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Taxon author: Michx.

ITIS records citing taxon author "Michx."
 
 Kingdom Fungi
  Anaptychia palmulata (Michx.) Vain. -- accepted
  Bryoria trichodes (Michx.) Brodo & D. Hawksw. -- accepted
  Bryoria trichodes var. trichodes (Michx.) Brodo & D. Hawksw. -- accepted
  Cladonia sulphurina (Michx.) Fr. -- accepted
  Teloschistes exilis (Michx.) Vain. -- accepted
  Usnea strigosa var. major (Michx.) I.I. Tav. -- accepted
  Usnea strigosa var. rubiginea (Michx.) I.I. Tav. -- accepted
 
 Kingdom Plantae
  Acer barbatum Michx. -- not accepted -- Florida maple, hammock maple, southern sugar maple
  Acer nigrum F. Michx. -- accepted -- black maple, black sugar maple, érable noir, hard maple, rock maple, sugar maple
  Acer saccharum ssp. nigrum (F. Michx.) Desmarais -- not accepted
  Acer saccharum var. nigrum (F. Michx.) Britton -- not accepted
  Acerates longifolia (Michx.) Elliott -- not accepted
  Acomastylis radiata (Michx.) Bolle -- not accepted
  Actinomeris helianthoides (Michx.) Nutt. -- not accepted
  Acuan illinoense (Michx.) Kuntze -- not accepted
  Acuan illinoensis (Michx.) Kuntze -- not accepted
  Aeschynomene viscidula Michx. -- accepted -- sticky jointvetch
  Agalinis auriculata (Michx.) S.F. Blake -- accepted -- earleaf false foxglove
  Agaloma mercurialina (Michx.) Nieuwl. -- not accepted
  Agaloma pubentissima (Michx.) D.B. Ward -- not accepted
  Agrimonia striata Michx. -- accepted -- roadside agrimony, woodland groovebur
  Agrostis alba var. dispar (Michx.) Alph. Wood -- not accepted
  Agrostis aspera Michx. -- not accepted
  Agrostis decumbens (Michx.) Link -- not accepted
  Agrostis dispar Michx. -- not accepted
  Agrostis gigantea var. dispar (Michx.) Philipson -- not accepted
  Agrostis hiemalis var. laxiflora (Michx.) Beetle -- not accepted
  Agrostis hyemalis var. laxiflora (Michx.) Beetle -- not accepted
  Agrostis juncea Michx. -- not accepted
  Agrostis lateriflora Michx. -- not accepted
  Agrostis laxiflora (Michx.) Richardson -- not accepted
  Agrostis racemosa Michx. -- not accepted
  Agrostis sericea (Michx.) Elliott -- not accepted
  Aira ambigua Michx. -- not accepted
  Aira caespitosa var. ambigua (Michx.) Pursh -- not accepted
  Aira melicoides Michx. -- not accepted
  Aira obtusata Michx. -- not accepted
  Airopsis obtusata (Michx.) Desv. -- not accepted
  Allionia nyctaginea Michx. -- not accepted
  Allium mutabile Michx. -- not accepted
  Alopecurus aequalis ssp. aristulatus (Michx.) Tzvelev -- not accepted
  Alopecurus aequalis var. aristulatus (Michx.) Tzvelev -- not accepted
  Alopecurus aristulatus Michx. -- not accepted
  Alopecurus geniculatus var. aristulatus (Michx.) Torr. -- not accepted
  Alsine pubera (Michx.) Britton -- not accepted
  Amarella acuta (Michx.) Raf. -- not accepted
  Ambrosia artemisiifolia var. paniculata (Michx.) Blank. -- not accepted -- annual ragweed, common ragweed, ragweed
  Ambrosia bidentata Michx. -- accepted -- lanceleaf ragweed
  Ambrosia paniculata Michx. -- not accepted
  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 ssp. obovalis (Michx.) P. Landry -- not accepted
  Amelanchier canadensis var. obovalis (Michx.) Britton, Sterns & Poggenb. -- accepted -- coastal serviceberry
  Amelanchier obovalis (Michx.) Ashe -- not accepted -- coastal serviceberry
  Amelanchier oligocarpa (Michx.) M. Roem. -- not accepted
  Ampelamus laevis (Michx.) Krings -- not accepted
  Ampelopsis Michx. -- accepted -- peppervine
  Ampelopsis bipinnata Michx. -- not accepted
  Ampelopsis cordata Michx. -- accepted -- heartleaf ampelopsis, heartleaf peppervine
  Ampelopsis cordata auct. non Michx. -- not accepted
  Ampelopsis quinquefolia (L.) Michx. -- not accepted
  Anacampseros telephioides (Michx.) Haw. -- not accepted
  Anacharis canadensis (Michx.) Planch. -- not accepted
  Anastrophus paspaloides (Michx.) Nash -- not accepted
  Anatherum macrourum (Michx.) Griseb. -- not accepted
  Andromeda speciosa Michx. -- not accepted
  Andropogon ambiguus Michx. -- not accepted
  Andropogon avenaceum Michx. -- not accepted
  Andropogon avenaceus Michx. -- not accepted
  Andropogon curtipendulus (Michx.) Spreng. ex Steud. -- not accepted
  Andropogon dissitiflorum Michx. -- not accepted
  Andropogon dissitiflorus Michx. -- not accepted
  Andropogon macrourum Michx. -- not accepted
  Andropogon macrourus Michx. -- not accepted
  Andropogon macrourus var. macrourus Michx. -- not accepted
  Andropogon nutans var. avenaceus (Michx.) Hack. -- not accepted
  Andropogon scoparius Michx. -- not accepted
  Andropogon scoparius f. scoparius Michx. -- not accepted
  Andropogon scoparius var. neomexicanus (Nash) Michx. -- not accepted
  Andropogon scoparius var. scoparius Michx. -- not accepted
  Andropogon ternarius Michx. -- accepted -- splitbeard bluestem
  Andropogon ternarius var. ternarius Michx. -- not accepted -- splitbeard bluestem
  Anemone parviflora Michx. -- accepted -- smallflowered anemone
  Anemone parviflora var. parviflora Michx. -- not accepted -- smallflowered anemone
  Angelica triquinata Michx. -- accepted -- filmy angelica
  Anisophyllum dentatum (Michx.) Haw. -- not accepted
  Anthaenantha villosa (Michx.) Beauv. -- not accepted
  Anthaenantia villosa (Michx.) P. Beauv. -- accepted -- green silkyscale
  Anthenantia villosa (Michx.) P. Beauv. -- not accepted
  Anthoceros carolinianus Michx. -- not accepted
  Anthoceros laevis ssp. carolinianus (Michx.) R.M. Schust. -- not accepted
  Anthoceros laevis var. carolinianus (Michx.) Lindb. -- not accepted
  Anychia dichotoma Michx. -- not accepted
  Apassalus humistratus (Michx.) Kobuski -- not accepted
  Arabis ovata sensu Small, non Michx. -- not accepted
  Arenaria glabra Michx. -- not accepted
  Arenaria groenlandica var. glabra (Michx.) Fernald -- not accepted
  Arenaria lanuginosa (Michx.) Rohrb. -- accepted -- spreading sandwort
  Arenaria lanuginosa ssp. lanuginosa (Michx.) Rohrb. -- not accepted -- spreading sandwort
  Arenaria lanuginosa ssp. lanuginosa var. lanuginosa (Michx.) Rohrb. -- not accepted -- spreading sandwort
  Arenaria lanuginosa var. lanuginosa (Michx.) Rohrb. -- accepted -- spreading sandwort
  Arenaria patula Michx. -- not accepted
  Arenaria stricta Michx. -- not accepted
  Aristida dichotoma Michx. -- accepted -- churchmouse threeawn
  Aristida dichotoma var. dichotoma Michx. -- accepted -- churchmouse threeawn
  Aristida oligantha Michx. -- accepted -- Oldfield (Prairie) 3-awn, oldfield threeawn, prairie threeawn
  Aristida stricta Michx. -- accepted -- pineland threeawn
  Aristida stricta var. stricta Michx. -- not accepted
  Aronia melanocarpa (Michx.) Elliott -- accepted -- black chokeberry
  Artemisia campestris ssp. canadensis (Michx.) Scoggan -- accepted
  Artemisia campestris ssp. caudata (Michx.) H.M. Hall & Clem. -- accepted -- field sagewort, field wormwood, Pacific wormwood
  Artemisia campestris var. canadensis (Michx.) S.L. Welsh -- not accepted
  Artemisia campestris var. caudata (Michx.) Palmer & Steyerm. -- not accepted
  Artemisia canadensis Michx. -- not accepted
  Artemisia caudata Michx. -- not accepted
  Arundinaria Michx. -- accepted -- cane
  Arundinaria gigantea ssp. macrosperma (Michx.) McClure -- accepted -- giant cane
  Arundinaria macrosperma Michx. -- not accepted
  Arundo canadensis Michx. -- not accepted
  Asarum arifolium Michx. -- not accepted
  Asarum hypericoides var. multicaule (Michx. ex Willd.) Fernald -- not accepted
  Asclepias lanceolata var. paupercula (Michx.) Fernald -- not accepted
  Asclepias laurifolia Michx. -- not accepted
  Asclepias longifolia Michx. -- accepted -- longleaf milkweed
  Ascyrum hypericoides var. multicaule (Michx. ex Willd.) Fernald -- not accepted
  Ascyrum pumilum Michx. -- not accepted
  Ascyrum stans Michx. ex Willd. -- not accepted
  Asimina parviflora (Michx.) Dunal -- accepted -- smallflower pawpaw
  Asprella lenticularis (Michx.) P. Beauv. -- not accepted
  Asprella lenticularis (Michx.) Roem. & Schult. -- not accepted
  Aster acuminatus Michx. -- not accepted
  Aster acuminatus var. acuminatus Michx. -- not accepted -- whorled wood aster
  Aster cordidifolius Michx. -- not accepted
  Aster coridifolius Michx. -- not accepted
  Aster diversifolius Michx. -- not accepted
  Aster dumosus var. cordidifolius (Michx.) Torr. & A. Gray -- not accepted
  Aster dumosus var. coridifolius (Michx.) Torr. & A. Gray -- not accepted
  Aster ericoides var. villosus (Michx.) Torr. & A. Gray -- not accepted
  Aster infirmus Michx. -- not accepted
  Aster solidagineus Michx. -- not accepted
  Aster subulatus Michx. -- not accepted -- annual saltmarsh aster
  Aster subulatus var. subulatus Michx. -- not accepted -- annual saltmarsh aster
  Aster surculosus Michx. -- not accepted -- creeping aster
  Aster tortifolius Michx. -- not accepted
  Aster tortifolius (Torr. & A. Gray) A. Gray non Michx. -- not accepted
  Aster undulatus var. diversifolius (Michx.) A. Gray -- not accepted
  Aster villosus Michx. -- not accepted
  Astragalus villosus Michx. -- accepted -- bearded milkvetch
  Astranthium integrifolium (Michx.) Nutt. -- accepted -- entireleaf western daisy
  Astranthium integrifolium ssp. integrifolium (Michx.) Nutt. -- accepted -- entireleaf western daisy
  Astranthuim integrifolium (Michx.) Nutt. -- not accepted
  Astranthuim integrifolium var. integrifolium (Michx.) Nutt. -- not accepted
  Atheropogon curtipendulus (Michx.) E. Fourn. -- not accepted
  Athyrium asplenioides (Michx.) A.A. Eaton -- not accepted
  Athyrium filix-femina ssp. asplenioides (Michx.) Hultén -- not accepted -- asplenium ladyfern
  Athyrium filix-femina var. asplenioides (Michx.) Farw. -- accepted -- asplenium ladyfern
  Athyrium thelypterioides (Michx.) Desv. -- not accepted
  Aureolaria auriculata (Michx.) Farw. -- not accepted
  Avena glumosa Michx. -- not accepted
  Avena mollis Michx. -- not accepted
  Avena palustris Michx. -- not accepted
  Avena striata Michx. -- not accepted
  Azalea calendulacea Michx. -- not accepted
  Azalea calendulacea var. flammea Michx. -- not accepted
  Azalea calendulaceum var. crocea Michx. -- not accepted
  Azalea canescens Michx. -- not accepted
  Azalea periclymenoides Michx. -- not accepted
  Azalea pilosa Michx. -- not accepted
  Baccharis angustifolia Michx. -- accepted -- saltwater false willow
  Bacopa rotundifolia (Michx.) Wettst. -- accepted -- disc waterhyssop, disk water-hyssop, disk waterhyssop, wet waterhyssop
  Bartonia paniculata (Michx.) Muhl. -- accepted -- twining screwstem
  Bartonia paniculata ssp. paniculata (Michx.) Muhl. -- accepted -- twining screwstem
  Bartonia verna (Michx.) Raf. ex Barton -- accepted -- white screwstem
  Bartonia virginica var. paniculata (Michx.) B. Boivin -- not accepted
  Bataprine hispidula (Michx.) Nieuwl. -- not accepted
  Bataprine uniflora (Michx.) Nieuwl. -- not accepted
  Batidea strigosa (Michx.) Greene -- not accepted
  Batschia canescens Michx. -- not accepted
  Bejaria paniculata Michx. -- not accepted
  Bellis integrifolia Michx. -- not accepted
  Berlandiera pumila (Michx.) Nutt. -- accepted -- soft greeneyes
  Berlandiera pumila var. pumila (Michx.) Nutt. -- not accepted
  Betula glandulosa Michx. -- accepted -- resin birch
  Betula lutea F. Michx. -- not accepted
  Bidens aristosa (Michx.) Britton -- accepted -- bearded beggarticks, long-bracted beggar-ticks, tickseed sunflower
  Bidens coronata var. trichosperma (Michx.) Fernald -- not accepted
  Bidens mitis (Michx.) Sherff -- accepted -- smallfruit beggarticks
  Bidens trichosperma (Michx.) Britton -- accepted -- crowned beggarticks
  Bigelowia nudata (Michx.) DC. -- accepted -- pineland rayless goldenrod
  Bigelowia nudata ssp. nudata (Michx.) DC. -- not accepted -- pineland rayless goldenrod
  Bigelowia nudata var. nudata (Michx.) DC. -- accepted -- pineland rayless goldenrod
  Bilderdykia cilinodis (Michx.) Greene -- not accepted
  Bivonea stimulosa (Michx.) Raf. -- not accepted
  Blephariglotis lacera (Michx.) Farw. -- not accepted
  Blephariglottis lacera (Michx.) Farw. -- not accepted
  Botrychium lunarioides (Michx.) Sw. -- accepted -- prostrate grapefern, winter grapefern
  Bouteloua curtipendula (Michx.) Torr. -- accepted -- sideoats grama
  Bouteloua curtipendula var. curtipendula (Michx.) Torr. -- accepted -- side-oats grama, sideoats grama
  Brachyelytrum aristosum (Michx.) P. Beauv. ex Trel. -- accepted
  Brachyelytrum aristosum var. aristosum (Michx.) P. Beauv. ex Trel. -- not accepted
  Brahea serrulata (Michx.) H. Wendl. -- not accepted
  Bramia rotundifolia (Michx.) Britton -- not accepted
  Briza canadensis Michx. -- not accepted
  Bromopsis canadensis (Michx.) Holub -- not accepted
  Bromus canadensis Michx. -- not accepted -- Canadian brome
  Bromus hookeri var. canadensis (Michx.) E. Fourn. -- not accepted
  Brotherella recurvans (Michx.) Fleisch. -- accepted -- recurved brotherella moss
  Bumelia lanuginosa (Michx.) Pers. -- not accepted -- gum bumelia
  Bumelia reclinata (Michx.) Vent. -- not accepted
  Buxella brachycera (Michx.) Small -- not accepted
  Calamagrostis canadensis (Michx.) P. Beauv. -- accepted -- bluejoint, bluejoint reedgrass
  Calamagrostis canadensis ssp. canadensis (Michx.) P. Beauv. -- not accepted
  Calamagrostis canadensis var. canadensis (Michx.) P. Beauv. -- accepted -- big reedgrass, bluejoint
  Calamintha glabella (Michx.) Benth. -- not accepted -- Ozark calamint
  Callirhoe alcaeoides (Michx.) A. Gray -- accepted -- light poppymallow, plains poppymallow
  Calophanes humistrata (Michx.) Shuttlw. ex Nees -- not accepted
  Calystegia spithamaea ssp. stans (Michx.) Brummitt -- accepted -- low false bindweed
  Campanula divaricata Michx. -- accepted -- small bonny bellflower
  Campanula flexuosa Michx. -- not accepted
  Campuloa monostachya (Michx.) Roem. & Schult. -- not accepted
  Campulosus monostachyus (Michx.) P. Beauv. -- not accepted
  Cardamine concatenata (Michx.) Sw. -- accepted -- cutleaf toothwort
  Cardamine diphylla (Michx.) Alph. Wood -- accepted -- crinkleroot
  Cardamine rotundifolia Michx. -- accepted -- American bittercress
  Cardamine teres Michx. -- not accepted
  Cardamine uniflora Michx. -- not accepted
  Carduus muticus (Michx.) Pers. -- not accepted
  Carduus repandus (Michx.) Pers. -- not accepted
  Carex debilis Michx. -- accepted -- white edge sedge
  Carex debilis var. debilis Michx. -- accepted -- white edge sedge
  Carex languinosa Michx. -- not accepted
  Carex lanuginosa Michx. -- not accepted
  Carex lanuginosa auct. non Michx. -- not accepted -- woolly sedge
  Carex lenticularis Michx. -- accepted -- lakeshore sedge, shore sedge, tufted sedge
  Carex lenticularis var. lenticularis Michx. -- accepted -- lakeshore sedge
  Carex miliaris Michx. -- not accepted
  Carex oederi ssp. viridula (Michx.) Hultén -- not accepted
  Carex oligosperma Michx. -- accepted -- fewseed sedge
  Carex oligosperma var. oligosperma Michx. -- not accepted -- fewseed sedge
  Carex paupercula Michx. -- not accepted
  Carex saxatilis var. miliaris (Michx.) L.H. Bailey -- not accepted
  Carex scirpoidea Michx. -- accepted -- Canadian single-spike sedge, downy sedge, northern singlespike sedge
  Carex scirpoidea ssp. scirpoidea Michx. -- accepted -- northern singlespike sedge
  Carex squarrosa var. typhina (Michx.) Nutt. -- not accepted
  Carex striata Michx. -- accepted -- Walter's sedge
  Carex striata var. striata Michx. -- not accepted -- Walter's sedge
  Carex striatula Michx. -- accepted -- lined sedge
  Carex triceps Michx. -- not accepted
  Carex typhina Michx. -- accepted -- cat-tail sedge, cattail sedge
  Carex viridula Michx. -- accepted -- green sedge, little green sedge
  Carex viridula ssp. viridula Michx. -- accepted -- green sedge, little green sedge
  Carex viridula var. viridula Michx. -- accepted -- little green sedge
  Carex vulpinoidea Michx. -- accepted -- common fox sedge, fox sedge
  Carex vulpinoidea var. vulpinoidea Michx. -- not accepted -- fox sedge
  Carphephorus bellidifolius (Michx.) Torr. & A. Gray -- accepted -- sandywoods chaffhead
  Carphephorus tomentosus (Michx.) Torr. & A. Gray -- accepted -- woolly chaffhead
  Carpinus americana Michx. -- not accepted
  Carpoceros carolinianus (Michx.) Dumort. -- not accepted
  Carya aquatica (F. Michx.) Elliott -- accepted
  Carya laciniosa (Michx. f.) G. Don -- accepted -- kingnut, shellbark hickory
  Carya myristiciformis (F. Michx.) Elliott -- accepted -- nutmeg hickory
  Carya oliviformis (Michx. f.) Nutt. -- not accepted
  Cassia fasciculata Michx. -- not accepted -- partridge pea, showy partridgepea, sleepingplant
  Castanea americana (Michx.) Raf. -- not accepted
  Caulophyllum Michx. -- accepted -- blue cohosh, caulophylle, cohosh
  Caulophyllum thalictroides (L.) Michx. -- accepted -- blue cohosh, caulophylle faux-pigamon, papoose-root, squaw-root
  Ceanothus microphyllus Michx. -- accepted -- littleleaf buckbrush
  Centaurella paniculata Michx. -- not accepted
  Centaurella verna Michx. -- not accepted
  Cerasus pumila (L.) Michx. -- not accepted
  Ceratiola Michx. -- accepted -- ceratiola
  Ceratiola ericoides Michx. -- accepted -- Florida-rosemary, sand heath, sandhill-rosemary
  Cerothamnus pumilus (Michx.) Small -- not accepted
  Chaetaria oligantha (Michx.) P. Beauv. -- not accepted
  Chaetaria stricta (Michx.) P. Beauv. -- not accepted
  Chamaecrista fasciculata (Michx.) Greene -- accepted -- partridge pea, showy partridgepea, sleepingplant
  Chamaecrista fasciculata var. fasciculata (Michx.) Greene -- accepted -- partridge pea, sleepingplant
  Chamaedaphne cuneata (Michx.) Kuntze -- not accepted
  Chamisme angustifolia (Michx.) Nieuwl. -- not accepted
  Chasmanthium gracile (Michx.) Link -- not accepted
  Chasmanthium latifolium (Michx.) H.O. Yates -- accepted -- broadleaf uniola, Indian wood-oats, Indian woodoats
  Cheilanthes lanosa (Michx.) D.C. Eaton -- accepted -- hairy lipfern
  Chetyson pulchella (Michx.) Á. Löve & D. Löve -- not accepted
  Chloris curtipendula Michx. -- not accepted
  Chloris monostachya Michx. -- not accepted
  Chloris mucronata Michx. -- not accepted
  Chloris piperita Michx. ex Steud. -- not accepted
  Chondrophora nudata (Michx.) Britton -- not accepted
  Chrysobalanus oblongifolius Michx. -- not accepted
  Chrysocoma nudata Michx. -- not accepted
  Chrysoma pauciflosculosa (Michx.) Greene -- accepted -- woody goldenrod
  Chrysopogon avenaceus (Michx.) Benth. -- not accepted
  Chrysopogon nutans var. avenaceus (Michx.) Trel. ex Branner & Coville -- not accepted
  Chrysopsis gossypina (Michx.) Elliot -- accepted -- cottony goldenaster
  Chrysopsis gossypina ssp. gossypina (Michx.) Elliot -- accepted -- cottony goldenaster
  Chrysopsis graminifolia (Michx.) Elliot -- not accepted
  Cimicifuga americana Michx. -- not accepted -- mountain bugbane
  Cinna lateriflora (Michx.) Kunth -- not accepted
  Cinna racemosa (Michx.) Kunth -- not accepted
  Cirsium horridulum Michx. -- accepted -- yellow thistle
  Cirsium horridulum var. horridulum Michx. -- accepted -- yellow thistle
  Cirsium muticum Michx. -- accepted -- swamp thistle
  Cirsium repandum Michx. -- accepted -- sandhill thistle
  Cirsium virginianum (L.) Michx. -- accepted -- Virginia thistle
  Cladrastis lutea (F. Michx.) K. Koch -- not accepted
  Clausenellia ternata (Michx.) Á. Löve & D. Löve -- not accepted
  Claytonia caroliniana Michx. -- accepted -- Carolina springbeauty
  Claytonia caroliniana var. caroliniana Michx. -- not accepted -- Carolina springbeauty
  Clethra acuminata Michx. -- accepted -- cinnamon clethra, mountain sweet pepperbush, mountain sweetpepperbush
  Clethra alnifolia var. glabella Michx. -- not accepted
  Clethra alnifolia var. tomentosa (Lam.) Michx. -- not accepted
  Clinopodium glabellum (Michx.) Kuntze -- accepted -- Ozark calamint
  Clintonia umbellulata (Michx.) Morong -- accepted -- white clintonia
  Cnidoscolus stimulosus (Michx.) Engelm. & A. Gray -- not accepted -- finger rot
  Cnidoscolus urens var. stimulosus (Michx.) Govaerts -- accepted -- finger rot
  Coelopleurum actaeifolium (Michx.) J.M. Coult. & Rose -- not accepted
  Coelorachis cylindrica (Michx.) Nash -- not accepted -- Carolina jointail, cylinder jointtail grass
  Coleataenia anceps (Michx.) Soreng -- accepted
  Coleataenia anceps ssp. anceps (Michx.) Soreng -- accepted
  Collinsonia tuberosa Michx. -- not accepted -- deepwoods horsebalm
  Commelina angustifolia Michx. -- not accepted
  Commelina erecta var. angustifolia (Michx.) Fernald -- not accepted -- whitemouth dayflower
  Commelina longifolia Michx. -- not accepted
  Conobea multifida (Michx.) Benth. -- not accepted
  Coreopsis lanceolata var. villosa Michx. -- not accepted
  Coreopsis latifolia Michx. -- accepted -- broadleaf tickseed
  Cornus alba ssp. stolonifera (Michx.) Wangerin -- not accepted
  Cornus asperifolia Michx. -- accepted -- toughleaf dogwood
  Cornus sericea ssp. stolonifera (Michx.) Fosberg -- not accepted
  Cornus stolonifera Michx. -- not accepted -- red-osier dogwood
  Cornus stolonifera var. stolonifera Michx. -- not accepted
  Cracca hispidula (Michx.) Kuntze -- not accepted
  Crataegus spathulata Michx. -- accepted -- littlehip hawthorn
  Crocanthemum corymbosum (Michx.) Britton -- not accepted
  Crotalaria sagittalis var. oblonga Michx. -- not accepted
  Croton argyranthemus Michx. -- accepted -- healing croton, silver croton, silverleaf croton
  Croton capitatus Michx. -- accepted -- capitate croton, doveweed, hogweed, hogwort, woolly croton
  Croton capitatus var. capitatus Michx. -- accepted -- hogwort
  Croton disjunctiflorus Michx. -- not accepted
  Croton monanthogynus Michx. -- accepted -- oneseeded croton, prairie tea, prairie-tea
  Crotonopsis Michx. -- not accepted
  Crotonopsis argentea var. linearis (Michx.) Pursh -- not accepted
  Crotonopsis linearis Michx. -- not accepted
  Cteisium Michx. -- not accepted
  Cunila glabella Michx. -- not accepted
  Curtopogon dichotomus (Michx.) P. Beauv. -- not accepted
  Cylactis arctica ssp. acaulis (Michx.) W.A. Weber -- not accepted
  Cylactis arcticus ssp. acaulis (Michx.) W.A. Weber -- not accepted
  Cynanchum laeve (Michx.) Pers. -- accepted -- climbing milkweed, honeyvine, honeyvine milkweed, sandvine
  Cynodon curtipendulus (Michx.) Raspail -- not accepted
  Cynthia montana (Michx.) Standl. -- not accepted
  Cyperus flavicomus Michx. -- accepted -- white-edge flatsedge, whiteedge flatsedge
  Cyperus ovularis (Michx.) Torr. -- not accepted
  Cyperus virens Michx. -- accepted -- green flatsedge
  Cyperus virens var. virens Michx. -- not accepted -- green flatsedge
  Cyrilla antillana Michx. -- not accepted
  Cyrtopogon dichotomus (Michx.) Spreng. -- not accepted
  Cystopteris tenuis (Michx.) Desv. -- accepted -- brittle bladderfern, upland brittle bladderfern
  Dactyloctenium aegyptius var. mucronatum (Michx.) Lanza & Mattei -- not accepted
  Dactyloctenium mucronatum (Michx.) Willd. -- not accepted
  Dalea candida Michx. ex Willd. -- accepted -- slender white prairieclover, white dalea, white prairie clover, white prairie-clover, white prairieclover
  Dalea candida var. candida Michx. ex Willd. -- accepted -- white prairie clover, white prairie-clover, white prairieclover
  Dalea carnea (Michx.) Poir. -- accepted -- whitetassels
  Dalea carnea var. carnea (Michx.) Poir. -- accepted -- whitetassels
  Danthonia glumosa (Michx.) P. Beauv. -- not accepted
  Dasystephana puberula (Michx.) Small -- not accepted
  Daucus pusillus Michx. -- accepted -- American wild carrot, rattlesnake carrot, rattlesnake weed, southwest wild carrot
  Decemium appendiculatum (Michx.) Small -- not accepted
  Delphinium azureum Michx. -- not accepted
  Delphinium tricorne Michx. -- accepted -- dwarf larkspur, rock larkspur
  Dennstaedtia punctilobula (Michx.) T. Moore -- accepted -- eastern hayscented fern, hay-scented fern
  Dentaria concatenata Michx. -- not accepted
  Dentaria diphylla Michx. -- not accepted
  Desmanthus illinoensis (Michx.) MacMill. ex B.L. Rob. & Fernald -- accepted -- Illinois bundleflower, prairie bundleflower
  Desmodium acuminatum (Michx.) DC. -- not accepted
  Desmodium bracteosum (Michx.) DC. -- not accepted
  Desmodium glabellum (Michx.) DC. -- accepted -- Dillenius' ticktrefoil
  Deyeuxia canadensis (Michx.) Munro ex Hook. -- not accepted
  Dianthera humilis (Michx.) Engelm. & A. Gray -- not accepted
  Dichondra carolinensis Michx. -- accepted -- Carolina ponysfoot, grass ponysfoot
  Dichondra repens var. carolinensis (Michx.) Choisy -- not accepted
  Dichromena Michx. -- not accepted
  Digitaria paspalodes Michx. -- not accepted
  Digitaria paspaloides Michx. -- not accepted
  Digitaria pilosa Michx. -- not accepted
  Digitaria serotina (Walter) Michx. -- accepted -- dwarf crabgrass
  Dilepyrum Michx. -- not accepted
  Dilepyrum aristosum Michx. -- not accepted
  Dilepyrum minutiflorum Michx. -- not accepted
  Dinebra curtipendula (Michx.) P. Beauv. -- not accepted
  Diphylleia Michx. -- accepted -- umbrellaleaf
  Diphylleia cymosa Michx. -- accepted -- American umbrellaleaf
  Disporum lanuginosum (Michx.) G. Nicholson -- not accepted -- yellow fairybells
  Distichlis spicata var. distichophylla (Michx.) Beetle -- not accepted
  Doellingeria infirma (Michx.) Greene -- accepted -- cornel-leaf whitetop
  Draba arabisans Michx. -- accepted -- rock draba
  Dryopteris hexagonoptera (Michx.) C. Chr. -- not accepted
  Dyschoriste humistrata (Michx.) Kuntze -- accepted -- swamp snakeherb
  Dyschoriste oblongifolia (Michx.) Kuntze -- accepted -- oblongleaf snakeherb
  Eatonia obtusata (Michx.) A. Gray -- not accepted
  Echinocystis lobata (Michx.) Torr. & A. Gray -- accepted -- wild balsamapple, wild cucumber, wild mock-cucumber, wild mockcucumber
  Eleocharis quadrangulata (Michx.) Roem. & Schult. -- accepted -- squarestem spikerush, squarestem spikesedge
  Eleocharis tuberculosa (Michx.) Roem. & Schult. -- accepted -- cone-cup spikerush
  Eleusine mucronata (Michx.) Hornem. -- not accepted
  Eleusine mucronata Michx. -- not accepted
  Elodea Michx. -- accepted -- water weed, waterweed
  Elodea canadensis Michx. -- accepted -- broad waterweed, Canada waterweed, Canadian waterweed
  Elytraria Michx. -- accepted -- scalystem
  Elytraria virgata Michx. -- not accepted
  Epilobium oliganthum Michx. -- not accepted
  Epilobium palustre var. oliganthum (Michx.) Fernald -- not accepted
  Equisetum scirpoides Michx. -- accepted -- dwarf scouringrush, pręle faux-scirpe
  Eragrostis hirsuta (Michx.) Nees -- accepted -- bigtop lovegrass
  Eragrostis pectinacea (Michx.) Nees -- accepted -- purple love grass, purple lovegrass, spreading lovegrass, tufted lovegrass
  Eragrostis pectinacea (Michx.) Steud. -- not accepted
  Eragrostis pectinacea var. pectinacea (Michx.) Nees -- accepted -- purple love grass, Purple lovegrass, spreading lovegrass, tufted lovegrass
  Eragrostis reptans (Michx.) Nees -- accepted -- creeping lovegrass
  Eragrostis reptans (Michx.) J. Presl -- not accepted
  Erianthus Michx. -- not accepted
  Erianthus alopecuroides var. brevibarbis (Michx.) Chapm. -- not accepted
  Erianthus brevibarbis Michx. -- not accepted
  Erianthus brevibarbis var. brevibarbis Michx. -- not accepted
  Erianthus saccharoides Michx. -- not accepted
  Erianthus saccharoides ssp. saccharoides Michx. -- not accepted
  Erianthus saccharoides var. brevibarbis (Michx.) Hack. -- not accepted
  Erigenia bulbosa (Michx.) Nutt. -- accepted -- harbinger of spring
  Erigeron divaricatus Michx. -- not accepted
  Erigeron hyssopifolius Michx. -- accepted -- hyssopleaf fleabane
  Erigeron hyssopifolius var. hyssopifolius Michx. -- not accepted -- hyssopleaf fleabane
  Erigeron pulchellus Michx. -- accepted -- poor robin fleabane, robin's plantain
  Erigeron pulchellus var. pulchellus Michx. -- accepted -- robin's plantain
  Eriocaulon flavidulum Michx. -- not accepted
  Eriocaulon flavidulus Michx. -- not accepted
  Eriocaulon pellucidum Michx. -- not accepted
  Eriochloa mollis (Michx.) Kunth -- not accepted
  Eriochloa mollis var. mollis (Michx.) Kunth -- not accepted
  Eriogonum Michx. -- accepted -- buckwheat, ériogones, wild buckwheat
  Eriogonum tomentosum Michx. -- accepted -- dogtongue buckwheat
  Eryngium yuccifolium Michx. -- accepted -- button eryngo, button snakeroot, Yuccaleaf eryngo
  Eryngium yuccifolium var. yuccifolium Michx. -- accepted -- button eryngo
  Eupatorium album var. glandulosum (Michx.) DC. -- not accepted -- white thoroughwort
  Eupatorium falcatum Michx. -- not accepted
  Eupatorium glandulosum Michx. -- not accepted
  Eupatorium glandulosum Kunth non Michx. -- not accepted
  Eupatorium linearifolium sensu Michx. non Walter -- not accepted
  Eupatorium serotinum Michx. -- accepted -- late eupatorium, lateflowering thoroughwort
  Euphorbia dentata auct. non Michx. -- not accepted
  Euphorbia dentata Michx. -- accepted -- toothed euphorbia, toothed spurge, toothedleaf poinsettia
  Euphorbia dentata var. dentata Michx. -- not accepted -- toothed spurge, toothedleaf poinsettia
  Euphorbia graminifolia Michx. -- not accepted
  Euphorbia mercurialina Michx. -- accepted -- mercury spurge
  Euphorbia pubentissima Michx. -- accepted -- false flowering spurge, southeastern flowering spurge
  Eurybia surculosa (Michx.) G.L. Nesom -- accepted -- creeping aster
  Euthamia graminifolia var. major (Michx.) Moldenke -- not accepted
  Euthamia minor (Michx.) Greene -- not accepted
  Eutriana curtipendula (Michx.) Trin. -- not accepted
  Fallopia cilinodis (Michx.) Holub -- accepted -- fringed black bindweed
  Festuca americana Michx. ex P. Beauv. -- not accepted
  Festuca diandra Michx. -- not accepted
  Festuca distichophylla Michx. -- not accepted
  Festuca obtusata Michx. ex P. Beauv. -- not accepted
  Festuca poaeoides Michx. -- not accepted
  Festuca polystachya Michx. -- not accepted
  Fimbristylis autumnalis var. mucronulata (Michx.) Fernald -- not accepted
  Fimbristylis castanea (Michx.) Vahl -- not accepted -- marsh fimbry, saltmarsh fimbristylis
  Fimbristylis castanea var. puberula (Michx.) Britton -- not accepted
  Fimbristylis puberula (Michx.) Vahl -- accepted -- hairy fimbry
  Fimbristylis puberula var. puberula (Michx.) Vahl -- accepted -- hairy fimbry
  Forestiera acuminata (Michx.) Poir. -- accepted -- eastern swampprivet, swamp privet, Texas forestiera
  Forestiera autumnalis (Michx.) Poir. -- not accepted
  Forestiera ligustrina (Michx.) Poir. -- accepted -- privet, upland swampprivet
  Forestiera lingustrina (Michx.) Poir. -- not accepted
  Forestiera porulosa (Michx.) Poir. -- not accepted
  Fragaria canadensis Michx. -- not accepted
  Fragaria virginiana var. canadensis (Michx.) Farw. -- not accepted
  Frasera walteri Michx. -- not accepted
  Fraxinus quadrangulata Michx. -- accepted -- blue ash
  Fraxinus tomentosa Michx. f. -- not accepted
  Fuirena scirpoidea Michx. -- accepted -- southern umbrella-sedge, southern umbrellasedge
  Fuirena squarrosa Michx. -- accepted -- hairy umbrella-sedge, hairy umbrellasedge
  Funaria flavicans Michx. -- accepted -- funaria moss
  Gaillardia lanceolata Michx. -- not accepted
  Galactia glabella Michx. -- not accepted
  Galactia mollis Michx. -- accepted -- soft milkpea
  Galium asprellum Michx. -- accepted -- rough bedstraw
  Galium circaezans Michx. -- accepted -- licorice bedstraw, wild licorice, woods bedstraw
  Galium circaezans var. circaezans Michx. -- accepted -- licorice bedstraw, northern bedstraw
  Galium claytonii Michx. -- not accepted
  Galium hispidulum Michx. -- not accepted -- coastal bedstraw
  Galium latifolium Michx. -- accepted -- purple bedstraw
  Galium pilosum var. puncticulosum (Michx.) Torr. & A. Gray -- accepted -- hairy bedstraw
  Galium puncticulosum Michx. -- not accepted
  Galium rotundifolium var. circaezans (Michx.) Kuntze -- not accepted
  Galium triflorum Michx. -- accepted -- fragrant bedstraw, sweet bedstraw, sweetscented bedstraw
  Galium uniflorum Michx. -- accepted -- oneflower bedstraw
  Gastronychia herniarioides (Michx.) Small -- not accepted
  Gaura angustifolia Michx. -- not accepted -- southern beeblossom
  Gaylussacia brachycera (Michx.) A. Gray -- accepted -- box huckleberry
  Gentiana acuta Michx. -- not accepted
  Gentiana amarella ssp. acuta (Michx.) Hultén -- not accepted
  Gentiana amarella var. acuta (Michx.) Herder -- not accepted
  Gentiana puberula Michx. -- not accepted
  Gentiana puberula auct. non Michx. -- not accepted
  Gentianella acuta (Michx.) Hiitonen -- not accepted
  Gentianella amarella ssp. acuta (Michx.) J.M. Gillett -- accepted -- autumn dwarf gentian, autumn dwarf-gentian, autumn dwarfgentian
  Gentianella amarella var. acuta (Michx.) Herder -- not accepted
  Geobalanus oblongifolius (Michx.) Small -- not accepted
  Gerardia auriculata Michx. -- not accepted
  Geum geniculatum Michx. -- accepted -- bent avens
  Geum radiatum Michx. -- accepted -- Appalachian avens, spreading avens
  Glyceria canadensis (Michx.) Trin. -- accepted -- rattlesnake mannagrass
  Glyceria canadensis var. canadensis (Michx.) Trin. -- accepted
  Glyceria melicaria (Michx.) F.T. Hubb. -- accepted -- melic mannagrass
  Gonolobus Michx. -- accepted
  Gonolobus laevis Michx. -- not accepted
  Graphephorum melicoides (Michx.) Desv. -- accepted
  Gratiola pilosa Michx. -- accepted -- shaggy hedgehyssop
  Grossularia hirtella (Michx.) Spach -- not accepted
  Grossularia rotundifolia (Michx.) Coville & Britton -- not accepted
  Gymnadeniopsis clavellata (Michx.) Rydb. -- accepted -- small green wood orchid
  Gymnopogon ambiguus (Michx.) Britton, Sterns & Poggenb. -- accepted -- bearded skeletongrass
  Habenaria clavellata (Michx.) Spreng. -- not accepted
  Habenaria cristata (Michx.) R. Br. -- not accepted
  Habenaria lacera (Michx.) R. Br. -- not accepted
  Habenaria quinqueseta (Michx.) Eaton -- accepted -- Habenaria blanca, longhorn bog orchid, longhorn false reinorchid
  Habenaria quinqueseta (Michx.) Sw. -- not accepted -- longhorn bog orchid, longhorn false reinorchid
  Habenaria quinqueseta var. quinqueseta (Michx.) Eaton -- accepted -- longhorn false reinorchid
  Halesia parviflora Michx. -- not accepted -- little silverbell
  Hedyotis caerulea var. minor (Michx.) Torr. & A. Gray -- not accepted
  Hedysarum alpinum ssp. americanum (Michx. ex Pursh) B. Fedtsch. -- not accepted
  Hedysarum alpinum var. americanum Michx. -- not accepted -- American alpine sweetvetch
  Hedysarum americanum (Michx. ex Pursh) Britton -- not accepted
  Helenium fimbriatum auct. non (Michx.) Eaton -- not accepted
  Helianthemum canadense (L.) Michx. -- accepted -- Canada frostweed, hélianthčme du Canada, longbranch frostweed
  Helianthemum carolinianum (Walter) Michx. -- accepted -- Carolina frostweed
  Helianthemum corymbosa Michx. -- not accepted
  Helianthemum corymbosum Michx. -- accepted -- pine barren frostweed, pinebarren frostweed
  Helianthus tomentosus auct. non Michx. -- not accepted
  Helianthus tomentosus Michx. -- not accepted
  Heracleum lanatum Michx. -- not accepted -- common cowparsnip, cow parsnip
  Heracleum sphondylium var. lanatum (Michx.) Dorn -- not accepted
  Hesperis pinnatifida Michx. -- not accepted
  Hesperis pinnatifidus Michx. -- not accepted
  Heteranthera graminea (Michx.) Vahl -- not accepted
  Heterotheca gossypina (Michx.) Shinners -- not accepted
  Heterotheca graminiflora (Michx.) Shinners -- not accepted
  Heterotheca graminifolia (Michx.) Shinners -- not accepted
  Heuchera villosa Michx. -- accepted -- hairy alumroot, maple-leaved alumroot
  Heuchera villosa var. villosa Michx. -- accepted -- hairy alumroot
  Hexastylis arifolia (Michx.) Small -- accepted -- littlebrownjug
  Hexastylis arifolia var. arifolia (Michx.) Small -- accepted -- littlebrownjug
  Hibiscus grandiflorus Michx. -- accepted -- swamp rosemallow
  Hibiscus scaber Michx. -- not accepted
  Hicoria aquatica (F. Michx.) Britton -- not accepted
  Hicoria laciniosa (Michx. f.) Sarg. -- not accepted
  Hicoria myristiciformis (F. Michx.) Britton -- not accepted
  Hieracium canadense Michx. -- accepted -- Canadian hawkweed, yellow hawkweed
  Hieracium canadense var. canadense Michx. -- not accepted -- Canadian hawkweed
  Hieracium gronovii var. foliosum Michx. -- not accepted
  Hieracium kalmii var. canadense (Michx.) Reveal -- not accepted
  Hieracium scabrum Michx. -- accepted -- rough hawkweed
  Hieracium scabrum var. scabrum Michx. -- not accepted -- rough hawkweed
  Hieracium umbellatum var. canadense (Michx.) Breitung -- not accepted
  Hieracium venosum var. nudicaule (Michx.) Farw. -- not accepted -- rattlesnakeweed
  Holcus nutans var. avenaceus (Michx.) Hack. -- not accepted
  Homalocenchrus lenticularis (Michx.) Kuntze -- not accepted
  Houstonia angustifolia Michx. -- not accepted
  Houstonia rotundifolia Michx. -- not accepted
  Houstonia serpyllifolia Michx. -- accepted -- thymeleaf bluet
  Hugeria erythrocarpa (Michx.) Small -- not accepted
  Huperzia lucidula (Michx.) Trevis. -- accepted -- shining clubmoss
  Huperzia selago ssp. lucidula (Michx.) Á. Löve & D. Löve -- not accepted
  Hydranthelium rotundifolium (Michx.) Pennell -- not accepted
  Hydrochloa fluitans (Michx.) Torr. -- not accepted
  Hydrocotyle lineata Michx. -- not accepted
  Hydrophyllum appendiculatum Michx. -- accepted -- great waterleaf
  Hydropyrum fluitans (Michx.) Kunth -- not accepted
  Hylotelephium telephioides (Michx.) H. Ohba -- accepted -- Allegheny stonecrop
  Hypericum frondosum Michx. -- accepted -- cedarglade St. Johnswort
  Hypericum hypericoides ssp. multicaule (Michx. ex Willd.) N. Robson -- accepted -- St. Andrew's cross
  Hypericum hypericoides var. multicaule (Michx. ex Willd.) Fosberg -- not accepted
  Hypericum nudiflorum Michx. ex Willd. -- accepted -- early St. Johnswort, naked St. Johnswort
  Hypericum sphaerocarpum Michx. -- accepted -- roundseed St. Johnswort
  Hypericum stans (Michx.) W.P. Adams & N. Robson -- not accepted
  Hypnum pallescens var. reptile (Michx.) Husn. -- not accepted
  Hypnum reptile Michx. -- not accepted
  Hypopitys lanuginosa (Michx.) Nutt. -- not accepted
  Ilex ambigua (Michx.) Torr. -- accepted -- Carolina holly
  Illicium parviflorum Michx. ex Vent. -- accepted -- yellow anise-tree, yellow anisetree
  Ilysanthes anagallidea (Michx.) B.L. Rob. -- not accepted
  Inula gossypina Michx. -- not accepted
  Iodanthus pinnatifidus (Michx.) Steud. -- accepted -- purple rocket, purplerocket
  Ipomoea macrorhiza Michx. -- accepted -- largeroot morning-glory, largeroot morningglory
  Ipomopsis Michx. -- accepted
  Isanthus Michx. -- not accepted -- fluxweed
  Jatropha stimulosa Michx. -- not accepted
  Juncus acuminatus Michx. -- accepted -- sharp-fruit rush, tapertip rush
  Juncus aristulatus auct. non Michx. -- not accepted
  Juncus aristulatus Michx. -- not accepted
  Juncus melanocarpus Michx. -- not accepted
  Juncus platycephalus Michx. -- not accepted
  Juncus polycephalus Michx. -- accepted -- flatleaf rush, manyhead rush
  Juncus repens Michx. -- accepted -- lesser creeping rush
  Jussiaea grandiflora Michx. -- not accepted
  Jussiaea repens var. grandiflora (Michx.) Micheli -- not accepted
  Justicia humilis Michx. -- not accepted
  Kalmia cuneata Michx. -- accepted -- white-wicky, whitewicky
  Kneiffia glauca (Michx.) Spach -- not accepted
  Kneiffia hybrida (Michx.) Small -- not accepted
  Kneiffia linearis (Michx.) Spach -- not accepted
  Koellia aristata (Michx.) Kuntze -- not accepted
  Koellia montana (Michx.) Kuntze -- not accepted
  Koellia mutica (Michx.) Kuntze -- not accepted
  Koellia verticillata (Michx.) Kuntze -- not accepted
  Krigia amplexicaulis (Michx.) Nutt. -- not accepted
  Krigia montana (Michx.) Nutt. -- accepted -- mountain dwarfdandelion
  Kyllinga pumila Michx. -- accepted -- low spikesedge
  Lacinaria aspera (Michx.) Greene -- not accepted
  Lacinaria aspera var. spheroidea (Michx.) Alexander -- not accepted
  Lacinaria cylindracea (Michx.) Kuntze -- not accepted
  Lacinaria pycnostachya (Michx.) Kuntze -- not accepted
  Lactuca canadensis var. longifolia (Michx.) Farw. -- not accepted -- Canada lettuce
  Lactuca graminifolia Michx. -- accepted -- grass-leaf lettuce, grassleaf lettuce
  Lactuca graminifolia var. graminifolia Michx. -- accepted -- grassleaf lettuce
  Leavenworthia uniflora (Michx.) Britton -- accepted -- Michaux's gladecress
  Lechea racemulosa Michx. -- accepted -- Illinois pinweed
  Lechea tenuifolia Michx. -- accepted -- narrowleaf pinweed
  Ledum palustre var. latifolium (Jacq.) Michx. -- not accepted
  Leersia lenticularis Michx. -- accepted -- catchfly grass
  Leiodon latifolius (Michx.) Shuttlw. -- not accepted
  Leptilon divaricatum (Michx.) Raf. -- not accepted
  Leptochloa mucronata (Michx.) Kunth -- not accepted -- mucronate sprangletop
  Leptochloa mucronata var. mucronata (Michx.) Kunth -- not accepted
  Leptochloa panicea ssp. mucronata (Michx.) Nowack -- accepted -- mucronate sprangletop
  Leptochloa polystachya (Michx.) Kunth -- not accepted
  Leptopoda fimbriata Torr. & A. Gray non Leptopoda fimbriata (Michx.) Eaton -- not accepted
  Lespedeza Michx. -- accepted
  Lespedeza capitata Michx. -- accepted -- roundhead lespedeza
  Lespedeza polystachya Michx. -- not accepted
  Lespedeza procumbens Michx. -- accepted -- trailing lespedeza
  Leucospora multifida (Michx.) Nutt. -- accepted -- narrowleaf paleseed
  Levenworthia uniflora (Michx.) Britton -- not accepted
  Liatris aspera Michx. -- accepted -- rough gayfeather, tall blazing star, tall gayfeather
  Liatris aspera var. aspera Michx. -- not accepted -- tall blazing star, tall gayfeather
  Liatris cylindracea Michx. -- accepted -- Ontario blazing star
  Liatris elegans (Walter) Michx. -- accepted -- pinkscale blazing star, pinkscale gayfeather
  Liatris elegans var. elegans (Walter) Michx. -- accepted -- pinkscale blazing star, pinkscale gayfeather
  Liatris pycnostachya Michx. -- accepted -- cat-tail gayfeather, Kansas gayfeather, prairie blazing star
  Liatris pycnostachya var. pycnostachya Michx. -- accepted -- cattail gayfeather, prairie blazing star
  Liatris scariosa var. squarrulosa (Michx.) A. Gray -- not accepted
  Liatris spheroidea Michx. -- not accepted -- spherical blazing star
  Liatris squarrosa (L.) Michx. -- accepted -- scaly blazing star, scaly gayfeather
  Liatris squarrosa var. squarrosa (L.) Michx. -- accepted -- Alabama blazing star, scaly blazing star
  Liatris squarrulosa Michx. -- accepted -- Appalachian blazing star, Appalachian gayfeather, tall gayfeather
  Liatris X spheroidea Michx. (pro sp.) -- accepted -- spherical blazing star
  Lilaeopsis lineata (Michx.) Greene -- not accepted
  Lilium carolinianum Michx., non Bosc ex Lam. -- not accepted
  Lilium superbum var. carolinianum (Michx.) Chapm. -- not accepted
  Limnetis polystachia (Michx.) Rich. -- not accepted
  Lindernia anagallidea (Michx.) Pennell -- not accepted
  Lindernia dubia var. anagallidea (Michx.) Cooperr. -- not accepted -- false pimpernel, yellow-seed false pimpernel, yellowseed false pimpernel
  Lipocarpha maculata (Michx.) Torr. -- accepted -- American halfchaff sedge
  Lippia lanceolata Michx. -- not accepted
  Lippia nodiflora (L.) Michx. -- not accepted
  Lithospermum angustifolium Michx. -- not accepted
  Lithospermum canescens (Michx.) Lehm. -- accepted -- hoary gromwell, hoary puccoon
  Lithospermum gmelini (Michx.) Hitchc. -- not accepted
  Lithospermum latifolium Michx. -- accepted -- American stoneseed
  Lobelia amoena Michx. -- accepted -- southern lobelia
  Lobelia amoena var. amoena Michx. -- not accepted -- southern lobelia
  Lobelia puberula Michx. -- accepted -- downy lobelia
  Lobelia puberula var. puberula Michx. -- accepted -- downy lobelia
  Lonicera caerulea var. villosa (Michx.) Torr. & A. Gray -- not accepted
  Lonicera villosa (Michx.) Schult. -- accepted -- mountain fly honeysuckle
  Lonicera villosa var. villosa (Michx.) Schult. -- accepted -- mountain fly honeysuckle
  Ludolfia macrosperma (Michx.) Willd. -- not accepted
  Ludwigia grandiflora (Michx.) Greuter & Burdet -- accepted -- large-flower primrose-willow
  Ludwigia grandiflora ssp. grandiflora (Michx.) Greuter & Burdet -- not accepted -- large-flower primrose-willow
  Ludwigia microcarpa Michx. -- accepted -- smallfruit primrose-willow, smallfruit primrosewillow
  Ludwigia virgata Michx. -- accepted -- savannah primrose-willow
  Luziola fluitans (Michx.) Terrell & H. Rob. -- accepted -- southern watergrass
  Luziola fluitans var. fluitans (Michx.) Terrell & H. Rob. -- accepted
  Luzula melanocarpa (Michx.) Desv. -- not accepted
  Luzula parviflora ssp. melanocarpa (Michx.) Hämet-Ahti -- accepted
  Luzula parviflora ssp. melanocarpa (Michx.) Tolm. -- not accepted -- smallflowered woodrush
  Luzula parviflora var. melanocarpa (Michx.) Buchenau -- not accepted
  Lycopodium dendroideum Michx. -- accepted -- tree groundpine
  Lycopodium lucidulum Michx. -- not accepted
  Lycopodium obscurum var. dendroideum (Michx.) D.C. Eaton -- not accepted
  Lycopus uniflorus Michx. -- accepted -- bugleweed, northern bugleweed, northern water-horehound, oneflower bugleweed
  Lycopus uniflorus var. uniflorus Michx. -- accepted -- northern bugleweed
  Lyonia fruticosa (Michx.) G.S. Torr. -- accepted -- coastal plain staggerbush
  Lyonia ligustrina var. foliosiflora (Michx.) Fernald -- accepted -- maleberry, southern maleberry
  Lysimachia hybrida Michx. -- accepted -- lance-leaf loosestrife, lowland yellow loosestrife, lowland yellow-loosestrife, lysimaque hybride, Mississippi loosestrife
  Lysimachia lanceolata ssp. hybrida (Michx.) J.D. Ray -- not accepted
  Lysimachia lanceolata var. hybrida (Michx.) A. Gray -- not accepted
  Macuillamia rotundifolia (Michx.) Raf. -- not accepted
  Magnolia acuminata var. cordata (Michx.) Ser. -- not accepted
  Magnolia cordata Michx. -- not accepted
  Magnolia macrophylla Michx. -- accepted -- bigleaf magnolia
  Malaxis unifolia Michx. -- accepted -- green adder's-mouth orchid, green addersmouth orchid, Malaxis unifolia
  Malus angustifolia (Aiton) Michx. -- accepted -- southern crab apple, southern crabapple
  Malus angustifolia var. angustifolia (Aiton) Michx. -- not accepted -- southern crab apple, southern crabapple
  Manisuris cylindrica (Michx.) Kuntze -- not accepted
  Mayaca aubletii Michx. -- not accepted
  Megastachya canadensis (Michx.) Michx. ex Roem. & Schult. -- not accepted
  Megastachya reptans (Michx.) P. Beauv. -- not accepted
  Meibomia acuminata (Michx.) S.F. Blake -- not accepted
  Meibomia bracteosa (Michx.) Kuntze -- not accepted
  Meibomia glabella (Michx.) Kuntze -- not accepted
  Melampyrum lineare var. americanum (Michx.) Beauverd -- not accepted
  Melanthera deltoidea Michx. -- not accepted
  Melanthera hastata Michx. -- not accepted
  Melanthium parviflorum (Michx.) S. Watson -- not accepted -- Appalachian bunchflower
  Melica curtipendula Michx. ex Steud. -- not accepted
  Melica glabra Michx. -- not accepted
  Melica mutica var. glabra (Michx.) A. Gray -- not accepted
  Mentha arvensis ssp. borealis (Michx.) Roy L. Taylor & MacBryde -- not accepted
  Menziesia pilosa (Michx.) Juss. -- accepted -- minniebush
  Mespilus arborea F. Michx. -- not accepted
  Mespilus arbutifolia var. melanocarpa Michx. -- not accepted
  Mespilus canadensis var. obovalis Michx. -- not accepted
  Micrampelis lobata (Michx.) Greene -- not accepted
  Micranthemum Michx. -- accepted -- mudflower
  Micranthes virginiensis (Michx.) Small -- accepted -- early saxifrage, Virginia saxifrage
  Microstylis unifolia (Michx.) Britton, Sterns & Poggenb. -- not accepted
  Miegia macrosperma (Michx.) Pers. -- not accepted
  Milium paspalodes (Michx.) Elliott -- not accepted
  Mimosa illinoensis Michx. -- not accepted
  Minuartia glabra (Michx.) Mattf. -- accepted -- Appalachian stitchwort
  Minuartia groenlandica ssp. glabra (Michx.) Á. Löve & D. Löve -- not accepted
  Minuartia patula (Michx.) Mattf. -- accepted -- pitcher's stitchwort
  Minuartia patula var. patula (Michx.) Mattf. -- not accepted -- pitcher's stitchwort
  Mirabilis nyctaginea (Michx.) MacMill. -- accepted -- heart-leaf four-o'clock, heart-leaved four o'clock, heartleaf four o'clock, heartleaf four-o'clock, wild four-o'clock
  Mitella prostrata Michx. -- not accepted -- creeping bishop's cap
  Mnesithea cylindrica (Michx.) de Koning & Sosef -- accepted
  Monarda allophylla Michx. -- not accepted
  Monotropa hypopithys ssp. lanuginosa (Michx.) H. Hara -- not accepted
  Monotropa hypopitys ssp. lanuginosa (Michx.) H. Hara -- not accepted
  Monotropa lanuginosa Michx. -- not accepted
  Muhlenbergia minutiflora (Michx.) Hitchc. -- not accepted
  Muhlenbergia racemosa (Michx.) Britton, Sterns & Poggenb. -- accepted -- green muhly, marsh muhly
  Muhlenbergia sericea (Michx.) P.M. Peterson -- accepted
  Muscadinia rotundifolia (Michx.) Small -- not accepted
  Myosotis canescens (Michx.) Lehm. -- not accepted
  Myrica cerifera var. pumila Michx. -- not accepted
  Myriophyllum heterophyllum Michx. -- accepted -- broadleaf water-milfoil, changeleaf parrotfeather, two-leaf water-milfoil, twoleaf watermilfoil
  Myriophyllum scabratum Michx. -- not accepted
  Nabalus asperus (Michx.) Torr. & A. Gray -- not accepted
  Nabalus crepidineus (Michx.) DC. -- not accepted
  Nabalus racemosus (Michx.) DC. -- not accepted
  Nabalus virgatus (Michx.) DC. -- not accepted
  Narthecium glutinosum Michx. -- not accepted
  Narthecium pusillum Michx. -- not accepted
  Nastus macrospermus (Michx.) Raspail -- not accepted
  Neeragrostis reptans (Michx.) Nicora -- not accepted -- creeping lovegrass
  Nemexia pulverulenta (Michx.) Small -- not accepted
  Nemexia tamnifolia (Michx.) Small -- not accepted
  Nevroloma canadensis (Michx.) Raf. -- not accepted
  Nolina Michx. -- accepted -- beargrass
  Nolina georgiana Michx. -- accepted -- Georgia beargrass
  Oakesiella puberula (Michx.) Small -- not accepted
  Oclemena acuminata (Michx.) Greene -- accepted -- whorled wood aster
  Oenothera fremontii var. glauca (Michx.) Straley -- not accepted
  Oenothera fruticosa ssp. glauca (Michx.) Straley -- accepted -- narrowleaf evening primrose, narrowleaf evening-primrose, shrubby sundrops
  Oenothera fruticosa var. linearis (Michx.) S. Watson -- not accepted
  Oenothera tetragona ssp. glauca (Michx.) Munz -- not accepted
  Oenothera tetragona var. hybrida (Michx.) Fernald -- not accepted
  Oldenlandia angustifolia (Michx.) A. Gray -- not accepted
  Oligosporus campestris ssp. caudatus (Michx.) W.A. Weber -- not accepted
  Oligosporus caudatus (Michx.) Poljakov -- not accepted
  Onosmodium Michx. -- accepted -- marbleseed
  Onosmodium molle Michx. -- not accepted -- false gromwell, smooth onosmodium, soft-hair marbleseed, softhair marbleseed
  Onosmodium molle ssp. molle Michx. -- not accepted -- softhair marbleseed
  Orbexilum lupinellum (Michx.) Isely -- accepted -- Piedmont leather-root
  Orchidocarpum parviflorum Michx. -- not accepted
  Oryzopsis Michx. -- accepted -- ricegrass
  Oryzopsis aspera Michx. ex Muhl. -- not accepted
  Oryzopsis asperifolia Michx. -- accepted -- roughleaf ricegrass, white-grain mountain-rice gras
  Osmorhiza claytonii (Michx.) C.B. Clarke -- accepted -- Clayton's sweetroot, hairy sweet-cicely
  Otophylla auriculata (Michx.) Small -- not accepted
  Oxybaphus nyctagineus (Michx.) Sweet -- not accepted
  Oxycoccus erythrocarpus (Michx.) Pers. -- not accepted
  Oxycoccus ovalifolius (Michx.) A.E. Porsild -- not accepted
  Oxycoccus palustris var. ovalifolius (Michx.) F. Seym. -- not accepted
  Oxytria crocea (Michx.) Raf. -- not accepted
  Pachysandra Michx. -- accepted
  Pachysandra procumbens Michx. -- accepted -- Allegheny-spurge
  Packera paupercula (Michx.) Á. Löve & D. Löve -- accepted -- balsam groundsel
  Packera paupercula var. paupercula (Michx.) Á. Löve & D. Löve -- accepted
  Packera tomentosa (Michx.) C. Jeffrey -- accepted -- woolly ragwort
  Panicularia canadensis (Michx.) Kuntze -- not accepted
  Panicularia melicaria (Michx.) Hitchc. -- not accepted
  Panicum anceps Michx. -- not accepted -- beaked panicgrass, beaked panicum
  Panicum anceps ssp. anceps Michx. -- not accepted
  Panicum anceps var. anceps Michx. -- not accepted
  Panicum barbatum Michx. -- not accepted
  Panicum barbulatum Michx. -- not accepted
  Panicum dichotomiflorum Michx. -- accepted -- fall panic, fall panicgrass, fall panicum, western witchgrass
  Panicum dichotomiflorum ssp. dichotomiflorum Michx. -- accepted
  Panicum dichotomiflorum var. dichotomiflorum Michx. -- not accepted -- fall panicgrass, fall panicum, western witchgrass
  Panicum dichotomum var. barbulatum (Michx.) Alph. Wood -- not accepted
  Panicum divaricatum Michx. -- not accepted
  Panicum melicarium Michx. -- not accepted
  Panicum molle Michx. -- not accepted
  Panicum muricatum Michx. -- not accepted
  Panicum nitidum var. barbulatum (Michx.) Chapm. -- not accepted
  Panicum pauciflorum Michx. -- not accepted
  Panicum plicatulum (Michx.) Kuntze -- not accepted
  Panicum pubescens var. barbulatum (Michx.) Britton -- not accepted
  Panicum ramulosum Michx. -- not accepted
  Parnassia caroliniana Michx. -- accepted -- Carolina grass of Parnassus, Carolina grass-of-parnassus
  Paronychia argyrocoma (Michx.) Nutt. -- accepted -- silvery nailwort
  Paronychia dichotoma (Michx.) A. Nelson -- not accepted
  Paronychia herniarioides (Michx.) Nutt. -- accepted -- coastal plain nailwort, coastalplain nailwort
  Paspalum ciliatifolium Michx. -- not accepted
  Paspalum ciliatifolium var. ciliatifolium Michx. -- not accepted
  Paspalum debile Michx. -- not accepted
  Paspalum distichum ssp. paspalodes (Michx.) Thell. -- not accepted
  Paspalum floridanum Michx. -- accepted -- Florida paspalum
  Paspalum floridanum var. floridanum Michx. -- accepted
  Paspalum laeve Michx. -- accepted -- field paspalum
  Paspalum laeve var. floridanum (Michx.) Alph. Wood -- not accepted
  Paspalum laeve var. laeve Michx. -- not accepted -- field paspalum
  Paspalum paspalodes (Michx.) Scribn. -- not accepted
  Paspalum paspalodes var. paspalodes (Michx.) Scribn. -- not accepted
  Paspalum paspaloides (Michx.) Scribn. -- not accepted
  Paspalum plicatulum Michx. -- accepted -- brownseed paspalum
  Paspalum plicatulum ssp. plicatulum Michx. -- not accepted
  Paspalum plicatulum var. plicatulum Michx. -- not accepted
  Paspalum setaceum Michx. -- accepted -- fringeleaf paspalum, sand paspalum, slender crown grass, thin paspalum
  Paspalum setaceum var. ciliatifolium (Michx.) Vasey -- accepted
  Paspalum setaceum var. setaceum Michx. -- accepted
  Pedicularis gladiata Michx. -- not accepted
  Pedicularis lanceolata Michx. -- accepted -- swamp lousewort
  Pediomelum canescens (Michx.) Rydb. -- accepted -- buckroot
  Peltandra sagittifolia (Michx.) Morong -- accepted -- white arrow arum
  Persicaria amphibia var. emersa (Michx.) J.C. Hickman -- not accepted
  Persicaria hydropiperoides (Michx.) Small -- accepted -- swamp smartweed
  Petalostemon candidus Michx. -- not accepted
  Petalostemon carneus Michx. -- not accepted
  Phacelia bipinnatifida Michx. -- accepted -- fernleaf phacelia
  Phacelia fimbriata Michx. -- accepted -- fringed phacelia
  Phaeoceros carolinianus (Michx.) Prosk. -- accepted -- Carolina phaeoceros
  Phaeoceros laevis ssp. carolinianus (Michx.) Prosk. -- not accepted -- Carolina phaeoceros
  Phaeoceros laevis ssp. carolinianus (Michx.) Prosk. -- not accepted
  Phaethusa helianthoides (Michx.) Britton -- not accepted
  Phalaris villosa Michx. -- not accepted
  Phegopteris connectilis (Michx.) Watt -- accepted -- long beech fern, narrow beech fern, northern beech fern
  Phegopteris hexagonoptera (Michx.) Fée -- accepted -- broad beech fern, phégoptčre ŕ hexagones, southern beech fern
  Philonotis longiseta (Michx.) Britt. -- accepted -- philonotis moss
  Philotria canadensis (Michx.) Britton -- not accepted
  Phlox carolina var. triflora (Michx.) Steyerm. -- not accepted
  Phlox glaberrima ssp. triflora (Michx.) Wherry -- accepted -- smooth phlox
  Phlox glaberrima var. triflora (Michx.) Reveal & Broome -- not accepted
  Phlox latifolia Michx. -- accepted -- wideflower phlox
  Phlox pilosa var. virens (Michx.) Wherry -- not accepted
  Photinia melanocarpa (Michx.) K.R. Robertson & J.B. Phipps -- not accepted -- black chokeberry
  Phyla lanceolata (Michx.) Greene -- accepted -- frog fruit, lanceleaf fogfruit, lanceleaf frog fruit, lanceleaf frogfruit, northern fogfruit
  Physalis barbadensis var. glabra (Michx.) Fernald -- not accepted
  Physalis barbadensis var. obscura (Michx.) Rydb. -- not accepted
  Physalis lanceolata Michx. -- accepted -- lanceleaf groundcherry, sword groundcherry
  Physalis pubescens var. glabra (Michx.) Waterf. -- not accepted
  Physcomitrium turbinatum (Michx.) Britt. -- not accepted
  Pinckneya Michx. -- accepted
  Pinckneya pubens Michx. -- not accepted
  Pinguicula pumila Michx. -- accepted -- small butterwort
  Pinus australis Michx. f. -- not accepted
  Pinus rigida ssp. serotina (Michx.) R.T. Clausen -- not accepted
  Pinus serotina Michx. -- accepted -- marsh pine, pocosin pine, pond pine
  Pityopsis graminifolia (Michx.) Nutt. -- accepted -- narrowleaf silkgrass
  Pityopsis graminifolia var. graminifolia (Michx.) Nutt. -- accepted -- narrowleaf silkgrass
  Plantago aristata Michx. -- accepted -- bottlebrush Indianwheat, largebracted plantain
  Plantago patagonica var. aristata (Michx.) A. Gray -- not accepted
  Plantago sparsiflora Michx. -- accepted -- pineland plantain
  Platanthera clavellata (Michx.) Luer -- not accepted -- green woodland orchid, small green wood orchid
  Platanthera cristata (Michx.) Lindl. -- accepted -- crested yellow orchid
  Platanthera lacera (Michx.) G. Don -- accepted -- green fringed orchid
  Platanthera lacera var. lacera (Michx.) G. Don -- not accepted -- green fringed orchid
  Pleea Michx. -- accepted -- pleea
  Pleea tenuifolia Michx. -- accepted -- rush featherling
  Poa caerulescens Michx. ex P. Beauv. -- not accepted
  Poa canadensis (Michx.) Torr. -- not accepted
  Poa crocata Michx. -- not accepted
  Poa dioica Michx. ex Poir. -- not accepted
  Poa glauca var. crocata (Michx.) M.E. Jones -- not accepted
  Poa hirsuta Michx. -- not accepted
  Poa melicoides (Michx.) Nutt. -- not accepted
  Poa obtusata (Michx.) Link -- not accepted
  Poa pectinacea Michx. -- not accepted
  Poa reptans Michx. -- not accepted
  Poa sesleroides Michx. -- not accepted
  Poa striata Michx. -- not accepted
  Podostemum Michx. -- accepted -- riverweed
  Podostemum ceratophyllum Michx. -- accepted -- hornleaf riverweed, podostémon ŕ feuilles cornées, threadfoot
  Pogonatum brachyphyllum (Michx.) P. Beauv. -- accepted -- pogonatum moss
  Pogonatum capillare (Michx.) Brid. -- not accepted
  Poinsettia cyathophora var. graminifolia (Michx.) Mohlenbr. -- not accepted
  Poinsettia dentata (Michx.) Klotzsch & Garcke -- not accepted
  Pollinia scoparia (Michx.) Spreng. -- not accepted
  Polygala nana (Michx.) DC. -- accepted -- candyroot
  Polygala setacea Michx. -- accepted -- coastal plain milkwort
  Polygonella Michx. -- accepted -- jointweed
  Polygonum amphibium var. emersum Michx. -- not accepted -- colored smartweed, devil's shoestring, longroot smartweed, swamp smartweed, tanweed
  Polygonum cilinode Michx. -- not accepted -- fringed black bindweed
  Polygonum hydropiperoides Michx. -- not accepted -- swamp smartweed
  Polygonum hydropiperoides var. hydropiperoides Michx. -- not accepted
  Polygonum ramosissimum Michx. -- accepted -- bushy knotweed, tall knotweed, yellow knotweed, yellow-flower knotweed
  Polygonum ramosissimum ssp. ramosissimum Michx. -- accepted -- bushy knotweed
  Polygonum ramosissimum var. ramosissimum Michx. -- not accepted -- bushy knotweed, yellow-flower knotweed
  Polygonum tenue Michx. -- accepted -- pleatleaf knotweed
  Polygonum tenue var. tenue Michx. -- not accepted -- pleatleaf knotweed
  Polyonum hydropiperoides Michx. -- not accepted
  Polyonum hydropiperoides var. hydropiperoides Michx. -- not accepted
  Polypogon racemosus (Michx.) Nutt. -- not accepted
  Polypogon sericeus (Michx.) Spreng. -- not accepted
  Polystichum acrostichoides (Michx.) Schott -- accepted -- Christmas fern
  Polystichum acrostichoides var. acrostichoides (Michx.) Schott -- not accepted -- Christmas fern
  Polytrichum capillare Michx. -- not accepted
  Polytrichum commune var. perigoniale (Michx.) Hampe -- accepted -- polytrichum moss
  Populus argentea Michx. f. -- not accepted
  Populus grandidentata Michx. -- accepted -- bigtooth aspen
  Populus tremula ssp. tremuloides (Michx.) Á. Löve & D. Löve -- not accepted
  Populus tremuloides Michx. -- accepted -- quaking aspen
  Porsildia groenlandica ssp. glabra (Michx.) Á. Löve & D. Löve -- not accepted
  Potentilla canadensis var. simplex (Michx.) Torr. & A. Gray -- not accepted
  Potentilla norvegica ssp. hirsuta (Michx.) Hyl. -- not accepted -- Norwegian cinquefoil
  Potentilla norvegica var. hirsuta (Michx.) Lehm. -- not accepted
  Potentilla simplex Michx. -- accepted -- common cinquefoil, oldfield cinquefoil, oldfield fivefingers, spreading cinquefoil
  Prenanthes aspera Michx. -- accepted -- rough rattlesnakeroot
  Prenanthes crepidinea Michx. -- accepted -- nodding rattlesnakeroot
  Prenanthes racemosa Michx. -- accepted -- purple rattlesnake-root, purple rattlesnakeroot
  Prenanthes racemosa ssp. racemosa Michx. -- not accepted -- purple rattlesnakeroot
  Prenanthes racemosa ssp. racemosa var. racemosa Michx. -- not accepted -- purple rattlesnakeroot
  Prenanthes racemosa var. racemosa Michx. -- not accepted
  Prenanthes virgata Michx. -- not accepted
  Primula mistassinica Michx. -- accepted -- bird's-eye primrose, Mistassini primrose
  Primula mistassinica var. mistassinica Michx. -- not accepted -- Lake Mistassini primrose
  Prosartes lanuginosa (Michx.) D. Don -- accepted -- yellow fairybells
  Psoralea canescens Michx. -- not accepted
  Psoralea lupinella Michx. -- not accepted
  Psoralea lupinellus Michx. -- not accepted
  Pteretis nodulosa (Michx.) Nieuwl. -- not accepted
  Pterocaulon pycnostachyum (Michx.) Elliot -- accepted -- dense-spike blackroot
  Pterophyton helianthoides (Michx.) Alexander -- not accepted
  Ptilimnium capillaceum (Michx.) Raf. -- accepted -- herbwilliam, threadleaf mockbishopweed
  Pycnanthemum Michx. -- accepted -- mountainmint
  Pycnanthemum aristatum Michx. -- not accepted
  Pycnanthemum incanum (L.) Michx. -- accepted -- hoary mountainmint
  Pycnanthemum incanum var. incanum (L.) Michx. -- accepted -- hoary mountainmint
  Pycnanthemum montanum Michx. -- accepted -- thinleaf mountainmint
  Pycnanthemum muticum (Michx.) Pers. -- accepted -- clustered mountainmint
  Pycnanthemum verticillatum (Michx.) Pers. -- accepted -- whorled mountainmint
  Pycnanthemum verticillatum var. verticillatum (Michx.) Pers. -- not accepted -- whorled mountainmint
  Pycnanthemum virginianum var. verticillatum (Michx.) B. Boivin -- not accepted
  Pycreus flavicomus (Michx.) C.D. Adams -- not accepted
  Pylaisiadelpha recurvans (Michx.) Buck -- not accepted
  Pylostachya nana (Michx.) Raf. -- not accepted
  Pyrola asarifolia Michx. -- accepted -- bog wintergreen, liverleaf wintergreen, pink wintergreen
  Pyrola asarifolia ssp. asarifolia Michx. -- accepted -- bog wintergreen, liverleaf wintergreen
  Pyrola rotundifolia ssp. asarifolia (Michx.) A. Löve & D. Löve -- not accepted
  Pyrola rotundifolia var. asarifolia (Michx.) Hook. -- not accepted
  Pyrularia Michx. -- accepted
  Pyrularia pubera Michx. -- accepted -- buffalo nut
  Pyrus melanocarpa (Michx.) Willd. -- not accepted
  Pyxidanthera Michx. -- accepted -- pixiemoss
  Pyxidanthera barbulata Michx. -- accepted -- flowering pixiemoss
  Pyxidanthera barbulata var. barbulata Michx. -- not accepted -- flowering pixiemoss
  Quercus acuminata (Michx.) Houba -- not accepted
  Quercus borealis F. Michx. -- not accepted
  Quercus catesbaei Michx. -- not accepted
  Quercus cinerea Michx. -- not accepted
  Quercus falcata Michx. -- accepted -- southern red oak
  Quercus falcata var. triloba (Michx.) Nutt. -- not accepted
  Quercus hemisphaerica var. maritima (Michx.) C.H. Mull. -- not accepted -- Darlington's oak
  Quercus imbricaria Michx. -- accepted -- shingle oak
  Quercus laurifolia Michx. -- accepted -- laurel oak
  Quercus macrocarpa Michx. -- accepted -- bur oak
  Quercus macrocarpa var. macrocarpa Michx. -- not accepted -- bur oak
  Quercus macrocarpa var. oliviformis (Michx. f.) A. Gray -- not accepted
  Quercus maritima (Michx.) Willd. -- not accepted
  Quercus phellos var. laurifolia (Michx.) Chapm. -- not accepted
  Quercus prinoides var. acuminata (Michx.) Gleason -- not accepted
  Quercus rubra var. borealis (F. Michx.) Farw. -- not accepted
  Quercus triloba Michx. -- not accepted
  Quercus virginiana var. maritima (Michx.) Sarg. -- not accepted
  Quercus X heterophylla F. Michx. (pro sp.) -- accepted -- oddleaf oak
  Rabdochloa mucronata (Michx.) P. Beauv. -- not accepted
  Ranunculus filiformis Michx. -- not accepted
  Ranunculus flammula var. filiformis (Michx.) Hook. -- not accepted -- greater creeping spearwort
  Ranunculus hispidus Michx. -- accepted -- bristly buttercup
  Ranunculus hispidus var. hispidus Michx. -- accepted -- bristly buttercup
  Ranunculus reptans var. filiformis (Michx.) DC. -- not accepted
  Reboulea obtusata (Michx.) A. Gray -- not accepted
  Reboulea obtusata var. obtusata (Michx.) A. Gray -- not accepted
  Reynoutria cilinodis (Michx.) Shinners -- not accepted
  Rhamnus minutiflora Michx. -- not accepted
  Rhaphidostegium recurvans (Michx.) Jaeg. -- not accepted
  Rhexia ciliosa Michx. -- not accepted
  Rhexia glabella Michx. -- not accepted
  Rhexia mariana var. exalbida Michx. -- not accepted
  Rhexia mariana var. purpurea Michx. -- not accepted
  Rhododendron calendulaceum (Michx.) Torr. -- accepted -- flame azalea
  Rhododendron canescens (Michx.) Sweet -- accepted -- mountain azalea, Piedmont azalea, southern pinxterbloom azalea
  Rhododendron canescens var. canescens (Michx.) Sweet -- not accepted -- mountain azalea
  Rhododendron catawbiense Michx. -- accepted -- Catawba rhododendron, Catawba rosebay, mountain rosebay, purple laurel
  Rhododendron flammeum (Michx.) Sarg. -- accepted -- Oconee azalea, Piedmont azalea
  Rhododendron minus Michx. -- accepted -- Piedmont rhododendron
  Rhododendron minus var. minus Michx. -- accepted -- Carolina azalea, Piedmont rhododendron
  Rhododendron periclymenoides (Michx.) Shinners -- accepted -- pink azalea, pinxterbloom azalea
  Rhododendron viscosum var. glaucum (Michx.) A. Gray -- not accepted
  Rhus radicans var. vulgaris (Michx.) DC. -- not accepted
  Rhus toxicodendron var. vulgaris Michx. -- not accepted
  Rhynchosia tomentosa var. monophylla (Michx.) Torr. & A. Gray -- not accepted
  Rhynchosia tomentosa var. volubilis (Michx.) Torr. & A. Gray -- not accepted
  Rhynchospora capitellata (Michx.) Vahl -- accepted -- brownish beakrush, brownish beaksedge
  Rhynchospora ciliaris (Michx.) C. Mohr -- accepted -- fringed beaksedge
  Rhynchospora distans (Michx.) Vahl -- not accepted
  Rhynchospora fascicularis (Michx.) Vahl -- accepted -- fascicled beaksedge
  Rhynchospora fascicularis var. distans (Michx.) Chapm. -- not accepted -- fascicled beaksedge
  Rhynchospora fascicularis var. fascicularis (Michx.) Vahl -- not accepted -- fascicled beaksedge
  Rhynchospora glomerata var. capitellata (Michx.) Kük. -- not accepted
  Rhynchospora inexpansa (Michx.) Vahl -- accepted -- nodding beaksedge
  Rhynchospora rariflora (Michx.) Elliott -- accepted -- fewflower beaksedge
  Rhytidomene lupinellus (Michx.) Rydb. -- not accepted
  Ribes hirtellum Michx. -- accepted -- hairy-stem gooseberry, hairystem gooseberry
  Ribes oxyacanthoides var. hirtellum (Michx.) Scoggan -- not accepted
  Ribes rotundifolium Michx. -- accepted -- Appalachian gooseberry
  Ribes triste var. albinervium (Michx.) Fernald -- not accepted
  Rorippa teres (Michx.) Stuckey -- accepted -- southern marsh yellowcress
  Rosa caroliniana Michx. -- not accepted
  Rosa laevigata Michx. -- accepted -- Cherokee rose
  Rosa pensylvanica Michx. -- not accepted
  Rosa setigera Michx. -- accepted -- climbing rose, Prairie rose
  Rosa setigera var. setigera Michx. -- not accepted -- climbing rose
  Rottboellia cylindrica (Michx.) Torr. -- not accepted
  Rubia brownei Michx. -- not accepted
  Rubus acaulis Michx. -- not accepted
  Rubus arcticus ssp. acaulis (Michx.) Focke -- accepted -- dwarf raspberry
  Rubus arcticus var. acaulis (Michx.) B. Boivin -- not accepted
  Rubus hispidus var. obovalis (Michx.) Fernald -- not accepted
  Rubus idaeus ssp. strigosus (Michx.) Focke -- not accepted -- common red raspberry, grayleaf raspberry, grayleaf red raspberry, red raspberry
  Rubus idaeus var. strigosus (Michx.) Maxim. -- not accepted
  Rubus saxatilis var. canadensis Michx. -- not accepted
  Rubus strigosus Michx. -- not accepted
  Rubus trivialis Michx. -- accepted -- southern dewberry
  Rudbeckia fulgida var. spathulata (Michx.) Perdue -- accepted -- orange coneflower
  Rudbeckia spathulata Michx. -- not accepted
  Ruellia humistrata Michx. -- not accepted
  Ruellia oblongifolia Michx. -- not accepted
  Sabatia campanulata var. gracilis (Michx.) Fernald -- not accepted
  Sabatia chloroides (Michx.) Pursh -- not accepted
  Sabatia gracilis (Michx.) Salisb. -- not accepted
  Sabatia paniculata (Michx.) Pursh -- not accepted
  Sabatia paniculata auct. non (Michx.) Pursh -- not accepted
  Sabulina glabra (Michx.) Small -- not accepted
  Sabulina patula (Michx.) Small -- not accepted
  Sabulina stricta (Michx.) Small -- not accepted
  Saccharodendron barbatum (Michx.) Nieuwl. -- not accepted
  Saccharodendron nigrum (F. Michx.) Small -- not accepted
  Saccharum alopecuroides subvar. brevibarbe (Michx.) Roberty -- not accepted
  Saccharum brevibarbe (Michx.) Pers. -- accepted -- shortbeard plumegrass
  Saccharum brevibarbe var. brevibarbe (Michx.) Pers. -- accepted -- shortbeard plumegrass
  Sageretia minutiflora (Michx.) C. Mohr -- accepted -- smallflower mock buckthorn
  Sagittaria graminea Michx. -- accepted -- grass-leaf arrowhead, grassy arrowhead, Sagittaire a feuilles de graminees, sagittaire ŕ feuilles de graminées
  Sagittaria graminea ssp. graminea Michx. -- accepted -- grassy arrowhead, Sagittaire graminoide
  Sagittaria graminea var. graminea Michx. -- not accepted -- grassy arrowhead
  Sagittaria subulata var. natans (Michx.) J.G. Sm. -- not accepted
  Salicornia ambigua Michx. -- not accepted
  Salix caroliniana Michx. -- accepted -- coastal plain willow
  Salix cordata Michx. -- accepted -- heartleaf willow
  Salix discolor var. eriocephala (Michx.) Andersson -- not accepted
  Salix eriocephala Michx. -- accepted -- Missouri River willow, Missouri willow
  Salix ligustrina F. Michx. -- not accepted
  Salix longirostris Michx. -- not accepted
  Salvia azurea Michx. ex Lam. -- accepted -- azure blue sage, blue sage
  Salvia azurea var. azurea Michx. ex Lam. -- accepted -- azure blue sage
  Sambucus pubens Michx. -- not accepted
  Sambucus racemosa ssp. pubens (Michx.) House -- accepted
  Sambucus racemosa ssp. pubens var. pubens (Michx.) Koehne -- not accepted
  Sambucus racemosa var. pubens (Michx.) Koehne -- accepted -- European red elderberry
  Sarracenia psittacina Michx. -- accepted -- parrot pitcherplant
  Satureja caroliniana auct. non (Michx.) Briq. -- not accepted
  Satureja glabella (Michx.) Briq. -- not accepted
  Saxifraga virginiensis Michx. -- not accepted -- early saxifrage
  Saxifraga virginiensis var. virginiensis Michx. -- not accepted -- early saxifrage
  Sceptridium lunarioides (Michx.) Holub -- not accepted
  Schisandra Michx. -- accepted
  Schisandra coccinea Michx. -- not accepted
  Schizachne stricta (Michx.) Hultén -- not accepted
  Schizachyrium scoparium (Michx.) Nash -- accepted -- little bluestem
  Schizachyrium scoparium ssp. scoparium (Michx.) Nash -- not accepted -- little bluestem
  Schizachyrium scoparium var. scoparium (Michx.) Nash -- accepted -- little bluestem
  Schoenocaulon dubium (Michx.) Small -- accepted -- Florida feathershank
  Schoenolirion croceum (Michx.) Alph. Wood -- accepted -- yellow sunnybell
  Schoenus fascicularis Michx. -- not accepted
  Schoenus rariflorus Michx. -- not accepted
  Scirpus castaneus Michx. -- not accepted
  Scirpus cyperinus var. eriophorum (Michx.) Kunth -- not accepted
  Scirpus eriophorum Michx. -- not accepted
  Scirpus hudsonianus (Michx.) Fernald -- not accepted
  Scirpus lineatus Michx. -- accepted -- drooping bulrush
  Scirpus lineatus auct. non Michx. -- not accepted -- drooping bulrush
  Scirpus maritimus var. macrostachyus Michx. -- not accepted
  Scirpus puberulus Michx. -- not accepted
  Scirpus quadrangulatus Michx. -- not accepted
  Scirpus quadrangulatus Muhl., non Michx. -- not accepted
  Scirpus scirpoideus (Michx.) T. Koyama -- not accepted
  Scirpus tuberculosa Michx. -- not accepted
  Scleria ciliata Michx. -- accepted -- fringed nutrush
  Scleria ciliata var. ciliata Michx. -- accepted -- fringed nutrush
  Scleria oligantha Michx. -- accepted -- littlehead nutrush
  Scleria reticularis Michx. -- accepted -- netted nutrush
  Scleria reticularis var. reticularis Michx. -- not accepted -- netted nutrush
  Scleria triglomerata Michx. -- accepted -- whip nutrush
  Scutellaria parvula Michx. -- accepted -- small skullcap
  Scutellaria parvula var. parvula Michx. -- accepted -- small skullcap
  Scutellaria pilosa Michx. -- not accepted
  Sebastiania ligustrina (Michx.) Müll. Arg. -- not accepted
  Secula viscidula (Michx.) Small -- not accepted
  Sedum pulchellum Michx. -- accepted -- widowscross
  Sedum pusillum Michx. -- accepted -- granite stonecrop
  Sedum telephioides Michx. -- not accepted -- Allegheny stonecrop
  Sedum ternatum Michx. -- accepted -- woodland stonecrop
  Sematophyllum adnatum (Michx.) Britt. -- accepted -- sematophyllum moss
  Senecio pauperculus Michx. -- not accepted -- balsam groundsel
  Senecio tomentosus Michx. -- not accepted -- woolly ragwort
  Serenoa serrulata (Michx.) G. Nicholson -- not accepted
  Sericocarpus tortifolius (Michx.) Nees -- accepted -- Dixie whitetop aster
  Sicyos lobata Michx. -- not accepted
  Sida alcaeoides Michx. -- not accepted
  Sideroxylon lanuginosum Michx. -- accepted -- gum bully
  Sideroxylon lanuginosum ssp. lanuginosum Michx. -- accepted -- chittamwood, gum bully, gum bumelia, woollybucket bumelia
  Sideroxylon reclinatum Michx. -- accepted -- Florida bully
  Sideroxylon reclinatum ssp. reclinatum Michx. -- accepted -- Florida bully
  Sieglingia sesleroides (Michx.) Scribn. -- not accepted
  Sieversia radiata (Michx.) G. Don -- not accepted
  Silene caroliniana ssp. pensylvanica (Michx.) R.T. Clausen -- accepted -- Pennsylvania catchfly
  Silene caroliniana var. pensylvanica (Michx.) Fernald -- not accepted
  Silene pensylvanica Michx. -- not accepted
  Silphium compositum Michx. -- accepted -- kidneyleaf rosinweed
  Silphium compositum var. compositum Michx. -- not accepted -- kidneyleaf rosinweed
  Silphium integrifolium Michx. -- accepted -- wholeleaf rosinweed
  Silphium integrifolium var. integrifolium Michx. -- accepted -- wholeleaf rosinweed
  Sisyrinchium mucronatum Michx. -- accepted -- needle-tip blue-eyed-grass, needletip blue-eyed grass
  Smilax herbacea var. pulverulenta (Michx.) A. Gray -- not accepted
  Smilax pulverulenta Michx. -- accepted -- downy carrionflower
  Smilax tamnifolia Michx. -- not accepted
  Solidago glomerata Michx. -- accepted -- clustered goldenrod
  Solidago graminifolia var. major (Michx.) Fernald -- not accepted
  Solidago minor (Michx.) Fernald -- not accepted
  Solidago pauciflosculosa Michx. -- not accepted
  Sophronanthe pilosa (Michx.) Small -- not accepted
  Sorbus melanocarpa (Michx.) Heynh. -- not accepted
  Sorengia anceps (Michx.) Zuloaga & Morrone -- not accepted
  Sorengia anceps ssp. anceps (Michx.) Zuloaga & Morrone -- not accepted
  Sorghastrum avenaceum (Michx.) Nash -- not accepted
  Sorghum avenaceum (Michx.) Chapm. -- not accepted
  Sorghum nutans ssp. avenaceum (Michx.) Hack. -- not accepted
  Sorghum nutans subvar. avenaceum (Michx.) Roberty -- not accepted
  Sorghum scoparium (Michx.) Kuntze -- not accepted
  Sparganium angustifolium Michx. -- accepted -- narrowleaf bur-reed, narrowleaf burr reed, narrowleaf burreed
  Sparganium emersum var. angustifolium (Michx.) Roy L. Taylor & MacBryde -- not accepted
  Spartina cynosuroides var. polystachya (Michx.) Beal -- not accepted
  Spartina juncea (Michx.) Willd. -- not accepted
  Spartina patens var. juncea (Michx.) Hitchc. -- not accepted
  Spartina polystachya (Michx.) P. Beauv. -- not accepted
  Spergulastrum lanceolatum Michx. -- not accepted
  Spergulastrum lanuginosum Michx. -- not accepted
  Spermacoce glabra Michx. -- accepted -- buttonplant, smooth false buttonweed
  Sphenopholis obtusata (Michx.) Scribn. -- accepted -- prairie wedgegrass, prairie wedgescale
  Sphenopholis obtusata f. obtusata (Michx.) Scribn. -- not accepted
  Sphenopholis obtusata var. obtusata (Michx.) Scribn. -- not accepted
  Sphenopholis palustris (Michx.) Scribn. -- not accepted
  Sporobolus junceus (Michx.) Kunth -- not accepted
  Stachys aspera Michx. -- accepted -- hyssopleaf hedgenettle
  Stachys hyssopifolia Michx. -- accepted -- hyssopleaf hedgenettle
  Stachys hyssopifolia var. hyssopifolia Michx. -- not accepted -- hyssopleaf hedgenettle
  Stachys tenuifolia var. aspera (Michx.) Fernald -- not accepted
  Steironema heterophyllum (Michx.) Raf. ex B.D. Jacks. -- not accepted
  Steironema hybridum (Michx.) Raf. ex B.D. Jacks. -- not accepted
  Steironema lanceolatum var. hybridum (Michx.) A. Gray -- not accepted
  Stellaria pubera Michx. -- accepted -- star chickweed
  Stipa barbata Michx. -- not accepted
  Stipa cericea Michx. ex Raf. -- not accepted
  Stipa juncea Michx. -- not accepted
  Stipa sericea Michx. -- not accepted
  Stipulicida Michx. -- accepted
  Stipulicida setacea Michx. -- accepted -- pineland scalypink
  Stipulicida setacea var. setacea Michx. -- accepted -- pineland scalypink
  Stomoisia cornuta (Michx.) Raf. -- not accepted
  Streptopus Michx. -- accepted -- twisted stalk, twistedstalk
  Streptopus lanceolatus var. roseus (Michx.) Reveal -- accepted -- twistedstalk
  Streptopus lanuginosus Michx. -- not accepted
  Streptopus roseus Michx. -- not accepted
  Streptopus roseus var. roseus Michx. -- not accepted -- rosy twistedstalk
  Stylisma trichosanthes (Michx.) House -- not accepted
  Stylophorum diphyllum (Michx.) Nutt. -- accepted -- celandine poppy
  Stylosanthes biflora var. hispidissima (Michx.) Pollard & C.R. Ball -- not accepted
  Styrax americanus var. pulverulentus (Michx.) Rehder -- not accepted
  Styrax pulverulentus Michx. -- not accepted
  Swida asperifolia (Michx.) Small -- not accepted
  Swida stolonifera (Michx.) Rydb. -- not accepted
  Symphoricarpos racemosus Michx. -- not accepted
  Symphoricarpos vulgaris Michx. -- not accepted
  Symphyotrichum subulatum (Michx.) G.L. Nesom -- accepted -- eastern annual saltmarsh aster
  Symphyotrichum subulatum var. subulatum (Michx.) G.L. Nesom -- accepted -- eastern annual saltmarsh aster
  Synadra hispidula (Michx.) Britton -- not accepted
  Synandra hispidula (Michx.) Britton -- not accepted -- Guyandotte beauty
  Synandra hispidula (Michx.) Baill. -- accepted
  Syngonanthus flavidulus (Michx.) Ruhland -- accepted -- yellow hatpins
  Tephrosia hispidula (Michx.) Pers. -- accepted -- sprawling hoarypea
  Tetrorum pusillum (Michx.) Rose -- not accepted
  Thaspium barbinode (Michx.) Nutt. -- accepted -- hairyjoint meadowparsnip, hairyspine thaspium
  Thelypodium pinnatifidum (Michx.) S. Watson -- not accepted
  Thelypteris hexagonoptera (Michx.) Weath. -- not accepted
  Thelypteris thelypterioides (Michx.) Holub -- not accepted
  Thelypteris thelypteroides (Michx.) Holub -- not accepted
  Thermopsis mollis (Michx.) M.A. Curtis ex A. Gray -- accepted -- Allegheny Mountain goldenbanner
  Thermopsis mollis var. mollis (Michx.) M.A. Curtis ex A. Gray -- not accepted -- Allegheny Mountain goldenbanner
  Tiniaria cilinodis (Michx.) Small -- not accepted
  Tithymalopsis mercurialina (Michx.) Small -- not accepted
  Tofieldia glutinosa (Michx.) Pers. -- not accepted -- sticky false asphodel, sticky tofieldia
  Tofieldia glutinosa ssp. glutinosa (Michx.) Pers. -- not accepted -- sticky tofieldia
  Tofieldia pusilla (Michx.) Pers. -- accepted -- Scotch false asphodel
  Tofieldia racemosa var. glutinosa (Michx.) H.E. Ahles -- not accepted
  Tofieldia tenuifolia (Michx.) Utech -- not accepted
  Tomanthera auriculata (Michx.) Raf. -- not accepted -- auriculate false-foxglove
  Toxicodendron quercifolia (Michx.) Greene -- not accepted
  Toxicodendron quercifolium (Michx.) Greene -- not accepted
  Trachynotia Michx. -- not accepted
  Trachynotia cynosuroides (L.) Michx. -- not accepted
  Trachynotia juncea Michx. -- not accepted
  Trachynotia polystachya Michx. -- not accepted
  Tracyanthus angustifolius (Michx.) Small -- not accepted
  Tragia cordata Michx. -- accepted -- heartleaf noseburn
  Tragia urticifolia Michx. -- accepted -- nettleleaf noseburn
  Tragiola pilosa (Michx.) Small & Pennell -- not accepted
  Trematodon Michx. -- accepted -- trematodon moss
  Trematodon longicollis Michx. -- accepted -- trematodon moss
  Triantha glutinosa (Michx.) Baker -- accepted -- sticky tofieldia
  Trichodium Michx. -- not accepted
  Trichodium altissimum (Walter) Michx. ex Alph. Wood -- not accepted
  Trichodium decumbens Michx. -- not accepted
  Trichodium laxiflorum Michx. -- not accepted
  Trifolium carolinianum Michx. -- accepted -- Carolina clover
  Trillium grandiflorum (Michx.) Salisb. -- accepted -- great white trillium, snow trillium, white trillium, white wakerobin
  Trillium pusillum Michx. -- accepted -- dwarf wakerobin
  Trillium pusillum var. pusillum Michx. -- accepted -- dwarf wakerobin
  Triodia caerulescens (Michx.) Desv. -- not accepted
  Triodia melicoides (Michx.) Spreng. -- not accepted
  Tripsacum cylindricum Michx. -- not accepted
  Trisetum melicoides (Michx.) Scribn. -- not accepted -- purple false oat
  Trisetum melicoides var. melicoides (Michx.) Scribn. -- not accepted
  Trisetum palustre (Michx.) Torr. -- not accepted
  Tulipastrum cordatum (Michx.) Small -- not accepted
  Ulmus alata Michx. -- accepted -- winged elm
  Ulmus fulva Michx. -- not accepted
  Uniola distichophylla (Michx.) Roem. & Schult. -- not accepted
  Uniola gracilis Michx. -- not accepted
  Uniola latifolia Michx. -- not accepted
  Uniola maritima Michx. -- not accepted
  Urachne asperifolia (Michx.) Trin. -- not accepted
  Urostachys lucidulus (Michx.) Herter ex Nessel -- not accepted
  Utricularia cornuta Michx. -- accepted -- horned bladderwort
  Uvularia puberula Michx. -- accepted -- mountain bellwort
  Vaccinium angustifolium var. myrtilloides (Michx.) House -- not accepted
  Vaccinium brachycerum Michx. -- not accepted
  Vaccinium caespitosum Michx. -- not accepted
  Vaccinium caespitosum var. caespitosum Michx. -- not accepted -- dwarf bilberry
  Vaccinium cespitosum Michx. -- accepted -- dwarf bilberry, dwarf blueberry
  Vaccinium cespitosum var. cespitosum Michx. -- not accepted
  Vaccinium erythrocarpum Michx. -- accepted -- southern mountain cranberry
  Vaccinium myrtilloides Michx. -- accepted -- sour-top blueberry, velvetleaf blueberry, velvetleaf huckleberry
  Vaccinium oxycoccos var. ovalifolium Michx. -- not accepted
  Valeriana pauciflora Michx. -- accepted -- largeflower valerian
  Vallisneria americana Michx. -- accepted -- American eelgrass, eel-grass, watercelery
  Vallisneria asiatica Michx. -- not accepted
  Vallisneria spiralis var. americana (Michx.) Torr. -- not accepted
  Vallisneria spiralis var. asiatica (Michx.) Torr. -- not accepted
  Veratrum parviflorum Michx. -- accepted -- Appalachian bunchflower
  Verbena angustifolia Michx. -- not accepted
  Verbena bracteosa Michx. -- not accepted
  Verbesina helianthoides Michx. -- accepted -- gravelweed, gravelweed crownbeard
  Vernonia angustifolia Michx. -- accepted -- tall ironweed
  Vernonia angustifolia ssp. angustifolia Michx. -- not accepted -- tall ironweed
  Vernonia fasciculata Michx. -- accepted -- prairie ironweed, western ironweed
  Vernonia fasciculata ssp. fasciculata Michx. -- not accepted -- prairie ironweed
  Vernonia noveboracensis (L.) Michx. -- accepted -- New York ironweed
  Veronia noveboracensis (L.) Michx. -- not accepted
  Viburnum dentatum var. semitomentosum Michx. -- not accepted
  Viburnum edule (Michx.) Raf. -- accepted -- squashberry
  Viburnum lantanoides Michx. -- accepted -- hobblebush
  Viburnum molle Michx. -- accepted -- softleaf arrowwood
  Viburnum semitomentosa (Michx.) Rehder -- not accepted
  Viburnum semitomentosum (Michx.) Rehder -- not accepted
  Vilfa dispar (Michx.) P. Beauv. -- not accepted
  Vilfa lateriflora (Michx.) P. Beauv. -- not accepted
  Vilfa racemosa (Michx.) P. Beauv. -- not accepted
  Vincetoxicum hirsutum (Michx.) Britton -- not accepted
  Viola hastata Michx. -- accepted -- halberdleaf yellow violet
  Viola pensylvanica Michx. -- not accepted
  Viola rotundifolia Michx. -- accepted -- roundleaf violet, roundleaf yellow violet, violette ŕ feuilles rondes
  Vitis aestivalis Michx. -- accepted -- summer grape
  Vitis aestivalis var. aestivalis Michx. -- accepted -- summer grape
  Vitis cordifolia Michx. -- not accepted
  Vitis riparia Michx. -- accepted -- river-bank grape, riverbank grape
  Vitis rotundifolia Michx. -- accepted -- muscadine, muscadine grape
  Vitis rotundifolia var. rotundifolia Michx. -- accepted -- muscadine
  Vitis rubra Michx. -- not accepted
  Vitis vulpina ssp. riparia (Michx.) R.T. Clausen -- not accepted
  Waldsteinia fragarioides (Michx.) Tratt. -- accepted -- Appalachian barren strawberry
  Waldsteinia fragarioides ssp. fragarioides (Michx.) Tratt. -- not accepted -- Appalachian barren strawberry
  Waldstenia fragarioides (Michx.) Tratt. -- not accepted
  Waldstenia fragarioides var. fragarioides (Michx.) Tratt. -- not accepted
  Washingtonia claytonii (Michx.) Britton -- not accepted
  Windsoria sesleroides (Michx.) Eaton -- not accepted
  Xeniatrum umbellulatum (Michx.) Small -- not accepted
  Xerophyllium Michx. -- not accepted
  Xerophyllum Michx. -- accepted -- beargrass
  Xolisma foliosiflora (Michx.) Small -- not accepted
  Xolisma fruticosa (Michx.) Nash -- not accepted
  Xolisma ligustrina var. foliosiflora (Michx.) C. Mohr -- not accepted
  Xyris brevifolia Michx. -- accepted -- shortleaf yelloweyed grass
  Zenobia speciosa (Michx.) D. Don -- not accepted
  Zerna canadensis (Michx.) Tzvelev -- not accepted
  Zigadenus Michx. -- accepted -- deathcamas
  Zigadenus glaberrimus Michx. -- accepted -- sandbog deathcamas
  Zizania clavulosa Michx. -- not accepted
  Zizania fluitans Michx. -- not accepted
  Zizania lenticularis Michx. ex P. Beauv. -- not accepted
  Zizania lenticularis (Michx.) Steud. -- not accepted
  Zizania miliacea Michx. -- not accepted
  Zizania natans Michx. ex P. Beauv. -- not accepted
  Zizaniopsis miliacea (Michx.) Döll & Asch. -- accepted -- giant cutgrass
  Zizia trifoliata (Michx.) Fernald -- accepted -- meadow alexanders
   

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