum (Pennell) Fernald -- accepted -- narrowleaf cowwheat
  Melica mutica f. diffusa (Pursh) Fernald -- not accepted
  Melica striata f. albicans (Fernald) Fernald -- not accepted
  Mentha arvensis var. glabrata (Benth.) Fernald -- not accepted
  Mesadenia sulcata (Fernald) Harper -- not accepted
  Micranthes gaspensis (Fernald) Small -- accepted -- alpine saxifrage, Gaspe saxifrage
  Milium effusum var. cisatlanticum Fernald -- accepted -- American milletgrass
  Mimulus dentilobus B.L. Rob. & Fernald -- accepted -- sharpwing monkeyflower, tooth-petal monkey-flower, toothpetal monkeyflower
  Mimulus ringens var. colpophilus Fernald -- accepted -- Allegheny monkeyflower, square-stemmed monkey-flower
  Minuartia marcescens (Fernald) House -- accepted -- minuartie de la serpentine, serpentine stitchwort
  Monarda fistulosa ssp. fistulosa var. menthifolia (Graham) Fernald -- not accepted -- mintleaf beebalm, Oswego-tea, wild bergamot
  Monarda fistulosa var. menthifolia (Graham) Fernald -- accepted -- mintleaf bergamot, wild bergamot
  Monarda pringlei Fernald -- accepted
  Montia fontana var. tenerrima (A. Gray) Fernald & Wiegand -- not accepted
  Muhlenbergia frondosa (Poir.) Fernald -- accepted -- wire-stem muhly, wirestem muhly
  Muhlenbergia frondosa f. commutata (Scribn.) Fernald -- accepted
  Muhlenbergia frondosa f. frondosa (Poir.) Fernald -- accepted
  Muhlenbergia mexicana f. ambigua (Torr.) Fernald -- not accepted
  Muhlenbergia mexicana f. setiglumis (S. Watson) Fernald -- not accepted
  Muhlenbergia setosa var. cinnoides (Link) Fernald -- not accepted
  Muhlenbergia sylvatica var. robusta Fernald -- not accepted -- woodland muhly
  Muhlenbergia uniflora (Muhl.) Fernald -- accepted -- bog muhly
  Muhlenbergia uniflora var. terrae-novae Fernald -- not accepted
  Muhlenbergia uniflora var. uniflora (Muhl.) Fernald -- not accepted
  Myosotis virginica var. macrosperma (Engelm.) Fernald -- not accepted
  Myrica gale var. subglabra (A. Chev) Fernald -- not accepted
  Myrica heterophylla var. curtissii (A. Chev) Fernald -- not accepted
  Myriophyllum exalbescens Fernald -- not accepted
  Myriophyllum exalbescens var. magdalenense (Fernald) Á. Löve -- not accepted
  Myriophyllum magdalenense Fernald -- not accepted
  Myriophyllum spicatum ssp. exalbescens (Fernald) Hultén -- not accepted
  Myriophyllum spicatum var. exalbescens (Fernald) Jeps. -- not accepted
  Nelumbo pentapetala (Walter) Fernald -- not accepted
  Nuphar microphylla (Pers.) Fernald -- accepted -- yellow pond-lily
  Nuphar puteora Fernald -- not accepted
  Nuphar X interfluitans Fernald -- not accepted
  Nymphaea odorata var. stenopetala Fernald -- not accepted
  Nymphoides cordata (Elliott) Fernald -- accepted -- little floatingheart
  Nymphozanthus advena (Aiton) Fernald -- not accepted
  Nymphozanthus polysepalus (Engelm.) Fernald -- not accepted
  Nymphozanthus rubrodiscus (Morong) Fernald -- not accepted
  Nymphozanthus sagittifolius (Walter) Fernald -- not accepted
  Nyssa sylvatica var. caroliniana (Poir.) Fernald -- not accepted
  Nyssa sylvatica var. dilatata Fernald -- not accepted
  Nyssa sylvatica var. typica Fernald -- not accepted
  Oenothera cruciata var. sabulonensis Fernald -- not accepted
  Oenothera cruciata var. stenopetala (E.P. Bicknell) Fernald -- not accepted
  Oenothera fruticosa var. microcarpa Fernald -- not accepted
  Oenothera fruticosa var. unguiculata Fernald -- not accepted
  Oenothera parviflora var. oakesiana (A. Gray) Fernald -- not accepted
  Oenothera tetragona var. hybrida (Michx.) Fernald -- not accepted
  Oenothera tetragona var. latifolia (Rydb.) Fernald -- not accepted
  Ophioglossum pycnostichum (Fernald) Á. Löve & D. Löve -- not accepted
  Ophioglossum vulgatum var. pycnostichum Fernald -- not accepted
  Orobanche sedii (Suksd.) Fernald -- not accepted
  Orobanche terrae-novae Fernald -- not accepted
  Orobanche uniflora var. terrae-novae (Fernald) Achey -- not accepted
  Osmorhiza longistylis var. villicaulis Fernald -- not accepted
  Osmorhiza obtusa (J.M. Coult. & Rose) Fernald -- not accepted
  Ostrya virginiana var. lasia Fernald -- not accepted
  Oxalis acetosella var. rhodantha (Fernald) R. Knuth -- not accepted
  Oxypolis canbyi (J.M. Coult. & Rose) Fernald -- accepted -- Canby's cowbane, Canby's dropwort
  Oxytropis campestris var. johannensis Fernald -- accepted -- Johann's locoweed
  Oxytropis campestris var. terrae-novae (Fernald) Barneby -- not accepted
  Oxytropis coronaminis Fernald -- not accepted
  Oxytropis gaspensis Fernald & S.L. Kelsey -- not accepted
  Oxytropis hudsonica (Greene) Fernald -- not accepted
  Oxytropis johannensis (Fernald) Fernald -- not accepted
  Oxytropis leucantha var. gaspensis (Fernald & S.L. Kelsey) B. Boivin -- not accepted
  Oxytropis pygmaea (Pall.) Fernald -- not accepted
  Oxytropis terrae-novae Fernald -- not accepted
  Panicularia fluitans var. angustata (Vasey ex Fernald) Vasey ex Farw. -- not accepted
  Panicum agrostoides var. condensum (Nash) Fernald -- not accepted
  Panicum agrostoides var. ramosius (C. Mohr) Fernald -- not accepted
  Panicum anceps var. rhizomatum (Hitchc. & Chase) Fernald -- not accepted
  Panicum benneri Fernald -- not accepted
  Panicum columbianum var. oricola (Hitchc. & Chase) Fernald -- not accepted
  Panicum commonsianum var. addisonii (Nash) Fernald -- not accepted
  Panicum commutatum var. ashei (T.G. Pearson ex Ashe) Fernald -- not accepted
  Panicum commutatum var. joorii (Vasey) Fernald -- not accepted
  Panicum depauperatum f. cryptostachys Fernald -- not accepted
  Panicum depauperatum f. psilophyllum Fernald -- not accepted
  Panicum depauperatum var. psilophyllum Fernald -- not accepted
  Panicum dichotomiflorum var. bartowense (Scribn. & Merr.) Fernald -- not accepted -- fall panicgrass, fall panicum, western witchgrass
  Panicum dichotomiflorum var. geniculatum (Alph. Wood) Fernald -- not accepted
  Panicum dichotomiflorum var. imperiorum Fernald -- not accepted
  Panicum glutinoscabrum Fernald -- not accepted
  Panicum lancearium var. patulum (Scribn. & Merr.) Fernald -- not accepted
  Panicum lanuginosum var. fasciculatum (Torr.) Fernald -- not accepted
  Panicum lanuginosum var. implicatum (Scribn.) Fernald -- not accepted
  Panicum lanuginosum var. lindheimeri (Nash) Fernald -- not accepted
  Panicum lanuginosum var. septentrionale (Fernald) Fernald -- not accepted
  Panicum laxiflorum var. strictirameum (Hitchc. & Chase) Fernald -- not accepted
  Panicum lindheimeri var. fasciculatum (Torr.) Fernald -- not accepted
  Panicum lindheimeri var. implicatum (Scribn.) Fernald -- not accepted
  Panicum lindheimeri var. septentrionale Fernald -- not accepted
  Panicum lindheimeri var. typicum Fernald -- not accepted
  Panicum linearifolium var. werneri (Scribn.) Fernald -- not accepted
  Panicum longifolium var. combsii (Scribn. & C.R. Ball) Fernald -- not accepted
  Panicum longifolium var. pubescens (Vasey) Fernald -- not accepted
  Panicum lucidum var. opacum Fernald -- not accepted
  Panicum mattamuskeetense var. clutei (Nash) Fernald -- not accepted
  Panicum meridionale var. albemarlense (Ashe) Fernald -- not accepted
  Panicum mundum Fernald -- not accepted
  Panicum oligosanthes var. helleri (Nash) Fernald -- not accepted
  Panicum oligosanthes var. scribnerianum (Nash) Fernald -- not accepted
  Panicum philadelphicum var. tuckermanii (Fernald) Steyerm. & Schmoll -- not accepted
  Panicum recognitum Fernald -- not accepted
  Panicum strictum var. psilophyllum (Fernald) Farw. -- not accepted
  Panicum tuckermanii Fernald -- not accepted
  Panicum villosissimum var. pseudopubescens (Nash) Fernald -- not accepted
  Panicum villosissimum var. scoparioides (Ashe) Fernald -- not accepted
  Parnassia montanensis Fernald & Rydb. -- not accepted
  Parnassia multiseta (Ledeb.) Fernald -- not accepted
  Parnassia palustris ssp. neogaea (Fernald) Hultén -- not accepted
  Parnassia palustris var. montanensis (Fernald & Rydb. ex Rydb.) C.L. Hitchc. -- not accepted -- mountain grass of Parnassus, northern grass-of-Parnassus
  Parnassia palustris var. neogaea Fernald -- not accepted
  Paronychia argyrocoma ssp. albimontana (Fernald) Maguire -- not accepted
  Paronychia argyrocoma var. albimontana Fernald -- not accepted -- silverling
  Paronychia chartacea Fernald -- accepted -- paper nailwort, papery whitlow-wort
  Paronychia chartacea ssp. chartacea Fernald -- not accepted -- paper nailwort, Rocky Mountain nailwort
  Paronychia chartacea var. chartacea Fernald -- accepted -- paper nailwort
  Paronychia fastigiata (Raf.) Fernald -- accepted -- clusterstem nailwort, hairy forked nailwort
  Paronychia fastigiata var. fastigiata (Raf.) Fernald -- accepted -- hairy forked nailwort
  Paronychia fastigiata var. nuttallii (Small) Fernald -- accepted -- hairy forked nailwort
  Paronychia fastigiata var. paleacea Fernald -- not accepted -- hairy forked nailwort
  Paronychia fastigiata var. pumila (Alph. Wood) Fernald -- accepted -- mountain nailwort
  Paronychia fastigiata var. typica Fernald -- not accepted
  Paspalum bifidum var. projectum Fernald -- not accepted
  Paspalum ciliatifolium var. muehlenbergii (Nash) Fernald -- not accepted
  Paspalum ciliatifolium var. muhlenbergii (Nash) Fernald -- not accepted
  Paspalum ciliatifolium var. stramineum (Nash) Fernald -- not accepted
  Paspalum laeve var. circulare (Nash) Fernald -- not accepted -- field paspalum
  Paspalum setaceum var. calvescens Fernald -- not accepted
  Passiflora lutea var. glabriflora Fernald -- not accepted
  Pectis cylindrica (Fernald) Rydb. -- accepted -- Sonoran chinchweed, Sonoran cinchweed
  Pectis filipes var. subnuda Fernald -- accepted -- fivebract chinchweed, fivebract cinchweed
  Pectis postrata var. cylindrica Fernald -- not accepted
  Pectis prostrata var. cylindrica Fernald -- not accepted
  Pectis prostrata var. urceolata Fernald -- not accepted
  Pedicularis canadensis ssp. canadensis var. dobbsii Fernald -- not accepted -- Canadian lousewort
  Pedicularis canadensis var. dobbsii Fernald -- not accepted
  Peltandra luteospadix Fernald -- not accepted
  Peltandra virginica ssp. luteospadix (Fernald) W.H. Blackw. & K.P. Blackw. -- not accepted
  Penstemon tubiflorus var. achoreus Fernald -- not accepted -- white wand beardtongue
  Peramium ophioides (Fernald) Rydb. -- not accepted
  Persicaria hydropiperoides var. breviciliata (Fernald) C.F. Reed -- not accepted
  Persicaria hydropiperoides var. euronotora (Fernald) C.F. Reed -- not accepted
  Persicaria puritanorum (Fernald) Soják -- accepted
  Persicaria setacea var. interjecta (Fernald) C.F. Reed -- not accepted
  Persicaria setacea var. tonsa (Fernald) C.F. Reed -- not accepted
  Petalostemon occidentalis (A. Heller) Fernald -- not accepted
  Phacelia dubia var. fallax (Fernald) Gleason -- not accepted
  Phacelia dubia var. interior Fernald -- accepted -- interior phacelia
  Phaseolus polystachios var. aquilonius Fernald -- not accepted
  Phippsia coarctata (Fernald & Weath.) Á. Löve -- not accepted
  Phippsia laurentiana (Fernald & Weath.) Á. Löve & D. Löve -- not accepted
  Phlox bifida var. cedaria (Brand) Fernald -- not accepted
  Phlox maculata var. purpurea Fernald -- not accepted
  Phragmites communis var. berlandieri (E. Fourn.) Fernald -- not accepted
  Phryma leptostachya var. confertifolia Fernald -- not accepted
  Phyla lanceolata var. recognita (Fernald & Griscom) Soper -- not accepted
  Phyllites japonica var. americana (Fernald) Á. Löve & D. Löve -- not accepted
  Phyllitis japonica ssp. americana (Fernald) Á. Löve & D. Löve -- not accepted
  Phyllitis scolopendrium var. americana Fernald -- not accepted
  Physalis barbadensis var. glabra (Michx.) Fernald -- not accepted
  Physalis heterophylla var. clavipes Fernald -- not accepted
  Physalis saltillensis Fernald -- not accepted
  Physostegia aboriginorum Fernald -- not accepted
  Physostegia angustifolia Fernald -- accepted -- narrowleaf dragonhead, narrowleaf false dragonhead
  Physostegia denticulata sensu Fernald, non (Aiton) Britton -- not accepted
  Physostegia virginiana var. granulosa (Fassett) Fernald -- not accepted -- physostégie de Virginie variété granuleuse
  Pilea pumila var. deamii (Lunell) Fernald -- not accepted -- Deam's clearweed
  Pityopsis adenolepis (Fernald) Semple -- not accepted -- Carolina silkgrass
  Pityopsis aspera var. adenolepis (Fernald) Semple & F.D. Bowers -- accepted -- Carolina silkgrass
  Pityopsis graminifolia var. latifolia (Fernald) Semple & F.D. Bowers -- accepted -- narrowleaf silkgrass
  Plantago juncoides var. californica Fernald -- not accepted
  Plantago juncoides var. decipiens (Barneoud) Fernald -- not accepted
  Plantago juncoides var. glauca (Hornem.) Fernald -- not accepted
  Plantago juncoides var. laurentiana Fernald -- not accepted
  Plantago maritima var. californica (Fernald) Pilg. -- accepted -- California goose tongue
  Plantago oliganthos var. fallax Fernald -- not accepted
  Plantago virginica var. viridescens Fernald -- not accepted
  Platanthera albida var. straminea (Fernald) Luer -- not accepted -- platanthčre blanchâtre variété jaune-paille, vanilla scented bog orchid, vanilla-scent bog orchid
  Platanthera lacera var. terrae-novae (Fernald) Luer -- not accepted -- green fringed orchid
  Platanus glabrata Fernald -- not accepted
  Platanus occidentalis var. glabrata (Fernald) Sarg. -- not accepted
  Pluchea odorata var. succulenta (Fernald) Cronquist -- accepted -- sweetscent
  Pluchea purpurascens var. succulenta Fernald -- not accepted
  Poa gaspensis Fernald -- not accepted -- Gaspe Peninsula bluegrass
  Poa labradorica Fernald -- not accepted
  Poa paludigena Fernald & Wiegand -- accepted -- bog bluegrass
  Poa saltuensis Fernald & Wiegand -- accepted -- oldpasture bluegrass
  Poa saltuensis ssp. saltuensis Fernald & Wiegand -- accepted
  Poa saltuensis var. microlepis Fernald & Wiegand -- not accepted
  Poa saltuensis var. saltuensis Fernald & Wiegand -- not accepted
  Poa X gaspensis Fernald -- accepted
  Pogonia bifaria (Fernald) P.M. Br. & Wunderlin -- not accepted
  Pogonia ophioglossoides var. brachypogon Fernald -- not accepted
  Polemonium longii Fernald -- accepted -- Long's Jacob's-ladder
  Polygala cruciata var. aquilonia Fernald & B.G. Schub. -- accepted -- drumheads
  Polygala verticillata var. dolichoptera Fernald -- not accepted -- whorled milkwort
  Polygala verticillata var. isocycla Fernald -- accepted -- whorled milkwort
  Polygonella polygama var. croomii (Chapm.) Fernald -- accepted -- October flower
  Polygonum arifolium var. lentiforme Fernald & Griscom -- not accepted
  Polygonum arifolium var. pubescens (R. Keller) Fernald -- not accepted
  Polygonum cilinode var. laevigatum Fernald -- not accepted
  Polygonum hydropiperoides var. breviciliatum Fernald -- not accepted
  Polygonum hydropiperoides var. digitatum Fernald -- not accepted
  Polygonum hydropiperoides var. euronotorum Fernald -- not accepted
  Polygonum minus var. subcontinuum (Meisn.) Fernald -- not accepted
  Polygonum pensylvanicum var. genuinum Fernald -- not accepted
  Polygonum pensylvanicum var. laevigatum Fernald -- not accepted
  Polygonum puritanorum Fernald -- not accepted
  Polygonum robustius (Small) Fernald -- not accepted -- stout smartweed
  Polygonum sagittatum var. gracilentum Fernald -- not accepted
  Polygonum setaceum var. interjectum Fernald -- not accepted -- bog smartweed
  Polygonum setaceum var. tonsum Fernald -- not accepted
  Polygonum tenue var. protrusum Fernald -- not accepted -- pleatleaf knotweed
  Polygonum virginianum var. glaberrimum (Fernald) Steyerm. -- not accepted
  Polypodium vulgare var. intermedium (Hook. & Arn.) Fernald -- not accepted
  Polystichum braunii ssp. purshii (Fernald) Calder & Roy L. Taylor -- not accepted
  Polystichum braunii var. purshii Fernald -- not accepted
  Polystichum mohrioides var. lemmonii (Underw.) Fernald -- not accepted
  Polystichum mohrioides var. scopulinum (D.C. Eaton) Fernald -- not accepted
  Potamogeton alpinus var. subellipticus (Fernald) Ogden -- not accepted
  Potamogeton berchtoldii var. colpophilus (Fernald) Fernald -- not accepted
  Potamogeton berchtoldii var. lacunatus (Hagstr.) Fernald -- not accepted
  Potamogeton berchtoldii var. polyphyllus (Morong) Fernald -- not accepted
  Potamogeton berchtoldii var. tenuissimus (Mert. & W.D.J. Koch) Fernald -- not accepted
  Potamogeton bicupulatus Fernald -- accepted -- snailseed pondweed
  Potamogeton bupleuroides Fernald -- not accepted
  Potamogeton capillaceus var. atripes Fernald -- not accepted
  Potamogeton clystocarpus Fernald -- accepted -- little Aguja pondweed
  Potamogeton epihydrus var. nuttallii (Cham. & Schltdl.) Fernald -- not accepted
  Potamogeton fibrillosus Fernald -- not accepted
  Potamogeton foliosus ssp. fibrillosus (Fernald) R.R. Haynes & Hellq. -- accepted -- leafy pondweed
  Potamogeton foliosus var. fibrillosus (Fernald) R.R. Haynes & Reveal -- not accepted -- leafy pondweed
  Potamogeton foliosus var. genuinus Fernald -- not accepted
  Potamogeton foliosus var. macellus Fernald -- not accepted
  Potamogeton longiligulatus Fernald -- not accepted
  Potamogeton perfoliatus ssp. bupleuroides (Fernald) Hultén -- not accepted
  Potamogeton perfoliatus var. bupleuroides (Fernald) Farw. -- not accepted
  Potamogeton porsildiorum Fernald -- not accepted
  Potamogeton porteri Fernald -- not accepted
  Potamogeton pusillus var. minor (Biv.) Fernald & B.G. Schub. -- not accepted
  Potamogeton pusillus var. rutiloides (Fernald) B. Boivin -- not accepted
  Potamogeton strictifolius var. rutiloides Fernald -- not accepted
  Potamogeton strictifolius var. typicus Fernald -- not accepted
  Potamogeton tennesseensis Fernald -- accepted -- Tennessee pondweed
  Potamogeton zosterifolius ssp. zosteriformis (Fernald) Hultén -- not accepted
  Potamogeton zosteriformis Fernald -- accepted -- flat-stem pondweed, flatstem pondweed
  Potentilla canadensis var. villosissima Fernald -- not accepted -- dwarf cinquefoil
  Potentilla fruticosa var. villosissima Fernald -- not accepted
  Potentilla gracilis var. pulcherrima (Lehm.) Fernald -- not accepted
  Potentilla hyparctica var. elatior (Abrom.) Fernald -- not accepted
  Potentilla norvegica var. labradorica (Lehm.) Fernald -- not accepted
  Potentilla palustris var. parvifolia (Raf.) Fernald & Long -- not accepted
  Potentilla simplex var. argyrisma Fernald -- not accepted
  Potentilla simplex var. calvescens Fernald -- not accepted
  Potentilla simplex var. typica Fernald -- not accepted
  Potentilla usticapensis Fernald -- not accepted
  Prenanthes altissima var. cinnamomea Fernald -- not accepted
  Prenanthes trifoliata (Cass.) Fernald -- not accepted
  Prenanthes trifoliolata (Cass.) Fernald -- accepted -- dwarf rattlesnakeroot, gall of the earth
  Prenanthes trifoliolata var. nana (Bigelow) Fernald -- not accepted
  Primula farinosa var. macropoda Fernald -- not accepted
  Primula hunnewellii Fernald -- not accepted -- North Rim primrose
  Primula intercedens Fernald -- not accepted
  Primula laurentiana Fernald -- accepted -- birdeye primrose
  Primula mistassinica var. intercedens (Fernald) B. Boivin -- not accepted
  Primula mistassinica var. macropoda (Fernald) B. Boivin -- not accepted
  Primula mistassinica var. noveboracensis Fernald -- not accepted
  Primula tschuktschorum var. arctica (E.A. Busch) Fernald -- not accepted
  Proserpinaca amblyogona (Fernald) Small -- not accepted
  Proserpinaca palustris var. amblyogona Fernald -- accepted -- marsh mermaidweed
  Proserpinaca palustris var. crebra Fernald & Griscom -- accepted -- marsh mermaidweed
  Prunella vulgaris ssp. aleutica (Fernald) Hultén -- accepted -- Aleutian selfheal
  Prunella vulgaris var. aleutica Fernald -- not accepted
  Prunella vulgaris var. atropurpurea Fernald -- not accepted
  Prunella vulgaris var. calvescens Fernald -- not accepted
  Prunella vulgaris var. lanceolata (W. Bartram) Fernald -- not accepted
  Pseudognaphalium obtusifolium ssp. praecox (Fernald) Kartesz -- not accepted -- rabbittobacco
  Pseudorchis albida ssp. straminea (Fernald) Á. Löve & D. Löve -- accepted -- vanilla-scented bog orchid
  Pseudorchis straminea (Fernald) Soják -- not accepted -- vanilla-scented bog orchid
  Psilocarya scirpoides var. grimesii Fernald & Griscom -- not accepted
  Pteretis pensylvanica (Willd.) Fernald -- not accepted
  Pteridium aquilinum var. lanuginosum (Bong.) Fernald -- not accepted
  Pteroglossaspis ecristata (Fernald) Rolfe -- accepted -- eulophia, giant orchid
  Puccinellia arctica (Hook.) Fernald & Weath. -- accepted -- arctic alkaligrass
  Puccinellia coarctata Fernald & Weath. -- not accepted
  Puccinellia distans var. tenuis (Uechtr.) Fernald & Weath. -- not accepted
  Puccinellia laurentiana Fernald & Weath. -- not accepted -- Tracadigash Mountain alkaligrass
  Puccinellia longiglumis (Fernald & Weath.) Raymond ex Bowden -- not accepted
  Puccinellia lucida Fernald & Weath. -- not accepted -- shining alkaligrass
  Puccinellia macra Fernald & Weath. -- not accepted -- Bonaventure Island alkaligrass
  Puccinellia nutkaensis (J. Presl) Fernald & Weath. -- accepted -- Nootka alkaligrass
  Puccinellia paupercula (Holm) Fernald & Weath. -- not accepted
  Puccinellia paupercula var. alaskana (Scribn. & Merr.) Fernald & Weath. -- not accepted
  Puccinellia paupercula var. longiglumis Fernald & Weath. -- not accepted
  Puccinellia paupercula var. paupercula (Holm) Fernald & Weath. -- not accepted
  Puccinellia rupestris (With.) Fernald & Weath. -- accepted -- British alkaligrass
  Puccinellia vaginata (Lange) Fernald & Weath. -- accepted -- sheathed alkaligrass
  Puccinellia vaginata var. vaginata (Lange) Fernald & Weath. -- not accepted -- arctic tussock alkaligrass
  Pycnanthemum beadlei (Small) Fernald -- accepted -- Beadle's mountainmint
  Pycnanthemum incanum var. loomisii (Nutt.) Fernald -- not accepted
  Pycnanthemum incanum var. puberulum (E. Grant & Epling) Fernald -- accepted -- hoary mountainmint
  Pycnanthemum monotrichum Fernald -- accepted -- onehair mountainmint
  Pycnanthemum pycnanthemoides (Leavenw.) Fernald -- accepted -- southern mountainmint
  Pycnanthemum pycnanthemoides var. pycnanthemoides (Leavenw.) Fernald -- accepted -- southern mountainmint
  Pycnanthemum pycnanthemoides var. viridifolium Fernald -- accepted -- southern mountainmint
  Pycnanthemum umbratile Fernald -- not accepted
  Pycnanthemum virginianum (L.) Rob. & Fernald -- accepted -- Virginia mountain-mint, Virginia mountainmint
  Pycnanthemum viridiflorum Fernald -- not accepted
  Pycnanthemum viridifolium (Fernald) E. Grant & Epling -- not accepted
  Pyrola asarifolia var. incarnata (DC.) Fernald -- not accepted
  Pyrola asarifolia var. purpurea (Bunge) Fernald -- not accepted
  Pyrola chlorantha var. convoluta (W.P.C. Barton) Fernald -- not accepted
  Pyrola chlorantha var. paucifolia Fernald -- not accepted
  Pyrola rotundifolia var. americana (Sweet) Fernald -- not accepted
  Pyrola virens var. convoluta (W.P.C. Barton) Fernald -- not accepted
  Pyrola virens var. saximontana Fernald -- not accepted
  Pyrus coronaria var. dasycalyx (Rehder) Fernald -- not accepted
  Pyrus coronaria var. lancifolia (Rehder) Fernald -- not accepted
  Pyrus decora var. groenlandica (C.K. Schneid.) Fernald -- not accepted
  Pyrus mixta Fernald -- not accepted
  Pyrus X fallax (C.K. Schneid.) Fernald -- not accepted
  Pyrus X jackii (Rehder) Fernald -- not accepted
  Quercus rubra var. ambigua (A. Gray) Fernald -- not accepted -- northern red oak
  Ranunculus abortivus ssp. acrolasius (Fernald) B.M. Kapoor & Á. Löve -- not accepted
  Ranunculus abortivus var. acrolasius Fernald -- not accepted
  Ranunculus abortivus var. eucyclus Fernald -- not accepted
  Ranunculus abortivus var. indivisus Fernald -- not accepted
  Ranunculus abortivus var. typicus Fernald -- not accepted
  Ranunculus cymbalaria ssp. saximontanus (Fernald) Thorne -- not accepted
  Ranunculus cymbalaria var. saximontanus Fernald -- not accepted -- Rocky Mountain buttercup
  Ranunculus fascicularis var. apricus (Greene) Fernald -- not accepted
  Ranunculus gmelinii var. prolificus (Fernald) H. Hara -- not accepted
  Ranunculus hispidus var. falsus Fernald -- not accepted
  Ranunculus micranthus var. cymbalistes (Greene) Fernald -- not accepted
  Ranunculus micranthus var. delitescens (Greene) Fernald -- not accepted
  Ranunculus pedatifidus var. leiocarpus (Trautv.) Fernald -- not accepted
  Ranunculus repens var. pleniflorus Fernald -- not accepted
  Ranunculus septentrionalis var. caricetorum (Greene) Fernald -- not accepted
  Rhamnus caroliniana var. mollis Fernald -- not accepted
  Rhexia mariana var. leiosperma Fernald & Griscom -- not accepted
  Rhexia mariana var. ventricosa (Fernald & Griscom) Kral & Bostick -- accepted -- Maryland meadowbeauty
  Rhexia ventricosa Fernald & Griscom -- not accepted
  Rhus aromatica var. arenaria (Greene) Fernald -- not accepted -- fragrant sumac
  Rhus radicans var. malacotrichocarpa (A.H. Moore) Fernald -- not accepted
  Rhynchospora careyana Fernald -- accepted -- broadfruit horned beaksedge
  Rhynchospora cephalantha var. pleiocephala Fernald & Gale -- not accepted -- bunched beaksedge
  Rhynchospora chalarocephala Fernald & Gale -- accepted -- loosehead beaksedge
  Rhynchospora chalarocephala var. chalarocephala Fernald & Gale -- not accepted -- loosehead beaksedge
  Rhynchospora corniculata var. interior Fernald -- not accepted -- shortbristle horned beaksedge
  Rhynchospora inundata (Oakes) Fernald -- accepted -- narrowfruit horned beaksedge
  Rhynchospora macrostachya var. colpophila Fernald & Gale -- not accepted -- tall horned beaksedge
  Rhynchospora perplexa var. virginiana Fernald -- not accepted -- Virginia beaksedge
  Ribes cynosbati var. atrox Fernald -- not accepted
  Ribes cynosbati var. glabratum Fernald -- not accepted
  Ribes hirtellum var. calcicola (Fernald) Fernald -- not accepted
  Ribes hirtellum var. saxosum (Hook.) Fernald -- not accepted
  Ribes oxyacanthoides var. calcicola Fernald -- not accepted
  Ribes triste var. albinervium (Michx.) Fernald -- not accepted
  Rorippa islandica var. microcarpa (Regel) Fernald -- not accepted
  Rorippa palustris var. reptabunda (Fernald) Stuckey -- not accepted
  Rosa johannensis Fernald -- not accepted
  Rosa nutkana var. hispida Fernald -- not accepted -- bristly Nootka rose
  Rosa spaldingii var. hispida (Fernald) G.N. Jones -- not accepted
  Rosa virginiana var. lamprophylla (Rydb.) Fernald -- not accepted -- Virginia rose
  Rosa williamsii Fernald -- not accepted -- rosier de Williams
  Rotala ramosior var. interior Fernald & Griscom -- not accepted
  Rotala ramosior var. typica Fernald & Griscom -- not accepted
  Rubus aculiferus Fernald -- not accepted -- thorny dewberry
  Rubus adenocaulis Fernald -- not accepted -- glandstem dewberry
  Rubus adjacens Fernald -- not accepted -- peaty dewberry
  Rubus akermanii Fernald -- not accepted
  Rubus allegheniensis var. gravesii Fernald -- not accepted -- Graves' blackberry
  Rubus allegheniensis var. neoscoticus (Fernald) L.H. Bailey -- not accepted
  Rubus allegheniensis var. populifolius Fernald -- not accepted
  Rubus ambigens Fernald -- not accepted
  Rubus arcuans Fernald & H. St. John -- not accepted -- wand dewberry
  Rubus armatus (Fernald) L.H. Bailey -- not accepted
  Rubus bracteolifer Fernald -- not accepted
  Rubus bracteoliferus Fernald -- not accepted
  Rubus cathartium Fernald -- not accepted
  Rubus cuneifolius var. subellipticus Fernald -- not accepted
  Rubus cupressorum Fernald -- not accepted
  Rubus defectionis Fernald -- not accepted -- eclipse blackberry
  Rubus dissitiflorus Fernald -- not accepted
  Rubus hispidus var. obovalis (Michx.) Fernald -- not accepted
  Rubus hypolasius Fernald -- not accepted -- pineland dewberry
  Rubus idaeus var. arizonicus (Greene) Fernald -- not accepted
  Rubus idaeus var. canadensis Richardson ex Fernald -- not accepted
  Rubus idaeus var. caudatus (B.L. Rob. & Schrenk) Fernald & B.G. Schub. -- not accepted
  Rubus idaeus var. egglestonii (Blanch.) Fernald -- not accepted
  Rubus idaeus var. eucyclus Fernald & Weath. -- not accepted
  Rubus idaeus var. heterolasius Fernald -- not accepted
  Rubus idaeus var. melanotrachys (Focke) Fernald -- not accepted
  Rubus idaeus var. peramoenus (Greene) Fernald -- not accepted
  Rubus imperiorum Fernald -- not accepted
  Rubus kennedyanus Fernald -- not accepted -- Kennedy's blackberry
  Rubus laevior (L.H. Bailey) Fernald -- not accepted
  Rubus longii Fernald -- not accepted -- Long's blackberry
  Rubus longipes Fernald -- not accepted
  Rubus odoratus var. malachophyllus Fernald -- not accepted -- purpleflowering raspberry
  Rubus paludivagus Fernald -- not accepted -- Cape Cod blackberry
  Rubus parviflorus var. bifarius Fernald -- not accepted
  Rubus parviflorus var. heteradenius Fernald -- not accepted
  Rubus parviflorus var. hypomalacus Fernald -- not accepted
  Rubus parviflorus var. parvifolius (A. Gray) Fernald -- not accepted
  Rubus pernagaeus Fernald -- not accepted -- Smithfield blackberry
  Rubus plexus Fernald -- not accepted -- tangled dewberry
  Rubus recurvicaulis var. armatus Fernald -- not accepted
  Rubus sceleratus Brainerd ex Fernald -- not accepted -- Androscoggin River blackberry
  Rubus severus Brainerd ex Fernald -- not accepted -- harsh dewberry
  Rubus sewardianus Fernald -- not accepted -- Seward's blackberry
  Rubus spiculosus Fernald -- not accepted -- domeshape dewberry
  Rubus strigosus var. tonsus (Fernald) L.H. Bailey -- not accepted
  Rubus subinnoxius Fernald -- not accepted
  Rubus tholiformis Fernald -- not accepted -- domeshape dewberry
  Rubus trifrons var. pudens (L.H. Bailey) Fernald -- not accepted
  Rubus uliginosus Fernald -- not accepted
  Rubus X aculifer Fernald (pro sp.) -- accepted -- thorny dewberry
  Rubus X adenocaulis Fernald (pro sp.) -- accepted
  Rubus X adjacens Fernald (pro sp.) -- accepted -- peaty dewberry
  Rubus X akermanii Fernald (pro sp.) -- accepted
  Rubus X ambigens Fernald (pro sp.) -- accepted
  Rubus X arcuans Fernald & H. St. John (pro sp.) -- accepted -- wand dewberry
  Rubus X bracteolifer Fernald (pro sp.) -- accepted
  Rubus X hypolasius Fernald (pro sp.) -- accepted -- pineland dewberry
  Rubus X laevior (L.H. Bailey) Fernald (pro sp.) -- accepted
  Rubus X severus Brainerd ex Fernald (pro sp.) -- accepted -- harsh dewberry
  Rubus X spiculosus Fernald (pro sp.) -- accepted -- domeshape dewberry
  Rubus X tholiformis Fernald (pro sp.) -- accepted -- domeshape dewberry
  Rudbeckia hirta var. brittonii (Small) Fernald -- not accepted
  Rudbeckia hirta var. corymbifera Fernald -- not accepted
  Rudbeckia hirta var. monticola (Small) Fernald -- not accepted
  Rudbeckia hirta var. sericea (T.V. Moore) Fernald -- not accepted
  Rudbeckia laciniata var. gaspereauensis Fernald -- not accepted -- greenhead coneflower
  Rudbeckia laciniata var. heterophylla (Torr. & A. Gray) Fernald & B.G. Schub. -- accepted
  Rudbeckia serotina var. corymbifera (Fernald) Fernald & B.G. Schub. -- not accepted
  Rudbeckia serotina var. lanceolata (Bisch.) Fernald & B.G. Schub. -- not accepted
  Rudbeckia serotina var. sericea (T.V. Moore) Fernald & B.G. Schub. -- not accepted
  Rudbeckia triloba var. beadlei (Small) Fernald -- not accepted
  Ruellia caroliniensis ssp. ciliosa var. cinerascens (Fernald) Kartesz & Gandhi -- not accepted -- Carolina wild petunia
  Ruellia caroliniensis ssp. ciliosa var. heteromorpha (Fernald) R.W. Long -- not accepted -- Carolina wild petunia
  Ruellia caroliniensis var. cheloniformis Fernald -- not accepted
  Ruellia caroliniensis var. cinerascens (Fernald) Kartesz & Gandhi -- not accepted -- Carolina wild petunia
  Ruellia caroliniensis var. dentata (Nees) Fernald -- not accepted
  Ruellia caroliniensis var. heteromorpha (Fernald) R.W. Long -- not accepted -- Carolina wild petunia
  Ruellia caroliniensis var. membranacea Fernald -- not accepted
  Ruellia caroliniensis var. nanella Fernald -- not accepted
  Ruellia caroliniensis var. salicina Fernald -- not accepted
  Ruellia caroliniensis var. semicalva Fernald -- not accepted
  Ruellia ciliosa var. cinerascens Fernald -- not accepted
  Ruellia heteromorpha Fernald -- accepted -- Carolina wild petunia
  Ruellia humilis var. calvescens Fernald -- not accepted
  Ruellia humilis var. expansa Fernald -- not accepted
  Ruellia humilis var. frondosa Fernald -- not accepted
  Ruellia humilis var. longiflora (A. Gray) Fernald -- not accepted
  Ruellia pedunculata ssp. pinetorum (Fernald) R.W. Long -- not accepted -- stalked wild petunia
  Ruellia pinetorum Fernald -- accepted -- stalked wild petunia
  Ruellia purshiana Fernald -- accepted -- Pursh's wild petunia
  Ruppia maritima var. exigua Fernald & Wiegand -- not accepted
  Ruppia maritima var. subcapitata Fernald & Wiegand -- not accepted
  Sabatia campanulata var. gracilis (Michx.) Fernald -- not accepted
  Sabatia dodecandra var. foliosa (Fernald) Wilbur -- accepted -- marsh rose gentian, marsh rosegentian
  Sabatia dodecandra var. kennedyana (Fernald) H.E. Ahles -- not accepted
  Sabatia foliosa Fernald -- not accepted
  Sabatia kennedyana Fernald -- accepted -- Plymouth rose gentian
  Saccharum coarctatum (Fernald) R.D. Webster -- accepted -- compressed plumegrass
  Sacciolepis striata f. gibba (Elliott) Fernald -- not accepted
  Sagina micrantha (Bunge) Fernald -- not accepted
  Sagina saginoides var. hesperia Fernald -- not accepted
  Sagittaria graminea ssp. weatherbiana (Fernald) R.R. Haynes & Hellq. -- accepted -- Weatherby's arrowhead
  Sagittaria graminea var. weatherbiana (Fernald) Bogin -- not accepted -- Weatherby's arrowhead
  Sagittaria planipes Fernald -- not accepted
  Sagittaria weatherbiana Fernald -- not accepted
  Salicornia europaea var. pachystachya (W.D.J. Koch) Fernald -- not accepted
  Salicornia europaea var. prostrata auct. non (Pall.) Fernald -- not accepted
  Salicornia europaea var. simplex (Pursh) Fernald -- not accepted
  Salix ancorifera Fernald -- not accepted
  Salix arctica var. antiplasta (C.K. Schneid.) Fernald -- not accepted
  Salix bebbiana var. capreifolia (Fernald) Fernald -- not accepted
  Salix bebbiana var. luxurians (Fernald) Fernald -- not accepted
  Salix bebbiana var. projecta (Fernald) C.K. Schneid. -- not accepted
  Salix calcicola Fernald & Wiegand -- accepted -- woolly willow
  Salix calcicola var. calcicola Fernald & Wiegand -- accepted -- woolly willow
  Salix chlorolepis Fernald -- accepted -- green-scaled willow, greenscale willow, saule ŕ bractées vertes
  Salix coactilis Fernald -- not accepted
  Salix cordata var. abrasa Fernald -- not accepted
  Salix cordifolia var. callicarpaea (Trautv.) Fernald -- not accepted
  Salix cordifolia var. eucycla Fernald -- not accepted
  Salix cordifolia var. intonsa Fernald -- not accepted
  Salix cordifolia var. tonsa Fernald -- not accepted
  Salix exigua var. exterior (Fernald) C.F. Reed -- not accepted
  Salix fuscescens var. hebecarpa Fernald -- not accepted
  Salix glaucophylloides Fernald -- not accepted
  Salix glaucophylloides var. albovestita (C.R. Ball) Fernald -- not accepted
  Salix gracilis var. textoris Fernald -- not accepted
  Salix hebecarpa (Fernald) Fernald -- not accepted
  Salix humilis var. hyporhysa Fernald -- not accepted
  Salix humilis var. microphylla (Andersson) Fernald -- not accepted
  Salix humilis var. rigidiuscula (Andersson) B.L. Rob. & Fernald -- not accepted
  Salix interior var. exterior Fernald -- not accepted
  Salix jejuna Fernald -- accepted -- barren willow
  Salix lanata ssp. calcicola (Fernald & Wiegand) Hultén -- not accepted -- woolly willow
  Salix leiolepis Fernald -- not accepted
  Salix lucida var. intonsa Fernald -- not accepted
  Salix myrtillifolia var. brachypoda Fernald -- not accepted
  Salix myrtilloides var. hypoglauca (Fernald) C.R. Ball -- not accepted
  Salix paraleuca Fernald -- not accepted
  Salix pedicellaris var. hypoglauca Fernald -- not accepted
  Salix pedicellaris var. tenuescens Fernald -- not accepted
  Salix pedunculata Fernald -- not accepted -- blackbract willow
  Salix pyrifolia var. lanceolata (Bebb) Fernald -- not accepted
  Salix reticulata var. semicalva Fernald -- not accepted
  Salix rigida var. angustata (Pursh) Fernald -- not accepted
  Salix rostrata var. capreifolia Fernald -- not accepted
  Salix rostrata var. luxurians Fernald -- not accepted
  Salix rostrata var. perrostrata (Rydb.) Fernald -- not accepted
  Salix rostrata var. projecta Fernald -- not accepted
  Salix serissima (L.H. Bailey) Fernald -- accepted -- autumn willow
  Salix stenocarpa Fernald -- not accepted
  Salix syrticola Fernald -- not accepted
  Salix vestita ssp. leiolepis (Fernald) Argus -- not accepted
  Salix vestita var. psilophylla Fernald & H. St. John -- not accepted
  Salix X amoena Fernald -- accepted -- willow
  Salix X cryptodonta Fernald (pro sp.) -- accepted -- smalltoothed willow
  Salix X hebecarpa (Fernald) Fernald (pro sp.) -- accepted
  Salix X jesupii Fernald -- accepted
  Salix X laurentiana Fernald (pro sp.) -- accepted -- Laurent's willow
  Salix X obtusata Fernald (pro sp.) -- accepted -- obtuse willow
  Salix X paraleuca Fernald (pro sp.) -- not accepted -- willow
  Salix X peasei Fernald (pro sp.) -- accepted -- park willow
  Salix X pedunculata Fernald (pro sp.) -- accepted -- blackbract willow
  Salix X simulans Fernald (pro sp.) -- accepted -- simulans willow
  Salix X wiegandii Fernald -- accepted -- Wiegand's willow
  Salvia ballotiflora var. pinguifolia Fernald -- not accepted
  Salvia chia Fernald -- not accepted
  Salvia disjuncta Fernald -- accepted -- southern Mexican sage
  Salvia miniata Fernald -- accepted -- Belize sage
  Salvia pinguifolia (Fernald) Wooton & Standl. -- accepted -- rock sage
  Salvia ramosissima Fernald -- not accepted
  Salvia setosa Fernald -- accepted
  Sanicula canadensis var. grandis Fernald -- accepted -- Canadian blacksnakeroot
  Sanicula marilandica var. petiolulata Fernald -- not accepted
  Sarracenia purpurea f. heterophylla (Eaton) Fernald -- accepted
  Sarracenia purpurea var. venosa (Raf.) Fernald -- not accepted
  Sassafras albidum var. molle (Raf.) Fernald -- not accepted
  Satureja glabra (Nutt.) Fernald -- not accepted
  Satureja vulgaris var. diminuta (Simon) Fernald & Wiegand -- not accepted
  Satureja vulgaris var. neogaea Fernald -- not accepted
  Saxifraga gaspensis Fernald -- not accepted -- alpine saxifrage
  Saxifraga nivalis var. gaspensis (Fernald) B. Boivin -- not accepted -- saxifrage des neiges variété de la Gaspésie
  Scheuchzeria americana (Fernald) G.N. Jones -- not accepted
  Scheuchzeria palustris ssp. americana (Fernald) Hultén -- not accepted -- Rannoch-rush
  Scheuchzeria palustris var. americana Fernald -- not accepted
  Schizachne purpurascens f. albicans (Fernald) Fernald -- not accepted
  Schizachyrium praematurum (Fernald) C.F. Reed -- not accepted
  Schizachyrium praematurum f. hirtivaginatum (Fernald) C.F. Reed -- not accepted
  Schizachyrium scoparium f. calvescens (Fernald) C.F. Reed -- not accepted
  Schoenoplectus juncoides ssp. purshianus (Fernald) Soják -- not accepted
  Schoenoplectus lacustris ssp. creber (Fernald) Á. Löve & D. Löve -- not accepted
  Schoenoplectus purshianus (Fernald) M.T. Strong -- accepted -- weakstalk bulrush
  Schoenoplectus purshianus var. purshianus (Fernald) M.T. Strong -- accepted -- weakstalk bulrush
  Schoenoplectus purshianus var. williamsii (Fernald) S.G. Smith -- accepted -- weakstalk bulrush
  Schoenoplectus saximontanus (Fernald) J. Raynal -- accepted -- Rocky Mountain bulrush
  Schoenoplectus smithii var. levisetus (Fernald) S.G. Smith -- accepted -- Smith's bulrush
  Schoenoplectus smithii var. setosus (Fernald) S.G. Smith -- accepted -- Smith's bulrush
  Schoenoplectus validus ssp. creber (Fernald) Á. Löve & D. Löve -- not accepted
  Schoenoplectus X steinmetzii (Fernald) S.G. Sm. -- accepted
  Scirpus atrocinctus Fernald -- accepted -- blackgirdle bulrush
  Scirpus atrovirens var. flaccidifolius Fernald -- not accepted
  Scirpus atrovirens var. georgianus (R.M. Harper) Fernald -- not accepted
  Scirpus caespitosus var. delicatulus Fernald -- not accepted
  Scirpus cespitosus var. delicatulus Fernald -- not accepted
  Scirpus cyperinus var. brachypodus (Fernald) Gilly -- not accepted
  Scirpus cyperinus var. condensatus Fernald -- not accepted
  Scirpus cyperinus var. pedicellatus (Fernald) Schuyler -- not accepted
  Scirpus cyperinus var. pelius Fernald -- not accepted
  Scirpus cyperinus var. rubricosus (Fernald) Gilly -- not accepted
  Scirpus expansus Fernald -- accepted -- woodland bulrush
  Scirpus flaccidifolius (Fernald) Schuyler -- accepted -- reclining bulrush
  Scirpus hudsonianus (Michx.) Fernald -- not accepted
  Scirpus juncoides var. williamsii (Fernald) T. Koyama -- not accepted
  Scirpus lacustris ssp. creber (Fernald) T. Koyama -- not accepted
  Scirpus longii Fernald -- accepted -- Long's bulrush
  Scirpus maritimus var. agonus (Fernald) Beetle -- not accepted
  Scirpus microcarpus var. rubrotinctus (Fernald) M.E. Jones -- not accepted
  Scirpus pallidus (Britton) Fernald -- accepted -- cloaked bulrush, pale bulrush
  Scirpus paludosus var. atlanticus Fernald -- not accepted
  Scirpus pedicellatus Fernald -- accepted -- stalked bulrush
  Scirpus pedicellatus var. pullus Fernald -- not accepted
  Scirpus pumilus ssp. rollandii (Fernald) Raymond -- not accepted -- rolland bulrush, scirpe nain sous-espčce de Rolland
  Scirpus pumilus var. rollandii (Fernald) Beetle -- not accepted
  Scirpus purshianus Fernald -- not accepted
  Scirpus rollandii Fernald -- not accepted
  Scirpus rubricosus Fernald -- not accepted
  Scirpus rubrotinctus Fernald -- not accepted
  Scirpus rufus var. neogaeus Fernald -- not accepted
  Scirpus saximontanus Fernald -- not accepted -- Rocky Mountain bulrush
  Scirpus smithii var. setosus Fernald -- not accepted
  Scirpus smithii var. williamsii (Fernald) Beetle -- not accepted
  Scirpus steinmetzii Fernald -- not accepted
  Scirpus supinus var. saximontanus (Fernald) T. Koyama -- not accepted
  Scirpus validus var. creber Fernald -- not accepted
  Scirpus verecundus Fernald -- not accepted
  Scleria ciliata var. elliottii (Chapm.) Fernald -- accepted -- fringed nutrush
  Scleria pauciflora var. kansana Fernald -- not accepted
  Scutellaria elliptica var. hirsuta (Short & Peter) Fernald -- accepted -- hairy skullcap
  Scutellaria glabriuscula Fernald -- accepted -- Georgia skullcap
  Scutellaria nervosa var. ambigua (Nutt.) Fernald -- not accepted
  Scutellaria nervosa var. calvifolia Fernald -- not accepted
  Scutellaria ovata var. rugosa (Alph. Wood) Fernald -- not accepted
  Scutellaria ovata var. versicolor (Nutt.) Fernald -- not accepted
  Scutellaria parvula var. leonardii (Epling) Fernald -- not accepted -- Leonard's skullcap
  Scutellaria X churchilliana Fernald (pro. sp.) -- accepted -- Churchill's skullcap
  Sebastiania fruticosa (Bartram) Fernald -- not accepted -- Gulf Sebastian-bush, Gulf sebastiana
  Senecio aureus var. aquilonius Fernald -- not accepted
  Senecio aureus var. intercursus Fernald -- not accepted
  Senecio congestus ssp. tonsus (Fernald) Á. Löve & D. Löve -- not accepted
  Senecio congestus var. palustris (L.) Fernald -- not accepted
  Senecio congestus var. tonsus Fernald -- not accepted
  Senecio gaspensis var. firmifolius (Greenm.) Fernald -- not accepted
  Senecio obovatus var. elliottii (Torr. & A. Gray) Fernald -- not accepted
  Senecio pauperculus var. balsamitae (Muhl. ex Willd.) Fernald -- not accepted
  Senecio pauperculus var. neoscoticus Fernald -- not accepted
  Senna hebecarpa (Fernald) H.S. Irwin & Barneby -- accepted -- American senna
  Sicyos collinus B.L. Rob. & Fernald -- accepted -- hillside burr cucumber
  Sida inflexa Fernald -- not accepted -- pineland fanpetals
  Silene acaulis var. subacaulescens (F.N. Williams) Fernald & H. St. John -- not accepted -- moss campion, moss catchfly
  Silene antirrhina var. confinis Fernald -- not accepted
  Silene caroliniana var. pensylvanica (Michx.) Fernald -- not accepted
  Silene caroliniana var. wherryi (Small) Fernald -- not accepted
  Silene polypetala (Walter) Fernald & B.G. Schub. -- not accepted -- eastern fringed catchfly, fringed campion
  Sisyrinchium bermudiana var. crebrum (Fernald) B. Boivin -- not accepted
  Sisyrinchium montanum ssp. crebrum (Fernald) Böcher -- not accepted
  Sisyrinchium montanum var. crebrum Fernald -- accepted -- strict blue-eyed grass
  Smilacina racemosa var. cylindrata Fernald -- not accepted
  Smilacina racemosa var. typica Fernald -- not accepted
  Smilax bona-nox var. exauriculata Fernald -- not accepted
  Smilax bona-nox var. hederifolia (Beyr.) Fernald -- not accepted
  Smilax tamnoides var. hispida Fernald -- not accepted
  Solanum erythrotrichum Fernald -- accepted
  Solanum hayesii Fernald -- accepted
  Solanum lignescens Fernald -- accepted
  Solanum plumense Fernald -- accepted
  Solidago altissima var. procera (Aiton) Fernald -- not accepted
  Solidago anticostensis Fernald -- not accepted
  Solidago arguta var. neurolepis (Fernald) Steyerm. -- not accepted -- Atlantic goldenrod
  Solidago bartramiana Fernald -- not accepted
  Solidago bicolor var. tonsa (Fernald) B. Boivin -- not accepted
  Solidago calcicola Fernald -- not accepted -- limestone goldenrod
  Solidago canadensis var. bartramiana (Fernald) Beaudry -- not accepted -- Bartram's goldenrod
  Solidago canadensis var. hargeri Fernald -- accepted -- Canadian goldenrod, Harger's goldenrod
  Solidago chlorolepis Fernald -- not accepted
  Solidago chrysolepis Fernald -- not accepted
  Solidago cutleri Fernald -- not accepted -- Cutler's alpine goldenrod
  Solidago deamii Fernald -- not accepted -- Deam's goldenrod
  Solidago decumbens var. chlorolepis (Fernald) Beaudry -- not accepted
  Solidago decumbens var. oreophila (Rydb.) Fernald -- not accepted
  Solidago elliottii var. ascendens Fernald -- not accepted
  Solidago elliottii var. edisoniana (Mack.) Fernald -- not accepted
  Solidago elliottii var. pedicellata Fernald -- not accepted
  Solidago farwellii Fernald -- not accepted
  Solidago gigantea var. leiophylla Fernald -- not accepted
  Solidago glutinosa var. chlorolepis (Fernald) G.S. Ringius -- not accepted
  Solidago graminifolia var. major (Michx.) Fernald -- not accepted
  Solidago graminifolia var. nuttallii (Greene) Fernald -- not accepted
  Solidago graminifolia var. polycephala (Fernald) Fernald -- not accepted
  Solidago gymnospermoides (Greene) Fernald -- not accepted
  Solidago hispida var. arnoglossa Fernald -- not accepted -- hairy goldenrod
  Solidago hispida var. lanata (Hook.) Fernald -- not accepted -- hairy goldenrod
  Solidago hispida var. tonsa Fernald -- not accepted -- hairy goldenrod
  Solidago jacksonii (Kuntze) Fernald -- not accepted
  Solidago juncea var. neobohemica Fernald -- not accepted
  Solidago lepida ssp. fallax (Fernald) Semple -- accepted
  Solidago lepida var. elongata (Nutt.) Fernald -- not accepted
  Solidago lepida var. fallax Fernald -- not accepted
  Solidago lepida var. molina Fernald -- not accepted
  Solidago macrophylla var. thyrsoidea (E. Mey.) Fernald -- not accepted
  Solidago mensalis Fernald -- not accepted
  Solidago minor (Michx.) Fernald -- not accepted
  Solidago moseleyi Fernald -- not accepted
  Solidago multiradiata var. arctica (DC.) Fernald -- not accepted -- arctic goldenrod
  Solidago multiradiata var. parviceps Fernald -- not accepted -- mountain goldenrod
  Solidago nemoralis ssp. haleana (Fernald) G.W. Douglas -- not accepted
  Solidago nemoralis var. decemflora (DC.) Fernald -- not accepted
  Solidago nemoralis var. haleana Fernald -- not accepted
  Solidago neurolepis Fernald -- not accepted
  Solidago perlonga Fernald -- not accepted
  Solidago petiolaris var. wardii (Britton) Fernald -- not accepted
  Solidago polycephala Fernald -- not accepted
  Solidago racemosa var. gillmanii (A. Gray) Fernald -- not accepted
  Solidago radula var. laeta (Greene) Fernald -- not accepted -- western rough goldenrod
  Solidago radula var. stenolepis Fernald -- not accepted -- western rough goldenrod
  Solidago randii var. monticola (Porter) Fernald -- not accepted
  Solidago roanensis var. monticola (Torr. & A. Gray) Fernald -- not accepted
  Solidago rugosa ssp. rugosa var. villosa (Pursh) Fernald -- not accepted -- wrinkleleaf goldenrod
  Solidago rugosa var. celtidifolia (Small) Fernald -- not accepted
  Solidago sempervirens var. mexicana (L.) Fernald -- not accepted -- seaside goldenrod
  Solidago simplex ssp. simplex var. chlorolepis (Fernald) G.S. Ringius -- not accepted -- Mt. Albert goldenrod, verge-d'or simple variété ŕ bractées vertes
  Solidago simplex var. chlorolepis (Fernald) G.S. Ringius -- accepted
  Solidago simulans Fernald -- not accepted -- fall goldenrod
  Solidago tenuifolia var. pycnocephala Fernald -- not accepted
  Solidago uliginosa var. levipes (Fernald) Fernald -- not accepted -- bog goldenrod
  Solidago uliginosa var. linoides (Torr. & A. Gray) Fernald -- not accepted -- bog goldenrod
  Solidago uliginosa var. neglecta (Torr. & A. Gray) Fernald -- not accepted
  Solidago uliginosa var. peracuta (Fernald) Friesner -- not accepted
  Solidago uliginosa var. terrae-novae (Torr. & A. Gray) Fernald -- not accepted -- bog goldenrod
  Solidago uniligulata var. levipes Fernald -- not accepted
  Solidago victorinii Fernald -- not accepted -- Victorin's goldenrod
  Solidago X bartramiana Fernald (pro sp.) -- accepted
  Solidago X calcicola (Fernald) Fernald -- accepted -- limestone goldenrod
  Solidago X hirtipes Fernald -- not accepted
  Solidago X neurolepis Fernald (pro sp.) -- accepted -- Atlantic goldenrod
  Sparganium chlorocarpum var. acaule (Beeby ex Macoun) Fernald -- not accepted
  Sparganium lucidum Fernald & Eames -- not accepted
  Spartina alterniflora var. glabra (Muhl. ex Elliott) Fernald -- not accepted
  Spartina alterniflora var. pilosa (Merr.) Fernald -- not accepted
  Spartina maritima (Curtis) Fernald -- accepted -- small cordgrass
  Spartina patens var. monogyna (M.A. Curtis) Fernald -- not accepted
  Spartina pectinata var. suttiei (Farw.) Fernald -- not accepted
  Specularia holzingeri (McVaugh) Fernald -- not accepted
  Specularia lamprosperma (McVaugh) Fernald -- not accepted
  Sphaeralcea angusta (A. Gray) Fernald -- not accepted
  Spiraea alba var. septentrionalis (Fernald) Seymour -- not accepted
  Spiraea latifolia var. septentrionalis Fernald -- not accepted
  Spiraea septentrionalis (Fernald) Á. Löve & D. Löve -- accepted -- northern meadowsweet
  Spiraea tomentosa var. rosea (Raf.) Fernald -- not accepted -- steeplebush
  Spiranthes tuberosa var. grayi (Ames) Fernald -- not accepted
  Sporobolus neglectus var. ozarkanus (Fernald) Steyerm. & C. Kucera -- not accepted
  Sporobolus ozarkanus Fernald -- not accepted -- Ozark dropseed
  Sporobolus vaginiflorus var. inaequalis Fernald -- not accepted
  Sporobolus vaginiflorus var. ozarkanus (Fernald) Shinners -- accepted -- Ozark dropseed
  Stachys homotricha (Fernald) Rydb. -- not accepted
  Stachys palustris var. homotricha Fernald -- not accepted
  Stachys palustris var. pilosa (Nutt.) Fernald -- not accepted
  Stachys tenuifolia var. aspera (Michx.) Fernald -- not accepted
  Stachys tenuifolia var. hispida (Pursh) Fernald -- not accepted
  Stachys tenuifolia var. perlonga Fernald -- not accepted -- smooth hedgenettle
  Stachys tenuifolia var. platyphylla Fernald -- not accepted
  Stellaria bongardiana Fernald -- not accepted
  Stellaria borealis ssp. bongardiana (Fernald) Piper & Beattie -- not accepted
  Stellaria borealis var. bongardiana Fernald -- not accepted
  Stellaria borealis var. floribunda Fernald -- not accepted
  Stellaria borealis var. isophylla Fernald -- not accepted
  Stellaria borealis var. simcoei (Howell) Fernald -- not accepted
  Stellaria borealis var. sitchana (Steud.) Fernald -- not accepted
  Stellaria brachypetala var. bongardiana (Fernald) Fernald -- not accepted
  Stellaria calycantha var. bongardiana (Fernald) Fernald -- not accepted
  Stellaria calycantha var. floribunda (Fernald) Fernald -- not accepted
  Stellaria calycantha var. isophylla (Fernald) Fernald -- not accepted
  Stellaria calycantha var. laurentiana Fernald -- not accepted
  Stellaria calycantha var. simcoei (Howell) Fernald -- not accepted
  Stellaria calycantha var. sitchana (Steud.) Fernald -- not accepted
  Stellaria media var. glaberrima Beck, sensu Fernald -- not accepted
  Stellaria paludicola Fernald & B.G. Schub. -- not accepted
  Stellaria sitchana var. bongardiana (Fernald) Hultén -- not accepted
  Stenanthium gramineum var. micranthum Fernald -- not accepted -- eastern featherbells
  Stenanthium gramineum var. robustum (S. Watson) Fernald -- not accepted -- eastern featherbells
  Streptopus amplexifolius var. oreopolus (Fernald) Fassett -- not accepted
  Streptopus lanceolatus var. longipes (Fernald) Reveal -- accepted -- twistedstalk
  Streptopus roseus ssp. longipes (Fernald) Á. Löve & D. Löve -- not accepted
  Streptopus roseus var. longipes (Fernald) Fassett -- not accepted
  Streptopus X oreopolus Fernald (pro. sp.) -- accepted -- twistedstalk
  Strophostyles umbellata var. paludigena Fernald -- not accepted
  Stylisma pattersonii (Fernald & B.G. Schub.) G.N. Jones -- not accepted
  Stylisma pickeringii var. pattersonii (Fernald & B.G. Schub.) Myint -- accepted -- Patterson's dawnflower
  Stylosanthes riparia var. setifera Fernald -- not accepted
  Suaeda americana (Pers.) Fernald -- not accepted
  Suaeda maritima ssp. richii (Fernald) Bassett & Crompton -- not accepted -- Rich's seepweed
  Suaeda richii Fernald -- not accepted
  Symphoricarpos albus ssp. laevigatus (Fernald) Hultén -- not accepted
  Symphoricarpos albus var. laevigatus (Fernald) S.F. Blake -- accepted -- common snowberry
  Symphyotrichum anticostense (Fernald) G.L. Nesom -- accepted -- Anticosti Island aster
  Symphyotrichum ciliolatum var. comatum (Fernald) G.L. Nesom -- not accepted
  Symphyotrichum cordifolium var. furbishiae (Fernald) G.L. Nesom -- not accepted
  Symphyotrichum cordifolium var. racemiflorum (Fernald) G.L. Nesom -- not accepted
  Symphyotrichum crenifolium (Fernald) G.L. Nesom -- not accepted
  Symphyotrichum depauperatum (Fernald) G.L. Nesom -- accepted -- serpentine aster
  Symphyotrichum dumosum var. dodgei (Fernald) G.L. Nesom -- not accepted
  Symphyotrichum hendersonii (Fernald) G.L. Nesom -- accepted -- Lyall aster
  Symphyotrichum laurentianum (Fernald) G.L. Nesom -- accepted -- Gulf of St. Lawrence aster
  Symphyotrichum novi-belgii var. crenifolium (Fernald) J. Labrecque & L. Brouillet -- accepted -- Newfoundland aster
  Symphyotrichum subgeminatum (Fernald) G.L. Nesom -- not accepted
  Symphyotrichum X subgeminatum (Fernald) G.L. Nesom (pro sp.) -- accepted
  Symplocos tinctoria var. pygmaea Fernald -- not accepted
  Tanacetum huronense var. bifarium Fernald -- not accepted
  Tanacetum huronense var. johannense Fernald -- not accepted
  Tanacetum huronense var. terrae-novae Fernald -- not accepted
  Taraxacum ambigens Fernald -- not accepted
  Taraxacum ambigens var. flutius Fernald -- not accepted
  Taraxacum laurentianum Fernald -- accepted -- pissenlit du Saint-Laurent, St. Lawrence dandelion
  Taraxacum longii Fernald -- not accepted
  Taraxacum palustre var. vulgare (Lam.) Fernald -- not accepted
  Taraxacum torngatense Fernald -- not accepted
  Tephrosia spicata var. semitonsa Fernald -- not accepted
  Teucrium canadense var. littorale (E.P. Bicknell) Fernald -- not accepted
  Teucrium occidentale var. boreale (E.P. Bicknell) Fernald -- not accepted
  Thalictrum confine Fernald -- accepted
  Thalictrum polygamum var. hebecarpum Fernald -- not accepted
  Thalictrum pubescens var. hebecarpum (Fernald) B. Boivin -- not accepted
  Thalictrum venulosum var. confine (Fernald) B. Boivin -- not accepted
  Thelypteris palustris var. haleana Fernald -- not accepted
  Thelypteris palustris var. pubescens (G. Lawson) Fernald -- accepted -- eastern marsh fern
  Thermopsis villosa (Walter) Fernald & B.G. Schub. -- accepted -- Aaron's rod
  Tovara virginiana var. glaberrima Fernald -- not accepted
  Tracaulon sagittatum var. gracilentum (Fernald) C.F. Reed -- not accepted
  Trichophorum pumilum ssp. rollandii (Fernald) Roy L. Taylor & MacBryde -- not accepted
  Trichophorum pumilum var. rollandii (Fernald) Hultén -- not accepted
  Trichophorum rollandii (Fernald) Hultén -- not accepted
  Trichophorum verecundum (Fernald) Mohlenbr. -- not accepted
  Trichostema dichotomum var. puberulum Fernald & Griscom -- not accepted
  Trifolium gracilentum var. inconspicuum Fernald -- not accepted
  Trillium gleasonii auct. non Fernald -- not accepted
  Trillium pusillum var. virginianum Fernald -- accepted -- Virginia trillium, Virginia wakerobin
  Trillium virginianum (Fernald) C.F. Reed -- not accepted
  Triodia flava var. aristata (Scribn. & C.R. Ball) Fernald & Griscom -- not accepted
  Triodia flava var. chapmanii (Small) Fernald & Griscom -- not accepted
  Triorchos ecristata (Fernald) Small -- not accepted
  Trisetum spicatum ssp. pilosiglume (Fernald) Hultén -- accepted
  Trisetum spicatum var. maidenii (Gand.) Fernald -- not accepted
  Trisetum spicatum var. pilosiglume Fernald -- not accepted
  Tubiflora angustifolia (Fernald) Small -- not accepted
  Uvularia puberula var. nitida (Britton) Fernald -- not accepted
  Uvularia pudica sensu Fernald -- not accepted
  Uvularia pudica var. nitida (Britton) Fernald -- not accepted
  Vaccinium angustifolium var. hypolasium Fernald -- not accepted
  Vaccinium corymbosum var. albiflorum (Hook.) Fernald -- not accepted
  Vaccinium membranaceum var. rigidum (Hook.) Fernald -- not accepted
  Vaccinium neglectum (Small) Fernald -- not accepted
  Vaccinium vacillans var. crinitum Fernald -- not accepted
  Vaccinium X nubigenum Fernald (pro sp.) -- accepted
  Verbena urticifolia var. leiocarpa L.M. Perry & Fernald -- accepted -- white vervain
  Veronica alpina var. alterniflora Fernald -- not accepted
  Veronica alpina var. cascadensis Fernald -- not accepted
  Veronica alpina var. geminiflora Fernald -- not accepted
  Veronica alpina var. terrae-novae Fernald -- not accepted
  Veronica connata var. glaberrima (Pennell) Fernald -- not accepted
  Veronica wormskjoldii ssp. alterniflora (Fernald) Pennell -- not accepted
  Viburnum dentatum var. deamii (Rehder) Fernald -- not accepted -- Deam's arrowwood
  Viburnum lantana var. sphaerocarpum A. Gray ex Fernald -- not accepted
  Viburnum recognitum Fernald -- accepted -- northern arrow-wood, southern arrowwood, viorne litigieuse
  Viola adunca var. minor (Hook.) Fernald -- not accepted
  Viola eriocarpa var. leiocarpa Fernald & Wiegand -- not accepted
  Viola eriocarpon var. leiocarpon Fernald & Wiegand -- not accepted
  Viola kitaibeliana var. rafinesquei (Greene) Fernald -- not accepted
  Viola pensylvanica var. leiocarpa (Fernald & Wiegand) Fernald -- not accepted
  Viola pensylvanica var. leiocarpon (Fernald & Wiegand) Fernald -- not accepted
  Viola pubescens var. leiocarpa (Fernald & Wiegand) B. Boivin -- not accepted
  Viola pubescens var. leiocarpon (Fernald & Wiegand) Seym. -- not accepted
  Viola renifolia var. brainerdii (Greene) Fernald -- not accepted
  Viola septentrionalis var. grisea Fernald -- not accepted
  Viscaria alpina ssp. americana (Fernald) Böcher -- not accepted
  Viscaria americana (Fernald) Böcher -- not accepted
  Vitis aestivalis var. argentifolia (Munson) Fernald -- not accepted
  Vitis labrusca var. subedentata Fernald -- not accepted
  Vitis riparia var. syrticola (Fernald & Wiegand) Fernald -- not accepted
  Vitis vulpina var. syrticola Fernald & Wiegand -- not accepted
  Vitis X novae-angliae Fernald (pro sp.) -- accepted -- pilgrim grape
  Vulpia elliotea (Raf.) Fernald -- accepted
  Vulpia octoflora var. glauca (Nutt.) Fernald -- accepted -- eight-flower six-weeks grass, sixweeks fescue
  Vulpia octoflora var. tenella (Willd.) Fernald -- not accepted
  Waldsteinia fragarioides var. parviflora (Small) Fernald -- not accepted
  Wisteria macrostachya (Torr. & A. Gray) Nutt. ex B.L. Rob. & Fernald -- not accepted
  Xanthium chasei Fernald -- not accepted
  Xyris bayardii Fernald -- not accepted
  Xyris torta var. macropoda Fernald -- not accepted
  Yucca filamentosa var. smalliana (Fernald) H.E. Ahles -- not accepted
  Yucca smalliana Fernald -- not accepted
  Zigadenus densus (Desr.) Fernald -- not accepted -- Osceola's plume
  Zizia aptera (A. Gray) Fernald -- accepted -- heart-leaf alexanders, heartleaf alexanders, meadow zizia, meadowparsnip
  Zizia aptera var. occidentalis Fernald -- not accepted
  Zizia trifoliata (Michx.) Fernald -- accepted -- meadow alexanders
   

A gray bar