Integrated Taxonomic Information System - Taxon Author Search Results


Taxon author: D.D. Keck

ITIS records citing taxon author "D.D. Keck"
 
 Kingdom Plantae
  Achillea borealis ssp. arenicola (A. Heller) D.D. Keck -- not accepted
  Achillea borealis ssp. californica (Pollard) D.D. Keck -- not accepted
  Achillea borealis ssp. typica D.D. Keck -- not accepted
  Achillea lanulosa ssp. alpicola (Rydb.) D.D. Keck -- not accepted
  Achillea lanulosa ssp. typica D.D. Keck -- not accepted
  Amphipappus fremontii ssp. spinosus (A. Nelson) D.D. Keck -- not accepted -- chaffbush, Fremont's chaffbush
  Argyroxiphium X kai (Forbes) D.D. Keck -- accepted -- kai silversword
  Artemisia ludoviciana ssp. albula (Woot.) D.D. Keck -- accepted -- gray sagewort, white sagebrush, white sagewort
  Artemisia ludoviciana ssp. candicans (Rydb.) D.D. Keck -- accepted -- gray sagewort, white sagebrush
  Artemisia ludoviciana ssp. incompta (Nutt.) D.D. Keck -- accepted -- Columbia River wormwood, mountain sagewort, white sagebrush
  Artemisia ludoviciana ssp. mexicana (Willd. ex Spreng.) D.D. Keck -- accepted -- cudweed sagewort, Louisiana sagewort, Mexican sagewort, Mexican white sagebrush, white sagebrush
  Artemisia ludoviciana ssp. redolens (A. Gray) D.D. Keck -- accepted -- white sagebrush, white sagewort
  Artemisia ludoviciana ssp. sulcata (Rydb.) D.D. Keck -- accepted -- green sagewort, white sagebrush
  Artemisia ludoviciana ssp. typica D.D. Keck -- not accepted
  Aster oregonensis ssp. californicus (Durand) D.D. Keck -- not accepted
  Baeria macrantha var. bakeri (J.T. Howell) D.D. Keck -- not accepted
  Benitoa D.D. Keck -- accepted -- benitoa
  Benitoa occidentalis (H.M. Hall) D.D. Keck -- accepted -- benitoa
  Blepharipappus scaber ssp. laevis (A. Gray) D.D. Keck -- not accepted -- rough eyelashweed
  Blepharizonia plumosa ssp. viscida D.D. Keck -- not accepted -- big tarweed
  Calycadenia hispida ssp. reducta D.D. Keck -- not accepted
  Calycadenia multiglandulosa ssp. bicolor (Greene) D.D. Keck -- not accepted
  Calycadenia multiglandulosa ssp. cephalotes (DC.) D.D. Keck -- not accepted
  Calycadenia multiglandulosa ssp. robusta D.D. Keck -- not accepted
  Calycadenia truncata ssp. microcephala H.M. Hall ex D.D. Keck -- not accepted -- Oregon western rosinweed
  Calycadenia truncata ssp. scabrella (E. Drew) D.D. Keck -- not accepted -- Oregon western rosinweed
  Castilleja ambigua ssp. humboldtiensis (D.D. Keck) T.I. Chuang & Heckard -- accepted -- Humboldt Bay owl's clover
  Castilleja densiflora ssp. obispoensis (D.D. Keck) T.I. Chuang & Heckard -- accepted -- Obispo Indian paintbrush
  Centromadia parryi ssp. australis (D.D. Keck) B.G. Baldw. -- accepted -- pappose tarweed
  Centromadia pungens ssp. laevis (D.D. Keck) B.G. Baldw. -- accepted -- common tarweed
  Centromadia pungens ssp. septentrionalis (D.D. Keck) B.G. Baldw. -- not accepted
  Chaenactis glabriuscula var. gracilenta (Greene) D.D. Keck -- not accepted
  Chaetopappa alsinoides (Greene) D.D. Keck -- not accepted
  Chaetopappa aurea (Nutt.) D.D. Keck -- not accepted
  Chaetopappa bellidiflora (Greene) D.D. Keck -- not accepted
  Chaetopappa exilis (A. Gray) D.D. Keck -- not accepted
  Chaetopappa fragilis (Brandegee) D.D. Keck -- not accepted
  Chaetopappa lyonii (A. Gray) D.D. Keck -- not accepted
  Chrysopsis oregona var. compacta D.D. Keck -- not accepted
  Chrysothamnus axillaris D.D. Keck -- not accepted
  Chrysothamnus nauseosus ssp. nanus (Cronquist) D.D. Keck -- not accepted
  Chrysothamnus nauseosus ssp. viscosus D.D. Keck -- not accepted
  Chrysothamnus viscidiflorus ssp. axillaris (D.D. Keck) L.C. Anderson -- accepted -- Douglas' rabbitbrush, low rabbitbrush, yellow rabbitbrush
  Corethrogyne filaginifolia var. hamiltonensis D.D. Keck -- not accepted -- common sandaster
  Corethrogyne filaginifolia var. viscidula (Greene) D.D. Keck -- not accepted -- common sandaster
  Deinandra arida (D.D. Keck) B.G. Baldw. -- accepted -- Redrock tarweed
  Deinandra conjugens (D.D. Keck) B.G. Baldw. -- accepted -- Otay tarplant, Otay tarweed
  Deinandra halliana (D.D. Keck) B.G. Baldw. -- accepted -- Hall's tarweed
  Deinandra increscens (H.M. Hall ex D.D. Keck) B.G. Baldw. -- accepted -- grassland moonshine
  Deinandra increscens ssp. increscens (H.M. Hall ex D.D. Keck) B.G. Baldw. -- accepted -- grassland tarweed
  Deinandra mohavensis (D.D. Keck) B.G. Baldw. -- accepted -- Mojave tarweed
  Deinandra pallida (D.D. Keck) B.G. Baldw. -- accepted -- Kern tarweed
  Deinandra pentactis (D.D. Keck) B.G. Baldw. -- accepted -- Salinas River tarweed
  Dicoria canescens ssp. clarkiae (Kennedy) D.D. Keck -- not accepted -- desert twinbugs
  Dicoria canescens ssp. hispidula (Rydb.) D.D. Keck -- not accepted -- desert twinbugs
  Dieteria asteroides var. lagunensis (D.D. Keck) D.R. Morgan & R.L. Hartm. -- accepted
  Drymocallis cuneifolia var. ewanii (D.D. Keck) Ertter -- accepted -- Ewan's drymocallis
  Dubautia arborea (A. Gray) D.D. Keck -- accepted -- Mauna Kea dubautia
  Dubautia ciliolata (DC.) D.D. Keck -- accepted -- lava dubautia
  Dubautia ciliolata ssp. ciliolata (DC.) D.D. Keck -- accepted -- lava dubautia
  Dubautia ciliolata var. juniperoides (A. Gray) D.D. Keck -- not accepted
  Dubautia coriacea (Sherff) D.D. Keck -- not accepted
  Dubautia hillebrandii (H. Mann) D.D. Keck -- not accepted
  Dubautia latifolia (A. Gray) D.D. Keck -- accepted -- koholapehu, na`ena`e
  Dubautia linearis (Gaudich.) D.D. Keck -- accepted -- shrubland dubautia
  Dubautia linearis ssp. linearis (Gaudich.) D.D. Keck -- accepted -- shrubland dubautia
  Dubautia linearis var. opposita (Sherff) D.D. Keck -- not accepted
  Dubautia lonchophylla (Sherff) D.D. Keck -- not accepted
  Dubautia menziesii (A. Gray) D.D. Keck -- accepted -- mountain dubautia
  Dubautia menziesii var. angustifolia (Sherff) D.D. Keck -- not accepted
  Dubautia molokaiensis var. oppositifolia (Sherff) D.D. Keck -- not accepted
  Dubautia molokaiensis var. stipitata (Sherff) D.D. Keck -- not accepted
  Dubautia montana var. longifolia (Sherff) D.D. Keck -- not accepted
  Dubautia montana var. robustior (Sherff) D.D. Keck -- not accepted
  Dubautia platyphylla (A. Gray) D.D. Keck -- accepted -- cinderslope dubautia
  Dubautia platyphylla var. leptophylla (Sherff) D.D. Keck -- not accepted
  Dubautia reticulata (Sherff) D.D. Keck -- accepted -- netvein dubautia
  Dubautia rockii (Sherff) D.D. Keck -- not accepted
  Dubautia scabra (DC.) D.D. Keck -- accepted -- rough dubautia
  Dubautia scabra ssp. scabra (DC.) D.D. Keck -- accepted -- rough dubautia
  Dubautia scabra var. leiophylla (A. Gray) D.D. Keck -- not accepted
  Dubautia scabra var. munroi (Sherff) D.D. Keck -- not accepted
  Dubautia struthioloides (A. Gray) D.D. Keck -- not accepted
  Dubautia ternifolia (Sherff) D.D. Keck -- not accepted
  Dubautia thyrsiflora var. cernua (Sherff) D.D. Keck -- not accepted
  Dubautia X demissifolia (Sherff) D.D. Keck (pro sp.) -- accepted -- dubautia
  Dubautia X molokaiensis (Hillebr.) D.D. Keck (pro sp.) -- accepted -- Molokai dubautia
  Dubautia X montana (H. Mann) D.D. Keck (pro sp.) -- accepted -- dubautia
  Dubautia X thyrsiflora (Sherff) D.D. Keck (pro sp.) -- accepted -- dubautia
  Encelia virginensis ssp. actonii (Elmer) D.D. Keck -- not accepted
  Epilobium canum ssp. angustifolium (D.D. Keck) P.H. Raven -- accepted -- hummingbird trumpet
  Epilobium canum ssp. septentrionale (D.D. Keck) P.H. Raven -- not accepted
  Epilobium septentrionale (D.D. Keck) R.N. Bowman & Hoch -- accepted -- northern willowherb
  Ericameria viscidiflora ssp. axillaris (D.D. Keck) L.C. Anderson -- not accepted
  Ericameria X viscosa (D.D. Keck) G.L. Nesom & Baird -- accepted
  Erigeron bloomeri var. pubens D.D. Keck -- not accepted -- scabland fleabane
  Grindelia hirsutula ssp. rubricaulis (DC.) D.D. Keck -- not accepted
  Grindelia latifolia ssp. platyphylla (Greene) D.D. Keck -- not accepted
  Grindelia robusta var. bracteosa (J.T. Howell) D.D. Keck -- not accepted
  Grindelia stricta ssp. blakei (Steyerm.) D.D. Keck -- not accepted
  Grindelia stricta ssp. venulosa (Jeps.) D.D. Keck -- not accepted
  Haplopappus eximius ssp. peirsonii D.D. Keck -- not accepted
  Haplopappus lucidus (D.D. Keck) D.D. Keck -- not accepted
  Haplopappus ophitidis (J.T. Howell) D.D. Keck -- not accepted
  Haplopappus ophitidus (J. T. Howell) D.D. Keck -- not accepted
  Haplopappus peirsonii (D.D. Keck) J.T. Howell -- not accepted
  Haplopappus racemosus ssp. liatriformis (Greene) D.D. Keck -- not accepted
  Haplopappus racemosus ssp. lucidus D.D. Keck -- not accepted
  Haplopappus racemosus ssp. pinetorum D.D. Keck -- not accepted
  Haplopappus squarrosus ssp. grindelioides (DC.) D.D. Keck -- not accepted
  Haplopappus uniflorus ssp. linearis D.D. Keck -- not accepted
  Haplopappus venetus var. argutus (Greene) D.D. Keck -- not accepted
  Haplopappus whitneyi ssp. discoideus (J.T. Howell) D.D. Keck -- not accepted
  Harmonia hallii (D.D. Keck) B.G. Baldw. -- accepted -- Hall's madia
  Hemizonia arida D.D. Keck -- not accepted -- Redrock tarweed
  Hemizonia australis (D.D. Keck) D.D. Keck -- not accepted
  Hemizonia calyculata (Babc. & H.M. Hall) D.D. Keck -- not accepted
  Hemizonia congesta ssp. vernalis (D.D. Keck) Tanowitz -- not accepted -- hayfield tarweed
  Hemizonia conjugens D.D. Keck -- not accepted -- Otay tarplant, Otay tarweed
  Hemizonia corymbosa ssp. macrocephala (Nutt.) D.D. Keck -- not accepted -- coastal tarweed
  Hemizonia halliana D.D. Keck -- not accepted -- Hall's tarweed
  Hemizonia increscens (H.M. Hall ex D.D. Keck) Tanowitz -- not accepted -- grassland tarweed
  Hemizonia increscens ssp. increscens (H.M. Hall ex D.D. Keck) Tanowitz -- not accepted -- grassland tarweed
  Hemizonia laevis (D.D. Keck) D.D. Keck -- not accepted
  Hemizonia lutescens (Greene) D.D. Keck -- not accepted
  Hemizonia luzulifolia ssp. rudis (Benth.) D.D. Keck -- not accepted
  Hemizonia mohavensis D.D. Keck -- not accepted -- Mojave tarweed
  Hemizonia multicaulis ssp. vernalis D.D. Keck -- not accepted
  Hemizonia pallida D.D. Keck -- not accepted -- Kern tarweed
  Hemizonia paniculata ssp. increscens H.M. Hall ex D.D. Keck -- not accepted
  Hemizonia parryi ssp. australis D.D. Keck -- not accepted -- pappose tarweed
  Hemizonia parryi ssp. congdonii (B.L. Rob. & Greenm.) D.D. Keck -- not accepted -- Congdon's tarweed
  Hemizonia parryi ssp. rudis (Greene) D.D. Keck -- not accepted -- pappose tarweed
  Hemizonia pentactis (D.D. Keck) D.D. Keck -- not accepted -- Salinas River tarweed
  Hemizonia pugens var. laevis D.D. Keck -- not accepted
  Hemizonia pugens var. maritima (Greene) D.D. Keck -- not accepted
  Hemizonia pugens var. septentrionalis D.D. Keck -- not accepted
  Hemizonia pungens ssp. laevis D.D. Keck -- not accepted -- common tarweed, spikeweed
  Hemizonia pungens ssp. maritima (Greene) D.D. Keck -- not accepted -- common tarweed, spikeweed
  Hemizonia pungens ssp. septentrionalis D.D. Keck -- not accepted -- common tarweed, spikeweed
  Hemizonia pungens var. septentrionalis (D.D. Keck) Cronquist -- not accepted
  Hemizonia tracyi (Babc. & H.M. Hall) D.D. Keck -- not accepted
  Heterotheca oregona var. compacta (D.D. Keck) Semple -- accepted -- Oregon false goldenaster
  Holocarpha heermannii (Greene) D.D. Keck -- accepted -- Heermann's tarweed
  Holocarpha obconica (J.C. Clausen & D.D. Keck) D.D. Keck -- accepted -- San Joaquin tarweed
  Holocarpha obconica ssp. autumnalis D.D. Keck -- not accepted -- San Joaquin tarweed
  Holocarpha obconica ssp. obconica (J.C. Clausen & D.D. Keck) D.D. Keck -- not accepted -- San Joaquin tarweed
  Holocarpha obconica var. autummalis D.D. Keck -- not accepted
  Holocarpha virgata (A. Gray) D.D. Keck -- accepted -- yellowflower tarweed
  Holocarpha virgata ssp. elongata D.D. Keck -- accepted -- wand tarbush
  Holocarpha virgata ssp. virgata (A. Gray) D.D. Keck -- accepted -- yellowflower tarweed
  Horkelia bolanderi ssp. clevelandii (Greene) D.D. Keck -- not accepted
  Horkelia bolanderi ssp. parryi (S. Watson) D.D. Keck -- not accepted
  Horkelia congesta ssp. nemorosa D.D. Keck -- not accepted -- Sierra horkelia
  Horkelia congesta var. nemorosa (D.D. Keck) M. Peck -- accepted -- Sierra horkelia
  Horkelia cuneata ssp. puberula (Rydb.) D.D. Keck -- not accepted -- wedgeleaf horkelia
  Horkelia cuneata ssp. sericea (A. Gray) D.D. Keck -- not accepted -- wedge-leaved horkelia, wedgeleaf horkelia
  Horkelia daucifolia ssp. latior D.D. Keck -- not accepted -- carrotleaf horkelia
  Horkelia fusca ssp. capitata (Lindl.) D.D. Keck -- not accepted -- bighead horkelia
  Horkelia fusca ssp. filicoides (Crum) D.D. Keck -- not accepted -- pinewoods horkelia
  Horkelia fusca ssp. parviflora (Nutt. ex Hook. & Arn.) D.D. Keck -- not accepted -- smallflower horkelia
  Horkelia fusca ssp. pseudocapitata (Rydb. ex Howell) D.D. Keck -- not accepted -- littlehead horkelia
  Horkelia fusca ssp. tenella (S. Watson) D.D. Keck -- not accepted -- pinewoods horkelia
  Horkelia marinensis (Elmer) Crum ex D.D. Keck -- accepted -- Point Reyes horkelia
  Horkelia tridentata ssp. flavescens (Rydb.) D.D. Keck -- not accepted -- threetooth honeydew, threetooth horkelia
  Hulsea californica ssp. inyoensis D.D. Keck -- not accepted
  Hulsea inyoensis (D.D. Keck) Munz -- not accepted
  Hulsea vestita ssp. inyoensis (D.D. Keck) Wilken -- accepted -- Inyo hulsea, pumice alpinegold
  Ivesia baileyi ssp. setosa (S. Watson) D.D. Keck -- not accepted
  Ivesia baileyi ssp. typica D.D. Keck -- not accepted
  Ivesia cryptocaulis (Clokey) D.D. Keck -- accepted -- Charleston Peak mousetail, hidden ivesia
  Ivesia lycopodioides ssp. megalopetala (Rydb.) D.D. Keck -- not accepted -- clubmoss mousetail
  Ivesia lycopodioides ssp. scandularis (Rydb.) D.D. Keck -- not accepted -- clubmoss mousetail
  Ivesia lycopodioides ssp. typica D.D. Keck -- not accepted
  Ivesia multifoliata (Torr.) D.D. Keck -- not accepted
  Ivesia multifoliolata (Torr.) D.D. Keck -- accepted -- manyleaf mousetail
  Ivesia purpurascens (S. Watson) D.D. Keck -- not accepted
  Ivesia purpurascens ssp. congdonis (Rydb.) D.D. Keck -- not accepted
  Ivesia purpurascens ssp. purpurascens (S. Watson) D.D. Keck -- not accepted -- summit mousetail
  Ivesia sabulosa (M.E. Jones) D.D. Keck -- accepted -- intermountain ivesia, Intermountain mousetail
  Keckiella breviflora ssp. glabrisepala (D.D. Keck) Straw -- accepted -- bush beardtongue
  Keckiella breviflora var. glabrisepala (D.D. Keck) N.H. Holmgren -- not accepted
  Lagophylla glandulosa ssp. serrata (Greene) D.D. Keck -- not accepted
  Lagophylla minor (D.D. Keck) D.D. Keck -- accepted -- lesser hareleaf
  Lagophylla ramosissima ssp. congesta (Greene) D.D. Keck -- not accepted -- branched lagophylla
  Laphamia megalocephala ssp. intricata (Brandegee) D.D. Keck -- not accepted
  Layia chrysanthemoides ssp. maritima D.D. Keck -- not accepted
  Layia discoidea D.D. Keck -- accepted -- rayless tidytips
  Layia glandulosa ssp. lutea D.D. Keck -- not accepted
  Layia leucopappa D.D. Keck -- accepted -- Comanche Point tidytips
  Layia munzii D.D. Keck -- accepted -- Munz's tidytips
  Layia paniculata D.D. Keck -- not accepted
  Layia pentachaeta ssp. albida D.D. Keck -- accepted -- Sierra tidytips
  Layia platyglossa ssp. campestris D.D. Keck -- not accepted
  Layia septentrionalis D.D. Keck -- accepted -- Colusa tidytips
  Lessingia micradenia var. glabrata (D.D. Keck) Ferris -- accepted -- smooth lessingia
  Lessingia ramulosa var. glabrata D.D. Keck -- not accepted
  Lonicera johnstonii (D.D. Keck) McMinn -- not accepted
  Lonicera subspicata var. johnstonii D.D. Keck -- accepted -- Johnston's honeysuckle
  Lorandersonia peirsonii (D.D. Keck) Urbatsch, R.P. Roberts & Neubig -- accepted -- Peirson's serpentweed
  Machaeranthera asteroides var. lagunensis (D.D. Keck) B.L. Turner -- not accepted
  Machaeranthera cognata (H.M. Hall) Cronquist & D.D. Keck -- not accepted
  Machaeranthera glabriuscula (Nutt.) Cronquist & D.D. Keck -- not accepted
  Machaeranthera glabriuscula var. villosa (Nutt.) Cronquist & D.D. Keck -- not accepted
  Machaeranthera grindelioides var. depressa (Maguire) Cronquist & D.D. Keck -- not accepted -- rayless aster, rayless tansyaster
  Machaeranthera kingii (D.C. Eaton) Cronquist & D.D. Keck -- not accepted
  Machaeranthera lagunensis D.D. Keck -- not accepted
  Machaeranthera orcuttii (Vasey & Rose) Cronquist & D.D. Keck -- not accepted
  Machaeranthera shastensis var. eradiata (A. Gray) Cronquist & D.D. Keck -- not accepted
  Machaeranthera shastensis var. glossophylla (Piper) Cronquist & D.D. Keck -- not accepted
  Machaeranthera shastensis var. latifolia (Cronquist) Cronquist & D.D. Keck -- not accepted
  Machaeranthera shastensis var. montana (Greene) Cronquist & D.D. Keck -- not accepted
  Machaeranthera tortifolia (Torr. & A. Gray) Cronquist & D.D. Keck -- not accepted
  Machaeranthera venusta (M.E. Jones) Cronquist & D.D. Keck -- not accepted
  Machaeranthera wrightii (A. Gray) Cronquist & D.D. Keck -- not accepted
  Madia citrigracilis D.D. Keck -- accepted -- Shasta tarweed
  Madia elegans ssp. densifolia (Greene) D.D. Keck -- not accepted -- showy tarweed
  Madia elegans ssp. vernalis D.D. Keck -- not accepted -- spring madia
  Madia elegans ssp. wheeleri (A. Gray) D.D. Keck -- not accepted -- Wheeler's tarweed
  Madia gracilis (Sm.) D.D. Keck -- accepted -- grassy tarweed, slender tarweed
  Madia gracilis ssp. collina D.D. Keck -- not accepted
  Madia gracilis ssp. gracilis (Sm.) D.D. Keck -- not accepted -- grassy tarweed
  Madia gracilis ssp. pilosa D.D. Keck -- not accepted
  Madia hallii D.D. Keck -- not accepted -- Hall's madia
  Madia minima (A. Gray) D.D. Keck -- not accepted -- least tarweed, oppositeleaved tarweed
  Madia nutans (Greene) D.D. Keck -- not accepted -- nodding madia
  Madia subspicata D.D. Keck -- accepted -- slender tarweed
  Orthocarpus bracteosus var. albus D.D. Keck -- not accepted
  Orthocarpus castillejoides var. humboldtiensis D.D. Keck -- not accepted
  Orthocarpus copelandii var. cryptanthus (Piper) D.D. Keck -- not accepted
  Orthocarpus densiflorus var. gracilis (Benth.) D.D. Keck -- not accepted
  Orthocarpus densiflorus var. obispoensis D.D. Keck -- not accepted
  Orthocarpus faucibarbatus ssp. albidus D.D. Keck -- not accepted
  Orthocarpus faucibarbatus var. albidus (D.D. Keck) J.T. Howell -- not accepted
  Orthocarpus purpurascens var. pallidus D.D. Keck -- not accepted
  Orthocarpus purpurascens var. venustus (A. Heller) D.D. Keck -- not accepted
  Orthocarpus pusillus var. densiuscuus (Gand.) D.D. Keck -- not accepted
  Penstemon ambiguus ssp. laevissimus D.D. Keck -- not accepted
  Penstemon ambiguus var. laevissimus (D.D. Keck) N.H. Holmgren -- accepted -- gilia penstemon, pink plains beardtongue, pink plains penstemon
  Penstemon angustifolius ssp. caudatus (A. Heller) D.D. Keck -- not accepted
  Penstemon angustifolius ssp. venosus D.D. Keck -- not accepted
  Penstemon angustifolius var. venosus (D.D. Keck) N.H. Holmgren -- accepted -- broadbeard beardtongue, broadbeard penstemon
  Penstemon antirrhinoides ssp. microphyllus (A. Gray) D.D. Keck -- not accepted
  Penstemon assurgens D.D. Keck -- not accepted
  Penstemon attenuatus ssp. militaris (Greene) D.D. Keck -- not accepted
  Penstemon attenuatus ssp. palustris (Pennell) D.D. Keck -- not accepted
  Penstemon attenuatus ssp. pseudoprocerus (Rydb.) D.D. Keck -- not accepted
  Penstemon azureus ssp. angustissimus (A. Gray) D.D. Keck -- not accepted -- azure penstemon
  Penstemon barbatus ssp. torreyi (Benth.) D.D. Keck -- not accepted -- Torrey's penstemon
  Penstemon barbatus ssp. trichander (A. Gray) D.D. Keck -- not accepted -- beardlip penstemon
  Penstemon barbatus var. trichanderi (A. Gray) D.D. Keck -- not accepted
  Penstemon bicolor (Brandegee) Clokey & D.D. Keck -- accepted -- pinto beardtongue, pinto penstemon
  Penstemon bicolor ssp. bicolor (Brandegee) Clokey & D.D. Keck -- not accepted -- pinto beardtongue, twocolor penstemon
  Penstemon bicolor ssp. roseus Clokey & D.D. Keck -- not accepted -- pinto beardtongue, pinto penstemon, rosey pinto penstemon
  Penstemon bracteatus D.D. Keck -- accepted -- Red Canyon beardtongue
  Penstemon breviculus (D.D. Keck) G.T. Nisbet & R.C. Jacks. -- accepted -- shortstem beardtongue, shortstem penstemon
  Penstemon breviflorus ssp. glabrisepalus D.D. Keck -- not accepted
  Penstemon bryantiae D.D. Keck -- not accepted
  Penstemon caespitosus ssp. desertipicti (A. Nelson) D.D. Keck -- not accepted
  Penstemon californicus (Munz & I.M. Johnst.) D.D. Keck -- accepted -- California penstemon
  Penstemon cinereus ssp. foliatus D.D. Keck -- not accepted
  Penstemon cinereus var. foliatus D.D. Keck -- not accepted
  Penstemon cinicola D.D. Keck -- accepted -- ash penstemon
  Penstemon cleavelandii var. connatus (Munz & I.M. Johnst.) D.D. Keck -- not accepted
  Penstemon cleavelandii var. mohavensis D.D. Keck -- not accepted
  Penstemon clevelandii ssp. connatus (Munz & I.M. Johnst.) D.D. Keck -- not accepted -- San Jacinto beardtongue
  Penstemon clevelandii ssp. mohavensis D.D. Keck -- not accepted -- Cleveland's beardtongue
  Penstemon clevelandii var. mohavensis (D.D. Keck) McMinn -- accepted -- Cleveland's beardtongue
  Penstemon compactus (D.D. Keck) Crosswh. -- accepted -- cache beardtongue, compact penstemon
  Penstemon concinnus D.D. Keck -- accepted -- Tunnel Springs beardtongue, Tunnel Springs penstemon
  Penstemon confusus ssp. patens (M.E. Jones) D.D. Keck -- not accepted
  Penstemon crandallii ssp. atratus D.D. Keck -- accepted -- Crandall's beardtongue
  Penstemon crandallii ssp. glabrescens (Pennell) D.D. Keck -- accepted -- Crandall's beardtongue
  Penstemon crandallii ssp. glabrescens var. glabrescens (Pennell) D.D. Keck -- not accepted -- Crandall's beardtongue
  Penstemon crandallii ssp. glabrescens var. taosensis (D.D. Keck) G.T. Nisbet & R.C. Jacks. -- not accepted -- Crandall's beardtongue
  Penstemon crandallii ssp. procumbens (Greene) D.D. Keck -- accepted -- Crandall's beardtongue
  Penstemon crandallii ssp. taosensis (D.D. Keck) Kartesz & Gandhi -- not accepted -- Taos penstemon
  Penstemon crandallii var. atractus (D.D. Keck) N.H. Holmgren -- not accepted
  Penstemon crandallii var. atratus (D.D. Keck) N.H. Holmgren -- not accepted
  Penstemon crandallii var. taosensis (D.D. Keck) G.T. Nisbet & R.C. Jacks. -- not accepted
  Penstemon cyananthus ssp. compactus D.D. Keck -- not accepted
  Penstemon cyananthus var. compactus (D.D. Keck) Neese -- not accepted
  Penstemon davidsonii ssp. menziesii D.D. Keck -- not accepted
  Penstemon davidsonii var. menziesii (D.D. Keck) Cronquist -- accepted -- Menzies' penstemon
  Penstemon deustus ssp. heterander (Torr. & A. Gray) Pennell & D.D. Keck -- not accepted
  Penstemon deustus ssp. sudans (M.E. Jones) Pennell & D.D. Keck -- not accepted
  Penstemon deustus ssp. variabilis (Suksd.) Pennell & D.D. Keck -- not accepted
  Penstemon discolor D.D. Keck -- accepted -- Catalina beardtongue
  Penstemon eatonii ssp. exsertus (A. Nelson) D.D. Keck -- accepted -- Eaton's firecracker, Eaton's penstemon, firecracker penstemon
  Penstemon eatonii ssp. undosus (M.E. Jones) D.D. Keck -- accepted -- Eaton's penstemon, firecracker penstemon
  Penstemon eriantherus var. redactus Pennell & D.D. Keck -- accepted -- longsac penstemon
  Penstemon filiformis (D.D. Keck) D.D. Keck -- accepted -- thread-leaved penstemon, threadleaf beardtongue
  Penstemon floridus ssp. austinii (Eastw.) D.D. Keck -- not accepted
  Penstemon fruticiformis ssp. amargosae D.D. Keck -- not accepted -- Amargosa penstemon, Death Valley beardtongue
  Penstemon fruticiformis var. amargosae (D.D. Keck) N.H. Holmgren -- accepted -- Death Valley beardtongue
  Penstemon fruticosus ssp. scouleri (Lindl.) Pennell & D.D. Keck -- not accepted
  Penstemon fruticosus ssp. serratus D.D. Keck -- not accepted
  Penstemon fruticosus var. serratus (D.D. Keck) Cronquist -- accepted -- sawleaf bush penstemon
  Penstemon gairdneri ssp. hians (Piper) D.D. Keck -- not accepted
  Penstemon gairdneri ssp. oreganus (A. Gray) D.D. Keck -- not accepted
  Penstemon glandulosus ssp. chelanensis D.D. Keck -- not accepted
  Penstemon glandulosus var. chelanensis (D.D. Keck) Cronquist -- accepted -- stickystem penstemon
  Penstemon globosus (Piper) Pennell & D.D. Keck -- accepted -- globe penstemon
  Penstemon grahamii D.D. Keck -- accepted -- Graham's beardtongue, Uinta Basin beardtongue
  Penstemon heterodoxus ssp. cephalophorus (Greene) D.D. Keck -- not accepted
  Penstemon heterodoxus var. shastensis (D.D. Keck) N.H. Holmgren -- accepted -- Shasta beardtongue
  Penstemon heterophyllus ssp. australis (Munz & I.M. Johnst.) D.D. Keck -- not accepted -- foothill beardtongue
  Penstemon heterophyllus ssp. purdyi D.D. Keck -- not accepted -- Purdy's penstemon
  Penstemon heterophyllus var. purdyi (D.D. Keck) McMinn -- accepted -- Purdy's penstemon
  Penstemon humilis ssp. brevifolius (A. Gray) D.D. Keck -- not accepted -- low beardtongue
  Penstemon humilis ssp. obtusifolius (Pennell) D.D. Keck -- not accepted -- low beardtongue
  Penstemon jamesii ssp. breviculus D.D. Keck -- not accepted
  Penstemon jamesii ssp. ophianthus (Pennell) D.D. Keck -- not accepted
  Penstemon jamesii ssp. typicus D.D. Keck -- not accepted
  Penstemon laetus ssp. leptosepalus (Greene ex A. Gray) D.D. Keck -- not accepted -- mountain blue penstemon
  Penstemon laetus ssp. roezlii (Regel) D.D. Keck -- not accepted -- Roezl's penstemon
  Penstemon laetus ssp. sagittatus D.D. Keck -- not accepted -- mountain blue penstemon
  Penstemon laetus var. sagittatus (D.D. Keck) McMinn -- accepted
  Penstemon laricifolius ssp. exilifolius (A. Nelson) D.D. Keck -- not accepted -- larchleaf beardtongue
  Penstemon lemhiensis (D.D. Keck) D.D. Keck & Cronquist -- accepted -- Lemhi beardtongue, Lemhi penstemon
  Penstemon lentus ssp. albiflorus D.D. Keck -- not accepted
  Penstemon lentus var. albiflorus (D.D. Keck) Reveal -- accepted -- handsome beardtongue
  Penstemon linarioides ssp. coloradoensis (A. Nelson) D.D. Keck -- accepted -- Colorado penstemon, toadflax penstemon
  Penstemon linarioides ssp. compactifolius D.D. Keck -- not accepted -- compact-leaf penstemon, toadflax beardtongue, toadflax penstemon
  Penstemon linarioides ssp. maguirei D.D. Keck -- accepted -- Maguire's penstemon
  Penstemon linarioides ssp. sileri (A. Gray) D.D. Keck -- accepted -- Siler's penstemon
  Penstemon linarioides ssp. taosensis D.D. Keck -- not accepted
  Penstemon linarioides ssp. typicus D.D. Keck -- not accepted
  Penstemon linarioides var. viridis D.D. Keck -- not accepted
  Penstemon marcusii (D.D. Keck) N.H. Holmgren -- accepted -- Jones' beardtongue, Marcus' beardtongue
  Penstemon menziesii ssp. thompsonii Pennell & D.D. Keck -- not accepted
  Penstemon moffatii ssp. marcusii D.D. Keck -- not accepted
  Penstemon moffatii ssp. paysonii (Pennell) D.D. Keck -- not accepted -- Moffatt's beardtongue
  Penstemon montanus ssp. idahoensis D.D. Keck -- not accepted
  Penstemon montanus var. idahoensis (D.D. Keck) Cronquist -- accepted -- Central Idaho penstemon
  Penstemon nanus D.D. Keck -- accepted -- dwarf beardtongue, low beardtongue
  Penstemon neotericus D.D. Keck -- accepted -- Plumas County beardtongue
  Penstemon newberryi ssp. berryi (Eastw.) D.D. Keck -- not accepted -- Berry's penstemon
  Penstemon newberryi ssp. sonomensis (Greene) D.D. Keck -- not accepted -- Sonoma penstemon
  Penstemon pachyphyllus ssp. congestus (M.E. Jones) D.D. Keck -- not accepted
  Penstemon palmeri ssp. eglandulosus D.D. Keck -- not accepted
  Penstemon palmeri ssp. typicus D.D. Keck -- not accepted
  Penstemon palmeri var. eglandulosus (D.D. Keck) N.H. Holmgren -- accepted -- scented beardtongue, scented penstemon
  Penstemon paysoniorum D.D. Keck -- accepted -- Payson beardtongue, Payson's beardtongue
  Penstemon pennellianus D.D. Keck -- accepted -- Blue Mountain beardtongue
  Penstemon personatus D.D. Keck -- accepted -- closed-lip beardtongue, closethroat beardtongue
  Penstemon procerus ssp. aberrans (M.E. Jones) D.D. Keck -- not accepted
  Penstemon procerus ssp. brachyanthus (Pennell) D.D. Keck -- not accepted
  Penstemon procerus ssp. formosus (A. Nelson) D.D. Keck -- not accepted
  Penstemon procerus ssp. modestus (Greene) D.D. Keck -- not accepted
  Penstemon procerus ssp. tolmiei (Hook.) D.D. Keck -- not accepted
  Penstemon pseudospectabilis ssp. connatifolius (A. Nelson) D.D. Keck -- accepted -- desert beardtongue, desert penstemon
  Penstemon pseudospectabilis ssp. typicus D.D. Keck -- not accepted
  Penstemon rattanii ssp. kleei (Greene) D.D. Keck -- not accepted -- Santa Cruz Mountains beardtongue
  Penstemon richardsonii ssp. curtiflorus D.D. Keck -- not accepted
  Penstemon richardsonii ssp. dentatus D.D. Keck -- not accepted
  Penstemon richardsonii var. curtiflorus (D.D. Keck) Cronquist -- accepted -- cutleaf beardtongue
  Penstemon richardsonii var. dentatus (D.D. Keck) Cronquist -- accepted -- cutleaf beardtongue
  Penstemon rothrockii ssp. jacintensis (Abrams) D.D. Keck -- not accepted
  Penstemon rubicundus D.D. Keck -- accepted -- Wassuck penstemon, Wassuk Range beardtongue
  Penstemon rydbergii ssp. aggregatus (Pennell) D.D. Keck -- not accepted
  Penstemon scapoides D.D. Keck -- accepted -- pinyon beardtongue
  Penstemon seorsus (A. Nelson) D.D. Keck -- accepted -- shortlobe penstemon
  Penstemon shastensis D.D. Keck -- not accepted
  Penstemon speciosus ssp. kennedyi (A. Nelson) D.D. Keck -- not accepted
  Penstemon speciosus ssp. lemhiensis D.D. Keck -- not accepted
  Penstemon spectabilis ssp. subviscosus D.D. Keck -- not accepted -- showy penstemon
  Penstemon spectabilis var. subviscosus (D.D. Keck) McMinn -- accepted -- showy penstemon
  Penstemon strictus ssp. strictiformis (Rydb.) D.D. Keck -- not accepted
  Penstemon ternatus ssp. septentrionalis (Munz & I.M. Johnst.) D.D. Keck -- not accepted
  Penstemon thompsoniae ssp. jaegeri D.D. Keck -- not accepted -- Jaeger's beardtongue, Jaeger's penstemon
  Penstemon tolmiei ssp. brachyanthus (Pennell) D.D. Keck -- not accepted
  Penstemon tolmiei ssp. formosus (A. Nelson) D.D. Keck -- not accepted
  Penstemon tracyi D.D. Keck -- accepted -- Tracy beardtongue, Trinity penstemon
  Penstemon triphyllus ssp. diphyllus (Rydb.) D.D. Keck -- not accepted
  Penstemon venosus (D.D. Keck) Reveal -- not accepted
  Penstemon virgatus ssp. arizonicus (A. Gray) D.D. Keck -- not accepted
  Penstemon washingtonensis D.D. Keck -- accepted -- Washington beardtongue
  Penstemon watsonii ssp. laxus (A. Nelson) D.D. Keck -- not accepted
  Penstemon whitedii ssp. dayanus (Howell) D.D. Keck -- not accepted
  Penstemon whitedii ssp. tristis Pennell & D.D. Keck -- not accepted
  Penstemon X bryantiae D.D. Keck (pro. hybr.) -- accepted -- Bryant's beardtongue
  Poa bolanderi ssp. howellii D.D. Keck -- not accepted
  Poa cusickii ssp. pubens D.D. Keck -- not accepted
  Poa douglasii ssp. macrantha (Vasey) D.D. Keck -- not accepted
  Poa juncifolia ssp. porteri D.D. Keck -- not accepted
  Poa unilateralis ssp. pachypholis (Piper) D.D. Keck ex Soreng -- accepted
  Potentilla arguta ssp. convallaria (Rydb.) D.D. Keck -- not accepted -- cream cinquefoil
  Potentilla congesta var. nemorosa (D.D. Keck) J.T. Howell -- not accepted
  Potentilla drummondii ssp. bruceae (Rydb.) D.D. Keck -- not accepted -- Drummond's cinquefoil
  Potentilla glandulosa ssp. arizonica (Rydb.) D.D. Keck -- not accepted -- Arizona cinquefoil
  Potentilla glandulosa ssp. ashlandica (Greene) D.D. Keck -- not accepted -- Ashland cinquefoil
  Potentilla glandulosa ssp. ewanii D.D. Keck -- not accepted -- Ewan's cinquefoil
  Potentilla glandulosa ssp. glabrata (Rydb.) D.D. Keck -- not accepted -- sticky cinquefoil
  Potentilla glandulosa ssp. globosa D.D. Keck -- not accepted -- sticky cinquefoil
  Potentilla glandulosa ssp. hansenii (Greene) D.D. Keck -- not accepted -- Hansen's cinquefoil
  Potentilla glandulosa ssp. micropetala (Rydb.) D.D. Keck -- not accepted -- smallpetal cinquefoil
  Potentilla glandulosa ssp. nevadensis (S. Watson) D.D. Keck -- not accepted -- Nevada cinquefoil
  Potentilla glandulosa ssp. pseudorupestris (Rydb.) D.D. Keck -- not accepted -- sticky cinquefoil
  Potentilla glandulosa ssp. reflexa (Greene) D.D. Keck -- not accepted -- sticky cinquefoil
  Potentilla glandulosa ssp. typica D.D. Keck -- not accepted
  Potentilla gracilis ssp. nuttallii (Lehm.) D.D. Keck -- not accepted
  Pyrrocoma linearis (D.D. Keck) Kartesz & Gandhi -- accepted -- thinleaf goldenhead
  Pyrrocoma lucida (D.D. Keck) Kartesz & Gandhi -- accepted -- sticky goldenweed
  Pyrrocoma racemosa var. pinetorum (D.D. Keck) Kartesz & Gandhi -- accepted -- clustered goldenweed
  Pyrrocoma uniflora var. linearis (D.D. Keck) Kartesz & Gandhi -- not accepted
  Railliardia ciliolata var. trinervia (Hillebr.) D.D. Keck -- not accepted
  Solidago canadensis ssp. elongata (Nutt.) D.D. Keck -- not accepted
  Solidago canadensis ssp. salebrosa (Piper) D.D. Keck -- not accepted
  Solidago spathulata ssp. glutinosa (Nutt.) D.D. Keck -- not accepted
  Symphoricarpos albus var. mollis (Nutt.) D.D. Keck -- not accepted
  Tonestus peirsonii (D.D. Keck) G.L. Nesom & D. Morgan -- not accepted -- Peirson's serpentweed
  Zauschneria californica ssp. angustifolia D.D. Keck -- not accepted
  Zauschneria californica ssp. latifolia (Hook.) D.D. Keck -- not accepted
  Zauschneria septentrionalis D.D. Keck -- not accepted
   

A gray bar