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Taxon author: Roem. & Schult.

ITIS records citing taxon author "Roem. & Schult."
 
 Kingdom Plantae
  Achnatherum hymenoides (Roem. & Schult.) Barkworth -- accepted -- Indian ricegrass
  Acrachne racemosa (B. Heyne ex Roem. & Schult.) Ohwi -- accepted -- goosegrass
  Actinochloa Willd. ex Roem. & Schult. -- not accepted
  Actinochloa barbata (Lag.) Roem. & Schult. -- not accepted
  Actinochloa bromoides (Lag.) Roem. & Schult. -- not accepted
  Actinochloa gracilis (Kunth) Willd. ex Roem. & Schult. -- not accepted
  Actinochloa hirsuta (Lag.) Roem. & Schult. -- not accepted
  Actinochloa humilis (P. Beauv. ex Kunth) Willd. ex Roem. & Schult. -- not accepted
  Actinochloa ovata (Lag.) Roem. & Schult. -- not accepted
  Actinochloa procumbens (P. Durand) Roem. & Schult. -- not accepted
  Actinochloa prostrata (hort. ex Lag.) Roem. & Schult. -- not accepted
  Actinochloa scorpioides (Lag.) Roem. & Schult. -- not accepted
  Actinochloa simplex (Lag.) Roem. & Schult. -- not accepted
  Actinochloa tenuis (P. Beauv. ex Kunth) Willd. ex Roem. & Schult. -- not accepted
  Adenium Roem. & Schult. -- accepted -- desert rose
  Adenium obesum (Forssk.) Roem. & Schult. -- accepted -- desert-rose
  Aegopogon quinquesetus (Lag.) Roem. & Schult. -- not accepted
  Aegopogon trisetus (Lag.) Roem. & Schult. -- not accepted
  Aegopogon unisetus (Lag.) Roem. & Schult. -- not accepted
  Agropyron attenuatum (Kunth) Roem. & Schult. -- not accepted
  Agropyron cristatum var. pectiniforme (Roem. & Schult.) H.L. Yang -- not accepted
  Agropyron glaucum Roem. & Schult. -- not accepted
  Agropyron obtusiflorum (DC.) Roem. & Schult. -- not accepted
  Agropyron orientale (L.) Roem. & Schult. -- not accepted
  Agropyron pectiniforme Roem. & Schult. -- not accepted
  Agropyron peruvianum (Lam.) Roem. & Schult. -- not accepted
  Agropyron prostratum (Pall.) Roem. & Schult. -- not accepted
  Agropyron pungens (Pers.) Roem. & Schult. -- not accepted
  Agropyron pungens var. pungens (Pers.) Roem. & Schult. -- not accepted
  Agropyron repens var. glaucum (Roem. & Schult.) Scribn. -- not accepted
  Agropyron repens var. subulatum Roem. & Schult. -- not accepted
  Agropyron repens var. vaillantianum (Wulfen & Schreb.) Roem. & Schult. -- not accepted
  Agrostis ambigua Roem. & Schult. -- not accepted
  Agrostis atrovirens (Kunth) Roem. & Schult. -- not accepted
  Agrostis elegans (Kunth) Roem. & Schult. -- not accepted
  Agrostis fasciculata (Kunth) Roem. & Schult. -- not accepted
  Agrostis festucoides Muhl. ex Roem. & Schult. -- not accepted
  Agrostis forsteri Roem. & Schult. -- not accepted
  Agrostis humifusa (Kunth) Roem. & Schult. -- not accepted
  Agrostis lithuanica Besser ex Roem. & Schult. -- not accepted
  Agrostis oligantha Roem. & Schult. -- not accepted
  Agrostis ramulosa (Kunth) Roem. & Schult. -- not accepted
  Agrostis stricta (Roem. & Schult.) Büse -- not accepted
  Agrostis trichodes (Kunth) Roem. & Schult. -- accepted
  Aira arundinacea Lilj. ex Roem. & Schult. -- not accepted
  Aira versicolor Roem. & Schult. -- not accepted
  Airopsis brevifolia (Pursh) Roem. & Schult. -- not accepted
  Aloe brevifolia var. postgenita (Roem. & Schult.) Baker -- accepted
  Alopecurus sibiricus hort. ex Roem. & Schult. -- not accepted
  Alpinia antillarua auct. non Roem. & Schult. -- not accepted
  Alpinia antillarum auct. non Roem. & Schult. -- not accepted
  Alpinia exaltata (L. f.) Roem. & Schult. -- not accepted
  Alyxia stellata (J.R. Forst. & G. Forst.) Roem. & Schult. -- accepted -- maile
  Anatherum domingense Roem. & Schult. -- not accepted
  Andropogon acicularis Retz. ex Roem. & Schult. -- not accepted
  Andropogon bergii Roem. & Schultes -- not accepted
  Andropogon domingensis (Roem. & Schult.) Steud. -- not accepted
  Andropogon monticola Roem. & Schult. -- not accepted
  Andropogon pilosus Dufour ex Roem. & Schult. -- not accepted
  Androsace ochotensis Roem. & Schult. -- accepted -- Alaska dwarf-primrose
  Angostura Roem. & Schult. -- accepted
  Anoda acerifolia auct. non (Zucc. ex Roem. & Schult.) DC. -- not accepted
  Arcytophyllum Roem. & Schult. -- accepted
  Asprella australis (R. Br.) Roem. & Schult. -- not accepted
  Asprella hexandra (Sw.) Roem. & Schult. -- not accepted
  Asprella imbricata (Poir.) Roem. & Schult. -- not accepted
  Asprella lenticularis (Michx.) Roem. & Schult. -- not accepted
  Asprella mexicana (Kunth) Roem. & Schult. -- not accepted
  Asprella monandra (Sw.) Roem. & Schult. -- not accepted
  Asprella ovata (Poir.) Roem. & Schult. -- not accepted
  Asprella virginica (Willd.) Roem. & Schult. -- not accepted
  Atheropogon aristidioides (Kunth) Roem. & Schult. -- not accepted
  Atheropogon bromoides (Kunth) Roem. & Schult. -- not accepted
  Atheropogon chondrosiodes (Kunth) Roem. & Schult. -- not accepted
  Atheropogon racemosus (Lag.) Roem. & Schult. -- not accepted
  Atheropogon repens (Kunth) Roem. & Schult. -- not accepted
  Avena antarctica (Labill.) Roem. & Schult. -- not accepted
  Avena chinensis Fisch. ex Roem. & Schult. -- not accepted
  Avena cinerea hort. ex Roem. & Schult. -- not accepted
  Avena cristata Roem. & Schult. -- not accepted
  Avena flava hort. ex Roem. & Schult. -- not accepted
  Avena georgiana Roem. & Schult. -- not accepted
  Avena unilateralis Brouss, ex Roem. & Schult. -- not accepted
  Axonopus poiretii Roem. & Schult. -- not accepted
  Bouteloua meliciformis Hornem. ex Roem. & Schult. -- not accepted
  Brachiaria isachne (Roth ex Roem. & Schult.) Stapf -- not accepted
  Brachyelytrum aristatum P. Beauv. ex Roem. & Schult. -- not accepted
  Brachypodium caespitosum (Host) Roem. & Schult. -- not accepted
  Brachypodium mexicanum (Roem. & Schult.) Link -- accepted
  Brachypodium mexicanum var. mexicanum (Roem. & Schult.) Link -- accepted
  Brachypodium peruvianum Roem. & Schult. ex Kunth -- not accepted
  Brachypodium phoenicoides (L.) P. Beauv. ex Roem. & Schult. -- accepted -- thinleaf false brome
  Brachypodium rupestre (Host) Roem. & Schult. -- accepted
  Braconotia glauca (Roem. & Schult.) Godr. -- not accepted
  Briza megastachya (Koeler) hort. ex Roem. & Schult. -- not accepted
  Calceolaria scabiosifolia Roem. & Schult. -- not accepted
  Calotheca rotundata (Kunth) Roem. & Schult. -- not accepted
  Calystegia soldanella (L.) Roem. & Schult. -- accepted -- beach morningglory, seashore false bindweed
  Campuloa monostachya (Michx.) Roem. & Schult. -- not accepted
  Catabrosa pumila (Pursh) Roem. & Schult. -- not accepted
  Cenchrus brownii Roem. & Schult. -- accepted -- slimbristle sandbur
  Cephalaria Schrad. ex Roem. & Schult. -- accepted
  Cephalaria alpina (L.) Roem. & Schult. -- accepted -- yellow cephalaria
  Cephalaria syriaca (L.) Schrad. ex Roem. & Schult. -- accepted -- Syrian cephalaria
  Cephalaria tatarica auct. non Roem. & Schult. -- not accepted
  Chaetaria antillarum (Poir.) P. Beauv. ex Roem. & Schult. -- not accepted
  Chaetaria bromoides (Kunth) Roem. & Schult. -- not accepted
  Chaetaria coarctata (Kunth) Roem. & Schult. -- not accepted
  Chaetaria gossypina P. Beauv. ex Roem. & Schult. -- not accepted
  Chaetaria humilis (Kunth) Roem. & Schult. -- not accepted
  Chaetaria recurvata (Kunth) Roem. & Schult. -- not accepted
  Chaetaria spadicea (Kunth) Roem. & Schult. -- not accepted
  Chaetochloa viridis var. weinmanni (Roem. & Schult.) House -- not accepted
  Chrysopogon monticola (Roem. & Schult.) Haines -- not accepted
  Cordia alba (Jacq.) Roem. & Schult. -- not accepted -- white manjack
  Cordia alba auct. non (Jacq.) Roem. & Schult. -- not accepted
  Cordia angustifolia (West ex Willd.) Roem. & Schult. -- not accepted -- basora
  Cordia curassavica (Jacq.) Roem. & Schult. -- not accepted
  Cordia lima (Desv.) Roem. & Schult. -- not accepted -- lija
  Critesion chilense (Roem. & Schult.) Á. Löve -- not accepted
  Cymbopogon foliosus (Kunth) Roem. & Schult. -- not accepted
  Cymbopogon reflexus Roem. & Schult. -- not accepted
  Cynodon praecox (Walter) Roem. & Schult. -- not accepted
  Danthonia lupulina (L. f.) P. Beauv. ex Roem. & Schult. -- not accepted
  Danthonia pallida (Thunb.) Roem. & Schult. -- not accepted
  Danthonia purpurea P. Beauv. ex Roem. & Schult. -- not accepted
  Danthonia spicata (L.) P. Beauv. ex Roem. & Schult. -- accepted -- poverty danthonia, poverty oatgrass, poverty wild oat grass
  Danthonia spicata var. spicata (L.) P. Beauv. ex Roem. & Schult. -- not accepted
  Deschampsia alpina (L.) Roem. & Schult. -- not accepted
  Deschampsia alpina var. alpina (L.) Roem. & Schult. -- not accepted
  Deschampsia laevigata (Sm.) Roem. & Schult. -- not accepted
  Diarrhena setacea (Poir.) Roem. & Schult. -- not accepted
  Digitaria affinis Roem. & Schult. -- not accepted
  Digitaria bicornis (Lam.) Roem. & Schult. -- accepted -- Asian crabgrass
  Digitaria brownii (Roem. & Schult.) Hughes -- accepted
  Digitaria domingensis (Zuccagni) A. Roem. & Schult. -- not accepted
  Digitaria malabarica (L.) Roem. & Schult. -- not accepted
  Dinebra secunda (Pursh) Roem. & Schult. -- not accepted
  Diodella apiculata (Willd. & Roem. & Schult.) Delprete -- accepted
  Diodella radula (Willd. ex Roem. & Schult.) Delprete -- accepted
  Diodella rigida (Willd. ex Roem. & Schult.) Small -- not accepted
  Diodia apiculata (Willd. ex Roem. & Schult.) K. Schum. -- not accepted -- stiff buttonweed
  Diodia ocymifolia (Willd. ex Roem. & Schult.) Bremek. -- not accepted -- slender buttonweed
  Diodia radula (Willd. ex Roem. & Schult.) Cham. & Schltdl. -- not accepted -- rough buttonweed
  Diodia rigida (Willd. ex Roem. & Schult.) Cham. & Schltdl. -- not accepted
  Diplachne fusca (L.) P. Beauv. ex Roem. & Schult. -- not accepted
  Donax viridiflavescens (Poir.) Roem. & Schult. -- not accepted
  Douglasia ochotensis (Roem. & Schult.) Hultén -- not accepted -- Alaska dwarf-primrose
  Eleocharis acicularis (L.) Roem. & Schult. -- accepted -- needle spikerush, needle spikesedge
  Eleocharis acicularis var. acicularis (L.) Roem. & Schult. -- not accepted -- needle spike-rush, needle spikerush
  Eleocharis elegans (Kunth) Roem. & Schult. -- accepted -- elegant spikerush
  Eleocharis geniculata (L.) Roem. & Schult. -- accepted -- Canada spikesedge
  Eleocharis interstincta (Vahl) Roem. & Schult. -- accepted -- knotted spikerush
  Eleocharis montana (Kunth) Roem. & Schult. -- accepted -- mountain spike-rush, mountain spikerush
  Eleocharis mutata (L.) Roem. & Schult. -- accepted -- scallion grass
  Eleocharis ovata (Roth) Roem. & Schult. -- accepted -- ovate spikerush, ovoid spike-rush, ovoid spikerush
  Eleocharis palustris (L.) Roem. & Schult. -- accepted -- common spikerush, creeping spike-rush, creeping spikerush, marsh spike-rush, spikesedge
  Eleocharis parvula (Roem. & Schult.) Link ex Bluff, Nees & Schauer -- accepted -- dwarf spikerush, dwarf spikesedge, little-head spike-rush, little-head spikerush
  Eleocharis quadrangulata (Michx.) Roem. & Schult. -- accepted -- squarestem spikerush, squarestem spikesedge
  Eleocharis tuberculosa (Michx.) Roem. & Schult. -- accepted -- cone-cup spikerush
  Eleusine racemosa B. Heyne ex Roem. & Schult. -- not accepted
  Elymus hirsutus Schreb. ex Roem. & Schult. -- not accepted
  Elytrigia repens var. subulatum (Roem. & Schult.) Prokudin -- not accepted
  Enneapogon phleioides Roem. & Schult. -- not accepted
  Eragrostis poaeoides P. Beauv. ex Roem. & Schult. -- not accepted
  Eragrostis tenella (L.) P. Beauv. ex Roem. & Schult. -- accepted -- Japanese lovegrass
  Eragrostis vahlii (Roem. & Schult.) Nees -- not accepted
  Eragrostis verticillata (Cav.) Roem. & Schult. -- not accepted
  Eragrostis vulgaris ssp. poaeoides (P. Beauv. ex Roem. & Schult.) R.C.V. Douin -- not accepted
  Eranthemum nervosum (Vahl) R. Br. ex Roem. & Schult. -- not accepted
  Eriocoma hymenoides (Roem. & Schult.) Rydb. -- not accepted
  Eriphia jamaicensis Roem. & Schult. -- not accepted
  Eustachys submutica (Kunth) Roem. & Schult. -- not accepted
  Exostema caribaeum (Jacq.) Roem. & Schult. -- accepted -- Caribbean princewood, princewood
  Festuca aquatica Bosc ex Roem. & Schult. -- not accepted
  Festuca caespitosa (G. Forst.) Roem. & Schult. -- not accepted
  Festuca mexicana Roem. & Schult. -- not accepted
  Festuca pectiniformis (Roem. & Schult.) A. V. Bukhteeva -- not accepted
  Fimbristylis annua (All.) Roem. & Schult. -- not accepted -- annual fimbry
  Fimbristylis autumnalis (L.) Roem. & Schult. -- accepted -- slender fimbry
  Fimbristylis bengalensis (Pers.) Roem. & Schult. -- not accepted -- fimbry
  Fluminia arundinacea (Roem. & Schult.) Fr. -- not accepted
  Fouquieria fasciculata (Willd. ex Roem. & Schult.) Nash -- accepted
  Galium anglicum var. parvifolium (Gaudich. ex Roem. & Schult.) DC. -- not accepted
  Galium boreale ssp. septentrionale (Roem. & Schult.) H. Hara -- not accepted
  Galium boreale ssp. septentrionale (Roem. & Schult.) Iltis -- not accepted
  Galium boreale var. septentrionalis (Roem. & Schult.) H. Hara -- not accepted
  Galium circaeoides Roem. & Schult. -- not accepted
  Galium parisiense ssp. parvifolium (Gaudich. ex Roem. & Schult.) Gaudich. -- not accepted
  Galium parvifolium Gaudich. ex Roem. & Schult. -- not accepted
  Galium septentrionale Roem. & Schult. -- not accepted
  Glyceria arundinacea (Roem. & Schult.) Fr. -- not accepted
  Graphephorum arundinaceum (Roem. & Schult.) Asch. -- not accepted
  Gymnothrix latifolia (Spreng.) Schult. ex Roem. & Schult. -- not accepted
  Hedyotis canadensis (Willd. ex Roem. & Schult.) Fosberg -- not accepted
  Hedyotis pygmaea Roem. & Schult. -- not accepted
  Hemidiodia ocymifolia (Willd. ex Roem. & Schult.) K. Schum. -- not accepted
  Heteropogon contortus (L.) P. Beauv. ex Roem. & Schult. -- accepted -- tangelhead, tanglehead
  Heuchera glabra Willd. ex Roem. & Schult. -- accepted -- alpine alumroot, alpine heuchera
  Hierochloe alpina (Sw. ex Willd.) Roem. & Schult. -- not accepted -- alpine sweetgrass
  Hierochloe alpina f. alpina (Sw. ex Willd.) Roem. & Schult. -- not accepted
  Hierochloe alpina ssp. alpina (Sw. ex Willd.) Roem. & Schult. -- not accepted -- alpine sweetgrass
  Hierochloe alpina var. alpina (Sw. ex Willd.) Roem. & Schult. -- not accepted
  Hierochloe borealis (Schrad.) Roem. & Schult. -- not accepted
  Hierochloe fragrans (Willd.) Roem. & Schult. -- not accepted
  Hierochloe redolens (Vahl) Roem. & Schult. -- not accepted
  Hierochloe redolens var. redolens (Vahl) Roem. & Schult. -- not accepted
  Hordeum chilense Roem. & Schult. -- accepted
  Hordeum chilense var. chilense Roem. & Schult. -- not accepted
  Houstonia canadensis Willd. ex Roem. & Schult. -- accepted -- Canadian summer bluet
  Ichnanthus hoffmannseggii (Roem. & Schult.) Döll -- accepted
  Imperata spontanea (L.) P. Beauv. ex Roem. & Schult. -- not accepted
  Ipomoea acuminata (Vahl) Roem. & Schult. -- not accepted
  Ipomoea asarifolia (Desr.) Roem. & Schult. -- accepted -- ginger-leaf morning-glory
  Ipomoea coptica (L.) Roth ex Roem. & Schult. -- accepted -- alamo vine, alamovine
  Ipomoea corymbosa (L.) Roth ex Roem. & Schult. -- not accepted
  Ipomoea dumetorum Willd. ex Roem. & Schult. -- accepted -- railwaycreeper
  Ipomoea hispida (Vahl) Roem. & Schult. -- not accepted
  Ipomoea macrantha Roem. & Schult. -- not accepted
  Ipomoea polyanthes Roem. & Schult. -- not accepted
  Ipomoea triquetra (Vahl) Roem. & Schult. -- not accepted
  Ischnanthus Roem. & Schult. -- not accepted
  Isolepis cernua (Vahl) Roem. & Schult. -- accepted -- low bulrush
  Ixia acuta Bartram, non Licht. ex Roem. & Schult. -- not accepted
  Leptochloa racemosa (B. Heyne ex Roem. & Schult.) Kunth -- not accepted
  Lolium giganteum Roem. & Schult. -- not accepted
  Lucuma caimito (Ruiz & Pav.) Roem. & Schult. -- not accepted
  Megastachya acutiflora (Kunth) Roem. & Schult. -- not accepted
  Megastachya aturensis (Kunth) Roem. & Schult. -- not accepted
  Megastachya canadensis (Michx.) Michx. ex Roem. & Schult. -- not accepted
  Megastachya eragrostis (L.) P. Beauv. ex Roem. & Schult. -- not accepted
  Megastachya infirma (Kunth) Roem. & Schult. -- not accepted
  Megastachya maypurensis (Kunth) Roem. & Schult. -- not accepted
  Megastachya montufari (Kunth) Roem. & Schult. -- not accepted
  Megastachya nigricans (Kunth) Roem. & Schult. -- not accepted
  Megastachya olmedoi (Kunth) Roem. & Schult. -- not accepted
  Megastachya pastoensis (Kunth) Roem. & Schult. -- not accepted
  Megastachya prostrata (Kunth) Roem. & Schult. -- not accepted
  Megastachya spectabilis (Pursh) Roem. & Schult. -- not accepted
  Megastachya tenax (Kunth) Roem. & Schult. -- not accepted
  Megastachya thalassica (Kunth) Roem. & Schult. -- not accepted
  Milium lanatum (Kunth) Roem. & Schult. -- not accepted
  Milium rigidifolium (Poir.) Roem. & Schult. -- not accepted
  Mitracarpus frigidus (Willd. ex Roem. & Schult.) K. Schum. -- accepted -- frigid girdlepod
  Monachne unilateralis Roem. & Schult. -- not accepted
  Monerma gangitis (L.) Roem. & Schult. -- not accepted
  Muhlenbergia foliosa (hort. ex Roem. & Schult.) Trin. -- not accepted
  Myosotis stricta Link ex Roem. & Schult. -- accepted -- strict forget-me-not
  Myrsine coriacea (Sw.) R. Br. ex Roem. & Schult. -- accepted -- leathery colicwood
  Oplismenus pseudoundulatifolius (Roem. & Schult.) Kunth -- not accepted
  Oplismenus setarius (Lam.) Roem. & Schult. -- not accepted -- shortleaf basketgrass
  Oplismenus undulatifolius (Ard.) Roem. & Schult. -- not accepted
  Oryzopsis hymenoides (Roem. & Schult.) Ricker -- not accepted
  Oryzopsis hymenoides var. hymenoides (Roem. & Schult.) Ricker -- not accepted
  Panicum affine (Roem. & Schult.) Nees -- not accepted
  Panicum decumbens (Sw.) Roem. & Schult. -- not accepted
  Panicum hirticalycinum Bosc ex Roem. & Schult. -- not accepted
  Panicum hoffmannseggii Roem. & Schult. -- not accepted
  Panicum isachne Roth ex Roem. & Schult. -- not accepted
  Panicum lagascae (Roem. & Schult.) Kuntze -- not accepted
  Panicum michauxii Roem. & Schult. -- not accepted
  Panicum patentissimum Roem. & Schult. -- not accepted
  Panicum pseudoundulatifolium Roem. & Schult. -- not accepted
  Panicum rectum Roem. & Schult. -- not accepted
  Panicum rudgei Roem. & Schult. -- accepted
  Panicum strictum Bosc ex Roem. & Schult. -- not accepted
  Panicum villosum Hoffmanns. ex Roem. & Schult. -- not accepted
  Panicum viride var. weinmanni (Roem. & Schult.) Kneuck. -- not accepted
  Panicum viride var. weinmennii (Roem. & Schult.) Asch. & Graebn. -- not accepted
  Paspalum blepharophorum Roem. & Schult. -- not accepted
  Paspalum blepharophorum var. blepharophorum Roem. & Schult. -- not accepted
  Paspalum dissectum Sw. ex Roem. & Schult. -- not accepted
  Paspalum elegans (Pers.) Roem. & Schult. -- not accepted
  Paspalum incertum Roem. & Schult. -- not accepted
  Paspalum infirmum Roem. & Schult. -- not accepted
  Paspalum lagascae Roem. & Schult. -- not accepted
  Paspalum poiretii Roem. & Schult. -- not accepted
  Pennisetum scandens J. Jacq. ex Roem. & Schult. -- not accepted
  Pennisetum spicatum (L.) Roem. & Schult. -- not accepted
  Phalaris commutata Roem. & Schult. -- not accepted
  Physalis lagascae Roem. & Schult. -- not accepted
  Plantago oliganthos Roem. & Schult. -- not accepted
  Plantago purshii Roem. & Schult. -- not accepted
  Poa dissitiflora Roem. & Schult. -- not accepted
  Poa gelida Roem. & Schult. -- not accepted
  Poa paradoxa Roem. & Schult. -- not accepted
  Poa pauciflora Roem. & Schult. -- accepted
  Poa pratensis var. gelida (Roem. & Schult.) Böcher -- not accepted
  Poa rariflora (Lam.) Roem. & Schult. -- not accepted
  Poa secunda Zea ex Roem. & Schult. -- not accepted
  Poa squarrosa Roem. & Schult. -- not accepted
  Poa subumbellata Roem. & Schult. -- not accepted
  Poa sulcata Roem. & Schult. -- not accepted
  Poa vahlii Roem. & Schult. -- not accepted
  Podosemum foliosum (hort. ex Roem. & Schult.) Link -- not accepted
  Pogonarthria squarrosa (Roem. & Schult.) Pilg. -- accepted
  Polemonium acutiflorum Willd. ex Roem. & Schult. -- not accepted -- tall Jacob's-ladder
  Psamma arenaria (L.) Roem. & Schult. -- not accepted
  Psychotria hoffmannseggiana (Roem. & Schult.) Müll. Arg. -- accepted -- Hoffmannsegg's wild coffee
  Rauvolfia heterophylla Roem. & Schult. -- not accepted
  Rauvolfia viridis Willd. ex Roem. & Schult. -- accepted -- bois lait, matteroot, milkbush, milky bush
  Renealmia antillarua auct. non (Roem. & Schult.) Gagnep. -- not accepted
  Renealmia antillarum auct. non (Roem. & Schult.) Gagnep. -- not accepted
  Rhaphis acicularis (Retz. ex Roem. & Schult.) Desv. -- not accepted
  Ribes multiflorum Kit. ex Roem. & Schult. -- accepted -- manyflower currant
  Roemeria Zea ex Roem. & Schult. -- not accepted
  Roemeria zeae Roem. & Schult. -- not accepted
  Rottboellia incurva (L.) Roem. & Schult. -- not accepted
  Sabicea villosa Willd. ex Roem. & Schult. -- accepted -- woolly woodvine
  Saccharum officinarum var. otaheitense Roem. & Schult. -- not accepted
  Salvia splendens Sellow ex Roem. & Schult. -- accepted -- scarlet sage
  Schedonorus americanus (Pers.) Roem. & Schult. -- not accepted
  Schedonorus arundinaceus Roem. & Schult. -- not accepted
  Schedonorus bonariensis (Lam.) Roem. & Schult. -- not accepted
  Schedonorus caldasii (Kunth) Roem. & Schult. -- not accepted
  Schedonorus giganteus Gaudin ex Roem. & Schult. -- not accepted
  Schedonorus lanatus (Kunth) Roem. & Schult. -- not accepted
  Schedonorus lividus (Kunth) Roem. & Schult. -- not accepted
  Schedonorus obtusus (Biehler) Roem. & Schult. -- not accepted
  Schedonorus procerus (Kunth) Roem. & Schult. -- not accepted
  Schedonorus spicatus (Pursh) Roem. & Schult. -- not accepted
  Schedonorus unioloides (Kunth) Roem. & Schult. -- not accepted
  Schenodorus arundinaceus Gaudin ex Roem. & Schult. -- not accepted
  Schenodorus lanatus (Kunth) Roem. & Schult. -- not accepted
  Schismus minutus (Hoffm.) Roem. & Schult. -- not accepted
  Schoenodorus Roem. & Schult. -- not accepted
  Schoenus apogon Roem. & Schult. -- accepted -- smooth bogrush
  Scirpus maritimus var. tuberosus auct. non (Desf.) Roem. & Schult. -- not accepted
  Scirpus micranthus var. minor (Schrad. ex Roem. & Schult.) B. Boivin -- not accepted
  Scolochloa arundinacea (Roem. & Schult.) MacMill. -- not accepted
  Sehima nervosum (Rottler ex Roem. & Schult.) Stapf -- accepted
  Setaria caudata (Lam.) Roem. & Schult. -- not accepted
  Setaria cenchroides (Rich.) Roem. & Schult. -- not accepted
  Setaria elliottiana Roem. & Schult. -- not accepted
  Setaria imberbis (Poir.) Roem. & Schult. -- not accepted
  Setaria pennisetum (Roth) Roem. & Schult. -- not accepted
  Setaria pumila (Poir.) Roem. & Schult. -- accepted -- cattail grass, yellow bristle grass, yellow bristlegrass
  Setaria pumila ssp. pumila (Poir.) Roem. & Schult. -- not accepted
  Setaria viridis var. weinmannii (Roem. & Schult.) Heynh. -- not accepted
  Setaria viridis var. weinmannii (Roem. & Schult.) Heuff. -- not accepted
  Setaria viridis var. weinmannii (Roem. & Schult.) Brand -- not accepted
  Setaria viridis var. weinmannii (Roem. & Schult.) Borbás -- not accepted
  Setaria vulpiseta (Lam.) Roem. & Schult. -- accepted -- plains bristlegrass
  Setaria vulpiseta var. vulpiseta (Lam.) Roem. & Schult. -- accepted
  Setaria weinmannii Roem. & Schult. -- not accepted
  Solanum bicolor Roem. & Schult. -- accepted
  Solanum campaniforme Roem. & Schult. -- accepted
  Solanum multiflorum Roth ex Roem. & Schult. -- accepted
  Solanum stipulaceum Roem. & Schult. -- accepted
  Solanum sublobatum auct. non Willd. ex Roem. & Schult. -- not accepted
  Solanum swartzianum Roem. & Schult. -- accepted
  Sorghum asperum (Thunb.) Roem. & Schult. -- not accepted
  Sorghum capillare (Thunb.) Roem. & Schult. -- not accepted
  Spermacoce ocymifolia Willd. ex Roem. & Schult. -- accepted
  Sporobolus poiretii (Roem. & Schult.) Hitchc. -- not accepted
  Stipa hymenoides Roem. & Schult. -- not accepted
  Tabernaemontana divaricata (L.) R. Br. ex Roem. & Schult. -- accepted -- pinwheelflower
  Thuarea involuta (G. Forst.) R. Br. ex Roem. & Schult. -- accepted -- Kuroiwa grass
  Torresia redolens (Vahl) Roem. & Schult. -- not accepted
  Tournefortia gnaphalodes (L.) R. Br. ex Roem. & Schult. -- accepted
  Trema lamarckiana (Roem. & Schult.) Blume -- accepted -- Lamarck's trema
  Trema lamarckianum (Roem. & Schult.) Blume -- not accepted -- Lamarck's trema
  Trichochloa alpestris (Kunth) Roem. & Schult. -- not accepted
  Trichochloa ciliata (Kunth) Roem. & Schult. -- not accepted
  Trichochloa debilis (Kunth) Roem. & Schult. -- not accepted
  Trichochloa elegans (Kunth) Roem. & Schult. -- not accepted
  Trichochloa gracilis (Kunth) Roem. & Schult. -- not accepted
  Trichochloa implicata (Kunth) Roem. & Schult. -- not accepted
  Trichochloa mucronata (Kunth) Roem. & Schult. -- not accepted
  Trichochloa quadridentata (Kunth) Roem. & Schult. -- not accepted
  Trichochloa rigida (Kunth) Roem. & Schult. -- not accepted
  Trichochloa setosa (Kunth) Roem. & Schult. -- not accepted
  Trichochloa stipoides (Kunth) Roem. & Schult. -- not accepted
  Trichochloa tenella (Kunth) Roem. & Schult. -- not accepted
  Trichodium algidum (Sol.) Roem. & Schult. -- not accepted
  Trichodium strictum Roem. & Schult. -- not accepted
  Tridens Roem. & Schult. -- accepted -- tridens, tridens spp.
  Tridens quinquefidus (Pursh) Roem. & Schult. -- not accepted
  Tripogon Roem. & Schult. -- accepted -- fiveminute grass
  Trisetum airoides (Koeler) P. Beauv. ex Roem. & Schult. -- not accepted
  Trisetum pensylvanicum (L.) P. Beauv. ex Roem. & Schult. -- not accepted
  Triticum aegilops P. Beauv. ex Roem. & Schult. -- not accepted
  Triticum mexicanum (Roem. & Schult.) Schrad. ex Steud. -- not accepted
  Triticum pectiniforme (Roem. & Schult.) Steud. -- not accepted
  Triticum repens var. subulatum (Roem. & Schult.) Nees -- not accepted
  Uniola distichophylla (Michx.) Roem. & Schult. -- not accepted
  Veronica barrelieri Schott ex Roem. & Schult. -- accepted
  Veronica wormskjoldii Roem. & Schult. -- accepted -- American alpine speedwell
  Veronica wormskjoldii ssp. wormskjoldii Roem. & Schult. -- accepted -- American alpine speedwell
  Veronica wormskjoldii var. wormskjoldii Roem. & Schult. -- not accepted -- American alpine speedwell
  Viola kitaibeliana auct. non Roem. & Schult. -- not accepted
  Zeia glauca (Roem. & Schult.) Lunell -- not accepted
   

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