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Taxon author: J. Presl

ITIS records citing taxon author "J. Presl"
 
 Kingdom Plantae
  Agropyron caesium J. Presl & C. Presl -- not accepted
  Agropyron condensatum J. Presl -- not accepted
  Agropyron magellanicum var. condensatum (J. Presl) Hauman & Van der Veken -- not accepted
  Agropyron pilosum J. Presl -- not accepted
  Agropyron secundum J. Presl -- not accepted
  Agrostis arundinacea J. Presl -- not accepted
  Agrostis caespitosa J. Presl -- not accepted
  Agrostis eminens (J. Presl) Griseb. -- not accepted
  Agrostis glabra (J. Presl) Kunth -- accepted
  Agrostis glabra var. glabra (J. Presl) Kunth -- accepted
  Agrostis glomerata (J. Presl) Kunth -- not accepted
  Agrostis mucronata J. Presl -- not accepted
  Agrostis muricata (J. Presl) Kunth -- not accepted
  Agrostis nana (J. Presl) Kunth -- not accepted
  Agrostis rigescens J. Presl -- not accepted
  Aira calycina (J. Presl) Steud. -- not accepted
  Aira holciformis (J. Presl) Steud. -- not accepted
  Aira tenuifolia (J. Presl) Steud. -- not accepted
  Alloteropsis J. Presl -- accepted -- summergrass
  Amphilophis hirtifolius (J. Presl) Nash -- not accepted
  Andropogon alternans J. Presl -- accepted
  Andropogon amplus J. Presl -- not accepted
  Andropogon angustatus (J. Presl) Steud. -- accepted
  Andropogon festucoides J. Presl -- not accepted
  Andropogon firmus (J. Presl) Kunth -- not accepted
  Andropogon flavescens J. Presl -- accepted
  Andropogon gracilis J. Presl -- not accepted
  Andropogon hirtifolius J. Presl -- not accepted
  Andropogon hirtifolius var. hirtifolius J. Presl -- not accepted
  Andropogon incompletus J. Presl -- not accepted
  Andropogon malacostachyus J. Presl -- not accepted
  Andropogon minor (J. Presl) Steud. -- not accepted
  Andropogon myosurus J. Presl -- not accepted
  Andropogon nutans var. incompletus (J. Presl) Hack. -- not accepted
  Andropogon scoparius J. Presl -- not accepted
  Andropogon secundus (J. Presl) Kunth -- not accepted
  Andropogon subulatus J. Presl -- not accepted
  Andropogon tenellus J. Presl -- not accepted
  Andropogon vaginatus J. Presl -- not accepted
  Aneurolepidium condensatum (J. Presl) Nevski -- not accepted
  Anthistiria pilosa J. Presl -- not accepted
  Anthoxanthum hirtum ssp. arcticum (J. Presl) G.C. Tucker -- accepted
  Apluda humilis (J. Presl) Kunth -- not accepted
  Arceuthobium vaginatum (Willd.) J. Presl -- not accepted
  Arceuthobium vaginatum (Willd.) J. Presl -- accepted -- pine dwarf mistletoe, pineland dwarf mistletoe
  Arctopoa eminens (J. Presl) Prob. -- accepted
  Aristida adscensionis var. nigrescens (J. Presl) Beetle -- not accepted
  Aristida crinita J. Presl -- not accepted
  Aristida dispersa var. nigrescens (J. Presl) Trin. & Rupr. -- not accepted
  Aristida laxa var. longiramea (J. Presl) Henrard -- accepted
  Aristida longiramea J. Presl -- not accepted
  Aristida longiramea var. longiramea J. Presl -- not accepted
  Aristida nigrescens J. Presl -- not accepted
  Aristida sorzogonensis J. Presl -- not accepted
  Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl -- accepted -- tall oatgrass
  Arrhenatherum elatius ssp. elatius (L.) P. Beauv. ex J. Presl & C. Presl -- accepted
  Arrhenatherum elatius var. elatius (L.) P. Beauv. ex J. Presl & C. Presl -- accepted -- tall oatgrass
  Arundarbor amplexifolia (J. Presl) Kuntze -- not accepted
  Arundinella peruviana (J. Presl) Steud. -- not accepted
  Arundinella scoparia (J. Presl) E. Fourn. -- not accepted
  Atropis tenuifolia (J. Presl) Speg. -- not accepted
  Atropis tenuifolia (J. Presl) Hauman -- not accepted
  Aulonemia parviflora (J. Presl) McClure -- accepted
  Avena nutkaensis J. Presl -- not accepted
  Avena pilosa J. Presl -- not accepted
  Avena trichopodia J. Presl -- not accepted
  Axonopus appendiculatus (J. Presl) Hitchc. & Chase -- not accepted
  Axonopus attenuatus (J. Presl) Hitchc. -- not accepted
  Axonopus elegantulus (J. Presl) Hitchc. -- accepted
  Bambusa amplexifolia (J. Presl) Schult. f. -- not accepted
  Bambusa parviflora (J. Presl) Schult. & Schult. f. -- not accepted
  Barbarea arcuata (Opiz ex J. Presl & C. Presl) Rchb. -- not accepted
  Barbarea vulgaris var. arcuata (Opiz ex J. Presl & C. Presl) Fr. -- not accepted
  Barbarea vulgarus var. arcuata (Opiz ex J. Presl & C. Presl) Fr. -- not accepted
  Berchtoldia J. Presl -- not accepted
  Berchtoldia bromoides J. Presl -- not accepted
  Bothriochloa hirtifolia (J. Presl) Henrard -- accepted
  Bothriochloa hirtifolia var. hirtifolia (J. Presl) Henrard -- not accepted
  Brachiaria miliiformis (J. Presl) Chase -- not accepted
  Briza macrostachya (J. Presl) Steud. -- not accepted
  Briza microstachya (J. Presl) Steud. -- not accepted
  Briza poimorpha (J. Presl) Henrard -- not accepted
  Briza reniformis (J. Presl) Steud. -- not accepted
  Briza rufa (J. Presl) Steud. -- not accepted
  Briza rufa var. rufa (J. Presl) Steud. -- not accepted
  Briza spicigera (J. Presl) Steud. -- not accepted
  Brizopyrum boreale J. Presl -- not accepted
  Brizopyrum calycinum J. Presl -- not accepted
  Brizopyrum condensatum (J. Presl) E. Fourn. -- not accepted
  Brizopyrum pilosum J. Presl -- not accepted
  Brizopyrum subspicatum J. Presl -- not accepted
  Brizopyrum uninervium (J. Presl) E. Fourn. -- not accepted
  Bromidium hygrometricum var. rigescens (J. Presl) Kuntze -- not accepted
  Bromidium rigescens (J. Presl) Nees & Meyen -- not accepted
  Bromidium rigescens var. rigescens (J. Presl) Nees & Meyen -- not accepted
  Bromus depauperatus J. Presl -- not accepted
  Bromus haenkeanus (J. Presl) Kunth -- not accepted
  Bromus lenis J. Presl -- not accepted
  Bromus luzonensis J. Presl -- accepted -- hoary brome
  Bromus macranthos var. setifolius (J. Presl) E. Desv. -- not accepted
  Bromus secundus J. Presl -- not accepted
  Bromus setifolius J. Presl -- accepted
  Bromus setifolius var. setifolius J. Presl -- accepted
  Bromus tenuis J. Presl ex Steud. -- not accepted
  Bromus unioloides var. haenkeanus (J. Presl) Shear -- not accepted
  Bromus virgatus J. Presl -- not accepted
  Bromus willdenowii var. haenkeanus (J. Presl) Shear -- not accepted
  Calamagrostis alba (J. Presl) Steud. -- accepted
  Calamagrostis alba ssp. alba (J. Presl) Steud. -- accepted
  Calamagrostis brevifolia (J. Presl) Steud. -- accepted
  Calamagrostis brevifolia var. brevifolia (J. Presl) Steud. -- accepted
  Calamagrostis canadensis var. scabra (J. Presl) Hitchc. -- not accepted
  Calamagrostis chrysantha (J. Presl) Steud. -- accepted
  Calamagrostis chrysantha var. chrysantha (J. Presl) Steud. -- accepted
  Calamagrostis densiflora (J. Presl) Steud. -- accepted
  Calamagrostis eminens (J. Presl) Steud. -- accepted
  Calamagrostis eminens f. eminens (J. Presl) Steud. -- not accepted
  Calamagrostis eminens var. eminens (J. Presl) Steud. -- accepted
  Calamagrostis fuscata (J. Presl) Steud. -- accepted
  Calamagrostis intermedia (J. Presl) Steud. -- accepted
  Calamagrostis nutkaensis (J. Presl) Steud. -- accepted -- Pacific reedgrass
  Calamagrostis ovata (J. Presl) Steud. -- accepted
  Calamagrostis ovata var. ovata (J. Presl) Steud. -- accepted
  Calamagrostis pallens (J. Presl) Steud. -- not accepted
  Calamagrostis rigescens (J. Presl) Scribn. -- accepted
  Calamagrostis scabra J. Presl -- not accepted
  Calamagrostis spicigera (J. Presl) Steud. -- accepted
  Calamagrostis spicigera var. spicigera (J. Presl) Steud. -- accepted
  Calamina humilis J. Presl -- not accepted
  Calotheca macrostachya J. Presl -- not accepted
  Calotheca microstachya J. Presl -- not accepted
  Calotheca reniformis J. Presl -- not accepted
  Campulosus planifolius J. Presl -- not accepted
  Carex anthoxanthea J. Presl & C. Presl -- accepted -- grassyslope arctic sedge
  Carex physocarpa J. Presl & C. Presl -- not accepted
  Catabrosa tenuifolia J. Presl -- not accepted
  Cathestecum J. Presl -- not accepted -- cathestecum, false grama
  Cathestecum prostratum J. Presl -- not accepted
  Cenchrus alopecuroides J. Presl -- not accepted
  Cenchrus multiflorus J. Presl -- accepted
  Ceratochloa haenkeana J. Presl -- not accepted
  Ceratochloa secunda J. Presl -- not accepted
  Chaetium bromoides (J. Presl) Benth. ex Hemsl. -- accepted
  Chamaeraphis penicillata (Willd. ex Nees) J. Presl ex Stuck. -- not accepted
  Chamaeraphis uniseta (J. Presl) Kuntze -- not accepted
  Chascolytrum rufum J. Presl -- not accepted
  Chascolytrum spicigerum J. Presl -- not accepted
  Chloris alba J. Presl -- not accepted
  Chloris chloridea (J. Presl) Hitchc. -- not accepted
  Chrysopogon festucoides (J. Presl) Veldkamp -- not accepted
  Chrysopogon subulatus (J. Presl) Trin. ex Steud. -- not accepted
  Cinna setifolia (J. Presl) Kunth -- not accepted
  Cinnamomum camphora (L.) J. Presl -- accepted -- camphor laurel, camphor tree, camphortree
  Cinnamomum montanum (Sw.) Bercht. & J. Presl. -- accepted -- avispillo
  Cinnamomum verum J. Presl -- accepted -- cinnamon
  Critesion comosum (J. Presl) Á. Löve -- not accepted
  Critesion muticum (J. Presl) Á. Löve -- not accepted
  Crypsinna setifolia (J. Presl) E. Fourn. -- not accepted
  Crypsis setifolia J. Presl -- not accepted
  Ctenium planifolium (J. Presl) Kunth -- accepted
  Cymbachne angustata (J. Presl) Roberty -- not accepted
  Cynodon arcuatus J. Presl -- not accepted
  Cynodon erectus J. Presl -- not accepted
  Cynophalla (DC.) J. Presl -- accepted -- caper-tree
  Cynophalla flexuosa (L.) J. Presl -- accepted -- falseteeth
  Cynophalla hastata (Jacq.) J. Presl -- accepted
  Cyperus flavus (Vahl) Nees, non J. Presl & C. Presl -- not accepted
  Cyperus lanceolatus var. compositus J. Presl & C. Presl -- not accepted
  Cyperus obtusatus (J. Presl & C. Presl) Mattf. & Kük. -- not accepted -- Caribbean Island flatsedge
  Danthonia secundiflora J. Presl -- accepted
  Danthonia secundiflora ssp. secundiflora J. Presl -- accepted
  Deschampsia brevifolia var. holciformis (J. Presl) W. E. Lawr. -- not accepted
  Deschampsia caespitosa ssp. holciformis (J. Presl) W.E. Lawrence -- not accepted
  Deschampsia calycina J. Presl -- not accepted
  Deschampsia cespitosa ssp. holciformis (J. Presl) W.E. Lawr. -- accepted -- Pacific hairgrass
  Deschampsia holciformis J. Presl -- not accepted -- Pacific hairgrass
  Deschampsia nitida J. Presl -- not accepted
  Deyeuxia alba J. Presl -- not accepted
  Deyeuxia alba ssp. alba J. Presl -- not accepted
  Deyeuxia brevifolia J. Presl -- not accepted
  Deyeuxia brevifolia var. brevifolia J. Presl -- not accepted
  Deyeuxia chrysantha J. Presl -- not accepted
  Deyeuxia chrysantha var. chrysantha J. Presl -- not accepted
  Deyeuxia densiflora J. Presl -- not accepted
  Deyeuxia eminens J. Presl -- not accepted
  Deyeuxia eminens f. eminens J. Presl -- not accepted
  Deyeuxia eminens var. eminens J. Presl -- not accepted
  Deyeuxia fuscata J. Presl -- not accepted
  Deyeuxia intermedia J. Presl -- not accepted
  Deyeuxia nutkaensis J. Presl -- not accepted
  Deyeuxia ovata J. Presl -- not accepted
  Deyeuxia ovata var. ovata J. Presl -- not accepted
  Deyeuxia pallens J. Presl -- not accepted
  Deyeuxia rigescens (J. Presl) Türpe -- not accepted
  Deyeuxia spicigera J. Presl -- not accepted
  Deyeuxia spicigera var. spicigera J. Presl -- not accepted
  Dichanthium ischaemum subvar. hirtifolium (J. Presl) Roberty -- not accepted
  Diectomis angustata J. Presl -- not accepted
  Digitaria fusca (J. Presl) Merr. -- not accepted
  Digitaria fuscescens (J. Presl) Henrard -- accepted -- yellow crabgrass
  Digitaria fuscescens (J. Presl) J.W. Moore -- not accepted
  Digitaria microbachne (J. Presl) Henrard -- not accepted
  Digitaria pruriens var. microbachne (J. Presl) Fosberg -- not accepted
  Dineba hirsuta J. Presl -- not accepted
  Dinebra chloridea J. Presl -- not accepted
  Dinebra cristata J. Presl -- not accepted
  Dinebra hirsuta J. Presl -- not accepted
  Diplachne brevifolia J. Presl -- not accepted
  Diplachne panicoides (J. Presl) McNeill -- not accepted
  Diplachne patens (J. Presl) E. Desv. -- not accepted
  Diplachne rigescens J. Presl -- not accepted
  Diplachne scirpifolia J. Presl -- not accepted
  Diplachne uninervia (J. Presl) Parodi -- not accepted
  Diplachne uninervia f. uninervia (J. Presl) Parodi -- not accepted
  Diplachne uninervia var. uninervia (J. Presl) Parodi -- not accepted
  Diplachne virgata (J. Presl) Hack. -- not accepted
  Dissanthelium calycinum (J. Presl) Hitchc. -- accepted
  Dissanthelium calycinum ssp. calycinum (J. Presl) Hitchc. -- accepted
  Distichlis condensata (J. Presl) Hemsl. -- not accepted
  Distichlis spicata var. borealis (J. Presl) Beetle -- accepted
  Echinochloa composita J. Presl ex Nees -- not accepted
  Eleocharis atropurpurea (Retz.) J. Presl & C. Presl -- accepted -- purple spikerush
  Elymus agropyroides J. Presl -- not accepted
  Elymus agropyroides var. agropyroides J. Presl -- not accepted
  Elymus angulatus J. Presl -- accepted
  Elymus condensatus J. Presl -- not accepted
  Elymus dives J. Presl -- not accepted
  Elymus hirsutus J. Presl -- accepted -- northern ryegrass
  Elymus pilosus (J. Presl) Á. Löve -- accepted
  Elymus repens ssp. caesius (J. Presl & C. Presl) Soó -- not accepted
  Elytrigia repens ssp. caesia (J. Presl & C. Presl) Dostál -- not accepted
  Elytrigia repens var. caesium (J. Presl & C. Presl) Prokudin -- not accepted
  Enteropogon chlorideus (J. Presl) Clayton -- accepted -- buryseed umbrellagrass, windmill grass
  Epicampes J. Presl -- not accepted
  Epicampes lanata (Kunth) J. Presl ex Kunth -- not accepted
  Epicampes pubescens (Kunth) J. Presl ex Kunth -- not accepted
  Epicampes stricta J. Presl -- not accepted
  Epicampes stricta var. distichophylla (J. Presl) M.E. Jones -- not accepted
  Eragrostis acutiflora var. humilior J. Presl -- not accepted
  Eragrostis alba J. Presl -- not accepted
  Eragrostis amoena J. Presl -- not accepted
  Eragrostis condensata (J. Presl) Steud. -- accepted
  Eragrostis flavescens J. Presl -- not accepted
  Eragrostis haenkei J. Presl -- not accepted
  Eragrostis lurida J. Presl -- accepted
  Eragrostis lurida ssp. lurida J. Presl -- accepted
  Eragrostis mexicana ssp. virescens (J. Presl) S.D. Koch & Sánchez Vega -- accepted -- Mexican lovegrass
  Eragrostis panamensis J. Presl -- not accepted
  Eragrostis panicoides (J. Presl) Steud. -- not accepted
  Eragrostis reptans (Michx.) J. Presl -- not accepted
  Eragrostis secundiflora J. Presl -- accepted -- red lovegrass
  Eragrostis secundiflora ssp. secundiflora J. Presl -- accepted -- red lovegrass
  Eragrostis simpliciflora (J. Presl) Steud. -- accepted
  Eragrostis stenoclada J. Presl -- not accepted
  Eragrostis uninervia (J. Presl) Steud. -- not accepted
  Eragrostis virescens J. Presl -- not accepted
  Eragrostis vulgaris J. Presl ex Steud. -- not accepted
  Eriochloa acuminata (J. Presl) Kunth -- accepted -- taper-tip cup grass, tapertip cupgrass
  Eriochloa acuminata var. acuminata (J. Presl) Kunth -- accepted -- southwestern cupgrass, tapertip cupgrass
  Erysimum durum J. Presl & C. Presl -- not accepted -- hard wallflower
  Erysimum hieraciifolium ssp. durum (J. Presl & C. Presl) Hegi & E. Schmid -- not accepted
  Euphorbia androsaemifolia J. Presl & C. Presl -- not accepted
  Eutriana chloridea (J. Presl) Kunth -- not accepted
  Eutriana hirsuta (J. Presl) Kunth -- not accepted
  Festuca compressifolia J. Presl -- accepted
  Festuca dolichophylla J. Presl -- accepted
  Festuca rigescens (J. Presl) Kunth -- accepted
  Festuca rubra ssp. secunda (J. Presl) Pavlick -- accepted -- red fescue
  Festuca rubra ssp. secunda var. secunda (J. Presl) Scribn. -- not accepted -- red fescue
  Festuca rubra var. secunda (J. Presl) Scribn. -- not accepted
  Festuca scirpifolia (J. Presl) Kunth -- accepted
  Festuca scirpifolia ssp. scirpifolia (J. Presl) Kunth -- not accepted
  Festuca scirpifolia var. scirpifolia (J. Presl) Kunth -- not accepted
  Filipendula denudata (J. Presl & C. Presl) Fritsch -- not accepted
  Filipendula denudata (J. Presl & C. Presl) Rydb. -- not accepted
  Filipendula ulmaria ssp. denudata (J. Presl & C. Presl) Hayek -- not accepted -- queen of the meadow
  Filipendula ulmaria var. denudata (J. Presl & C. Presl) Hayne ex Maxim. -- not accepted
  Glyceria aquatica (L.) J. Presl & C. Presl -- not accepted
  Glyceria nutkaensis (J. Presl) Fr. -- not accepted
  Glyceria pauciflora J. Presl -- not accepted
  Glyceria tenuifolia (J. Presl) Steud. -- not accepted
  Gouinia virgata (J. Presl) Scribn. -- accepted
  Gouinia virgata var. virgata (J. Presl) Scribn. -- accepted
  Guadua amplexifolia J. Presl -- accepted
  Guadua parviflora J. Presl -- not accepted
  Gymnotrix latifolia J. Presl -- not accepted
  Helopus acuminatus (J. Presl) Steud. -- not accepted
  Heteropogon contortus var. hirtus (J. Presl) Fenzl ex Hack. -- not accepted
  Heteropogon firmus J. Presl -- not accepted
  Heteropogon secundus J. Presl -- not accepted
  Heteropogon stipoides J. Presl -- not accepted
  Hexarrhena J. Presl -- not accepted
  Hexarrhena cenchroides J. Presl -- not accepted
  Hierochloe arctica J. Presl -- not accepted
  Hierochloe hirta ssp. arctica (J. Presl) G. Weim. -- not accepted -- northern sweetgrass
  Hierochloe odorata ssp. arctica (J. Presl) Tzvelev -- not accepted
  Hordeum chilense var. muticum (J. Presl) Hauman -- not accepted
  Hordeum comosum J. Presl -- accepted
  Hordeum comosum var. comosum J. Presl -- not accepted
  Hordeum jubatum var. comosum (J. Presl) Kuntze -- not accepted
  Hordeum muticum J. Presl -- accepted
  Hymenachne leptostachya (J. Presl) E. Fourn. -- not accepted
  Hymenachne phleiforme (J. Presl) E. Fourn. -- not accepted
  Ichnanthus tenuis (J. Presl & C. Presl) Hitchc. & Chase -- accepted -- forest bedgrass
  Isachne poaemorpha (J. Presl) Mez ex Ekman -- not accepted
  Ischaemum minus J. Presl -- accepted
  Ischaemum peruvianum (J. Presl) Kunth -- not accepted
  Ischaemum polystachyum J. Presl -- accepted
  Ixophorus unisetus (J. Presl) Schltdl. -- accepted -- Mexican grass
  Jouvea pilosa (J. Presl) Scribn. -- accepted
  Laburnum alpinum (Mill.) J. Presl -- accepted -- Scotch laburnum
  Leersia luzonensis J. Presl -- not accepted
  Leptochloa dubia ssp. patens (J. Presl) Covas & Steibel -- not accepted
  Leptochloa filiformis var. humilior J. Presl -- not accepted
  Leptochloa fusca ssp. uninervia (J. Presl) N.W. Snow -- accepted -- Mexican sprangletop
  Leptochloa panicoides (J. Presl) Hitchc. -- accepted -- Amazon sprangletop
  Leptochloa patens (J. Presl) Kunth -- not accepted
  Leptochloa uninervia (J. Presl) Hitchc. & Chase -- not accepted -- Mexican sprangletop
  Leymus condensatus (J. Presl) Á. Löve -- accepted -- giant wildrye
  Lolium scabrum J. Presl -- not accepted
  Lombardochloa rufa (J. Presl) Roseng. & B.R. Arrill. -- not accepted
  Lombardochloa rufa var. rufa (J. Presl) Roseng. & B.R. Arrill. -- not accepted
  Malva arvensis J. Presl & C. Presl -- not accepted
  Mariscus pubescens J. Presl & C. Presl, non Cyperus pubescens Steud. -- not accepted
  Megastachya condensata J. Presl -- not accepted
  Megastachya panamensis (J. Presl) E. Fourn. -- not accepted
  Megastachya panicoides J. Presl -- not accepted
  Megastachya simpliciflora J. Presl -- not accepted
  Megastachya uninervia J. Presl -- not accepted
  Melica chilensis J. Presl -- accepted
  Microbriza poimorpha (J. Presl) Parodi ex Nicora & Rúgolo -- not accepted
  Monopogon J. Presl -- not accepted
  Monopogon avenaceus J. Presl -- not accepted
  Muhlenbergia angustata (J. Presl) Kunth -- accepted
  Muhlenbergia distichophylla (J. Presl) Kunth -- accepted
  Muhlenbergia erecta J. Presl -- not accepted
  Muhlenbergia fastigiata (J. Presl) Henrard -- accepted
  Muhlenbergia repens (J. Presl) Hitchc. -- accepted -- creeping muhly, red muhly
  Muhlenbergia stricta (J. Presl) Kunth -- accepted
  Muhlenbergia tenuissima (J. Presl) Kunth -- accepted
  Nassella inconspicua (J. Presl) Barkworth -- accepted
  Nassella melanosperma (J. Presl) Barkworth -- accepted
  Nowodworskya J. Presl -- not accepted
  Nowodworskya agrostoides J. Presl -- not accepted
  Olyra lateralis (J. Presl ex Nees) Chase -- not accepted
  Opizia J. Presl -- not accepted -- opizia
  Opizia stolonifera J. Presl -- not accepted -- Acapulco grass
  Oplismenus affinis J. Presl -- not accepted
  Oplismenus burmannii f. cristata (J. Presl) Hier. ex Peter -- not accepted
  Oplismenus compositus var. rariflorus (J. Presl) U. Scholz -- not accepted
  Oplismenus cristatus J. Presl -- not accepted
  Oplismenus rariflorus J. Presl -- not accepted
  Oplismenus repens J. Presl -- not accepted
  Oplismenus secundus J. Presl -- not accepted
  Oplismenus tenuis J. Presl & C. Presl -- not accepted
  Oryzopsis setifolia (J. Presl) Henrard -- not accepted
  Panicularia pauciflora (J. Presl) Kuntze -- not accepted
  Panicularia tenuifolia (J. Presl) Kuntze -- not accepted
  Panicum blepharophorum J. Presl -- not accepted
  Panicum capillare var. hirticaule (J. Presl) Gould -- not accepted
  Panicum cristatum (J. Presl) Steud. -- not accepted
  Panicum fimbriatum (Link) J. Presl -- not accepted
  Panicum fuscatum J. Presl ex Nees -- not accepted
  Panicum fuscescens J. Presl -- not accepted
  Panicum haenkeanum J. Presl -- accepted
  Panicum hirticaule J. Presl -- accepted -- Mexican panicgrass, roughstalk witchgrass, woodland panic
  Panicum hirticaule var. hirticaule J. Presl -- accepted -- Mexican panicgrass
  Panicum lanuginosum J. Presl -- not accepted
  Panicum laterale J. Presl -- not accepted
  Panicum laterale J. Presl ex Nees -- not accepted
  Panicum leptomerum J. Presl -- not accepted
  Panicum leptostachyum J. Presl -- not accepted
  Panicum megastachyum J. Presl -- not accepted
  Panicum microbachne J. Presl -- not accepted
  Panicum miliiforme J. Presl -- not accepted
  Panicum obtectum J. Presl -- not accepted
  Panicum paspaliforme J. Presl -- not accepted
  Panicum phleiforme J. Presl -- not accepted
  Panicum poaemorphum J. Presl -- not accepted
  Panicum polygamum var. hirticaule (J. Presl) E. Fourn. -- not accepted
  Panicum polyrrhizum J. Presl -- not accepted
  Panicum polystachyum J. Presl -- not accepted
  Panicum pubescens J. Presl ex Steud. -- not accepted
  Panicum rariflorum J. Presl ex Steud. -- not accepted
  Panicum sanguinale var. microbachne (J. Presl) Hack. -- not accepted
  Panicum secundum (J. Presl) Steud. -- not accepted
  Panicum stipatum J. Presl -- not accepted
  Panicum strumosum J. Presl -- not accepted
  Panicum unisetum (J. Presl) Trin. -- not accepted
  Parodiolyra lateralis (J. Presl ex Nees) Soderstr. & Zuloaga -- accepted
  Paspalum appendiculatum J. Presl -- not accepted
  Paspalum attenuatum J. Presl -- not accepted
  Paspalum depauperatum J. Presl -- not accepted
  Paspalum elegantulum J. Presl -- not accepted
  Paspalum exaltatum J. Presl -- accepted
  Paspalum flavum J. Presl -- accepted
  Paspalum fuscescens J. Presl -- not accepted
  Paspalum fuscum J. Presl -- not accepted
  Paspalum haenkeanum J. Presl -- accepted
  Paspalum kleinianum J. Presl -- not accepted
  Paspalum lentiginosum J. Presl -- accepted
  Paspalum microstachyum J. Presl -- accepted
  Paspalum pedunculare J. Presl -- not accepted
  Paspalum pubescens J. Presl -- not accepted
  Paspalum pubifolium J. Presl -- not accepted
  Paspalum serpens J. Presl ex Trin. -- not accepted
  Pennisetum flavescens J. Presl -- not accepted
  Pereilema J. Presl -- accepted
  Pereilema crinitum J. Presl -- not accepted
  Pereilema crinitum var. crinitum J. Presl -- not accepted
  Perobachne J. Presl -- not accepted
  Phalaris chilensis J. Presl -- not accepted
  Pharus glochidiatus J. Presl -- not accepted
  Phippsia nutkaensis (J. Presl) Á. Löve & D. Löve -- not accepted
  Phleum haenkeanum J. Presl -- not accepted
  Piptatherum acuminatum J. Presl -- not accepted
  Piptatherum annulatum (Flüggé) J. Presl -- not accepted
  Piptochaetium J. Presl -- accepted -- needlegrass, speargrass
  Piptochaetium setifolium J. Presl -- not accepted
  Poa aestivalis J. Presl -- not accepted
  Poa amoena (J. Presl) Kunth -- not accepted
  Poa borealis (J. Presl) Kunth -- not accepted
  Poa calycina (J. Presl) Kunth -- not accepted
  Poa condensata (J. Presl) Kunth -- not accepted
  Poa eminens J. Presl -- not accepted -- largeflower speargrass
  Poa flavescens (J. Presl) Kunth -- not accepted
  Poa holciformis J. Presl -- accepted
  Poa lurida (J. Presl) Kunth -- not accepted
  Poa nutkaensis J. Presl -- not accepted
  Poa panicoides (J. Presl) Kunth -- not accepted
  Poa secunda J. Presl -- accepted -- big bluegrass, Sandberg bluegrass, Sandberg's bluegrass
  Poa secunda ssp. secunda J. Presl -- accepted
  Poa secundiflora (J. Presl) Kunth -- not accepted
  Poa simpliciflora (J. Presl) Kunth -- not accepted
  Poa subspicata (J. Presl) Kunth -- accepted
  Poa uninervia (J. Presl) Kunth -- not accepted
  Poa virescens (J. Presl) Kunth -- not accepted
  Podosemum angustatum J. Presl -- not accepted
  Podosemum distichophyllum J. Presl -- not accepted
  Podosemum strictum J. Presl -- not accepted
  Podosemum tenuissimum J. Presl -- not accepted
  Pogonopsis J. Presl -- not accepted
  Pogonopsis tenera J. Presl -- not accepted
  Poidium poimorphum (J. Presl) Matthei -- accepted
  Poidium rufum (J. Presl) Matthei -- accepted
  Polypogon flavescens J. Presl -- not accepted
  Polyschistis J. Presl -- not accepted
  Potamogeton angustifolius Bercht. & J. Presl -- not accepted
  Puccinellia nutkaensis (J. Presl) Fernald & Weath. -- accepted -- Nootka alkaligrass
  Puccinellia pauciflora (J. Presl) Munz -- not accepted
  Puccinellia pauciflora var. pauciflora (J. Presl) Munz -- not accepted
  Puccinellia tenuifolia (J. Presl) Parodi -- not accepted
  Quadrella (DC.) J. Presl -- accepted
  Quadrella jamaicensis (Jacq.) J. Presl -- accepted
  Raspailia J. Presl -- not accepted
  Raspailia agrostoidea J. Presl -- not accepted
  Sacciolepis strumosa (J. Presl) Chase -- not accepted
  Schismus patens J. Presl -- not accepted
  Schizachyrium brevifolium subvar. malachostachyum (J. Presl) Roberty -- not accepted
  Schizachyrium malacostachyum (J. Presl) Nash -- accepted
  Schizachyrium myosurum (J. Presl) A. Camus -- not accepted
  Schizachyrium sanguineum subvar. myosurus (J. Presl) Roberty -- not accepted
  Schmidtia utricularia J. Presl & C. Presl -- not accepted
  Schoenoplectus pungens var. badius (J. Presl & C. Presl) S.G. Sm. -- accepted -- common threesquare
  Scirpus americanus var. monophyllus (J. Presl & C. Presl) T. Koyama -- not accepted
  Scirpus microcarpus J. Presl & C. Presl -- accepted -- panicled bulrush, red-tinge bulrush, smallfruit bulrush
  Scirpus monophyllus J. Presl & C. Presl -- not accepted
  Scirpus pungens ssp. monophyllus (J. Presl & C. Presl) Roy L. Taylor & MacBryde -- not accepted
  Setaria penicillata (Willd. ex Nees) J. Presl -- not accepted
  Setaria rariflora J. Presl -- not accepted
  Setaria uniseta (J. Presl) E. Fourn. ex Hemsl. -- not accepted
  Sorghastrum incompletum (J. Presl) Nash -- accepted
  Sorghastrum incompletum var. incompletum (J. Presl) Nash -- accepted
  Sorghum hirtifolium (J. Presl) Kuntze -- not accepted
  Sorghum incompletum (J. Presl) Stapf -- not accepted
  Sorghum malacostachyum (J. Presl) Kuntze -- not accepted
  Sorghum myosurus (J. Presl) Kuntze -- not accepted
  Spergularia (Pers.) J. Presl & C. Presl -- accepted -- sandspurry
  Spergularia rubra (L.) J. Presl & C. Presl -- accepted -- purple sandspurry, red sandspurry
  Spergularia salina J. Presl & C. Presl -- accepted -- salt sandspurry
  Spergularia salina var. salina J. Presl & C. Presl -- not accepted -- salt sandspurry
  Spiraea denudata J. Presl & C. Presl -- not accepted
  Sporobolus ciliatus J. Presl -- not accepted
  Sporobolus eminens J. Presl -- not accepted
  Sporobolus fastigiatus J. Presl -- not accepted
  Sporobolus repens J. Presl -- not accepted
  Sporobolus scoparius J. Presl -- not accepted
  Stipa caerulea J. Presl -- not accepted
  Stipa inconspicua J. Presl -- not accepted
  Stipa melanosperma J. Presl -- not accepted
  Stipa melanosperma var. melanosperma J. Presl -- not accepted
  Stipa setifolia (J. Presl) Kunth -- not accepted
  Stipa setigera J. Presl -- not accepted
  Stylagrostis chrysantha (J. Presl) Mez -- not accepted
  Stylagrostis eminens (J. Presl) Mez -- not accepted
  Stylagrostis ovata (J. Presl) Mez -- not accepted
  Syntherisma fusca (J. Presl) Scribn. -- not accepted
  Syntherisma fuscescens (J. Presl) Scribn. -- not accepted
  Syntherisma microbachne (J. Presl) Hitchc. -- not accepted
  Syntherisma pubescens (J. Presl) Scribn. -- not accepted
  Thysanachne peruviana J. Presl -- not accepted
  Thysanachne scoparia J. Presl -- not accepted
  Torreyochloa pallida var. pauciflora (J. Presl) J.I. Davis -- accepted -- pale false mannagrass
  Torreyochloa pauciflora (J. Presl) G.L. Church -- not accepted
  Torreyochloa pauciflora var. pauciflora (J. Presl) Church -- not accepted -- weak mannagrass
  Trachypogon plumosus subvar. secundus (J. Presl) Hack. ex Henrard -- not accepted
  Trachypogon plumosus var. secundus (J. Presl) Beetle -- not accepted
  Trachypogon polymorphus subvar. secundus (J. Presl) Hack. -- not accepted
  Trachypogon preslii f. secundus (J. Presl) Andersson -- not accepted
  Trachypogon secundus (J. Presl) Scribn. -- not accepted -- onesided crinkleawn
  Trichodium album J. Presl -- not accepted
  Trichodium glabrum J. Presl -- not accepted
  Trichodium nanum J. Presl -- not accepted
  Tricholaena obtecta (J. Presl) E. Fourn. -- not accepted
  Tricholaena obtecta (J. Presl) E. Fourn. ex Hemsl. -- not accepted
  Trisetum luzonensis (J. Presl) Steud. -- not accepted
  Trisetum nutkaensis (J. Presl) Scribner & Merr. ex Davy -- not accepted
  Trisetum secundum (J. Presl) Kunth ex Macloskie -- not accepted
  Tristachya avenacea (J. Presl) Scribn. & Merr. -- accepted
  Triticum condensatum (J. Presl) Kunth -- not accepted
  Triticum luzonense (J. Presl) Kunth -- not accepted
  Triticum magellanicum var. condensata (J. Presl) Speg. -- not accepted
  Triticum magellanicum var. secundum (J. Presl) Speg. -- not accepted
  Triticum pilosum (J. Presl) Kunth -- not accepted
  Triticum secundum (J. Presl) Kunth -- not accepted
  Urochloa uniseta J. Presl -- not accepted
  Vetiveria festucoides (J. Presl) Ohwi -- not accepted
  Vilfa glomerata J. Presl -- not accepted
  Vilfa muricata J. Presl -- not accepted
  Vilfa repens (J. Presl) Trin. -- not accepted
  Vilfa scoparia (J. Presl) Steud. -- not accepted
   

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