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Taxon author: Trin.

ITIS records citing taxon author "Trin."
 
 Kingdom Animalia
  Acartia californiensis Trinast, 1976 -- valid
  Acis Canestrini, 1883 -- invalid
  Acis brevimanus Canestrini, 1883 -- invalid
  Agroeca Westring, 1861 -- valid
  Amaurobius crassipalpis Canestrini & Pavesi, 1870 -- valid
  Anguliphantes angulipalpis (Westring, 1851) -- valid
  Apostenus Westring, 1851 -- valid
  Apostenus fuscus Westring, 1851 -- valid
  Araeoncus crassiceps (Westring, 1861) -- valid
  Arcoppia bifilis (Canestrini, 1898) -- valid
  Atemnus Canestrini, 1884 -- valid
  Atemnus brevimanus (Canestrini, 1883) -- invalid
  Bathyphantes nigrinus (Westring, 1851) -- valid
  Bathyphantes parvulus (Westring, 1851) -- valid
  Belba globiceps (Canestrini & Fanzago, 1876) -- valid
  Belba pectinifera Canestrini, 1897 -- valid
  Belba subtilis Canestrini, 1897 -- valid
  Berghia Trinchese, 1877 -- valid
  Boophilus microplus (Canestrini, 1888) -- valid
  Bosellia Trinchese, 1891 -- valid
  Bosellia mimetica Trinchese, 1891 -- valid
  Calaria Trinchese, 1888 -- invalid
  Callilepis Westring, 1874 -- valid
  Capellinia Trinchese, 1874 -- invalid
  Centroribates mucronatus (G. & R. Canestrini, 1882) -- valid
  Cepheus gracilipes (Canestrini, 1897) -- valid
  Ceratinella brevipes (Westring, 1851) -- valid
  Ceratoppia longifilis (Canestrini, 1897) -- valid
  Cercidia prominens (Westring, 1851) -- valid
  Cetonana laticeps (Canestrini, 1868) -- valid
  Clubiona lutescens Westring, 1851 -- valid
  Clubiona terrestris Westring, 1851 -- valid
  Cobitis bilineata Canestrini, 1865 -- valid
  Cresmatoneta mutinensis (Canestrini, 1868) -- valid
  Cresmatoneta mutinensis mutinensis (Canestrini, 1868) -- valid
  Cyerce cristallina (Trinchese, 1881) -- valid -- harlequin glass-slug
  Cytaeis minima Trinci, 1903 -- invalid
  Diplocephalus semiglobosus (Westring, 1861) -- valid
  Drassodes Westring, 1851 -- valid
  Dugesia agilis (Stringer, 1909) -- invalid
  Dysdera ninnii Canestrini, 1868 -- valid
  Echemus angustifrons (Westring, 1861) -- valid
  Echemus angustifrons angustifrons (Westring, 1861) -- valid
  Entelecara erythropus (Westring, 1851) -- valid
  Ercolania Trinchese, 1872 -- valid
  Ercolania coerulea Trinchese, 1893 -- valid -- blue stiliger
  Eubranchus doriae (Trinchese, 1874) -- valid
  Eukoenenia madeirae Strinati and Condé, 1995 -- valid
  Euplanaria agilis (Stringer, 1909) -- invalid
  Euryopis laeta (Westring, 1861) -- valid
  Fonticola velata (Stringer, 1909) -- invalid
  Galumna castanea (Canestrini, 1898) -- valid
  Galumna cirripilis (Canestrini, 1898) -- valid
  Galumna heros (Canestrini, 1897) -- valid
  Gobius punctatissimus Canestrini, 1864 -- invalid
  Gongylidiellum compar (Westring, 1861) -- valid
  Hammerella pinnatifilis (Canestrini, 1898) -- valid
  Haplodrassus cognatus (Westring, 1861) -- valid
  Haplodrassus cognatus cognatus (Westring, 1861) -- valid
  Harpactea grisea (Canestrini, 1868) -- valid
  Hermannia dentipes Canestrini, 1898 -- valid
  Hermannia exilis Canestrini, 1897 -- valid
  Hydractinia minima (Trinci, 1903) -- valid
  Hypochthonius ventricosus (Canestrini, 1898) -- valid
  Hypsosinga albovittata (Westring, 1851) -- valid
  Improphantes decolor (Westring, 1861) -- valid
  Knipowitschia punctatissima (Canestrini, 1864) -- valid
  Leptorhoptrum robustum (Westring, 1851) -- valid
  Maso sundevalli (Westring, 1851) -- valid
  Meristacarus rubescens (Canestrini, 1897) -- valid
  Metaphire kiengiangensis Nguyen & Trinh, 2015 -- valid
  Micaria Westring, 1851 -- valid
  Micaria subopaca Westring, 1861 -- valid
  Micrargus subaequalis (Westring, 1851) -- valid
  Moebelia penicillata (Westring, 1851) -- valid
  Murcia hirtus (Canestrini & Fanzago, 1877) -- valid
  Murcia ruber (Canestrini & Fanzago, 1877) -- valid
  Neobisium dolicodactylum (Canestrini, 1874) -- valid
  Neobisium dolicodactylum dolicodactylum (Canestrini, 1874) -- valid
  Neoliodes eques (Canestrini, 1897) -- valid
  Nothrus anauniensis Canestrini & Fanzago, 1876 -- valid
  Nothrus lugubris Canestrini, 1898 -- valid
  Odontocepheus laeviusculus (Canestrini & Fanzago, 1877) -- valid
  Odontocepheus ruber (Canestrini & Fanzago, 1877) -- valid
  Oedothorax retusus (Westring, 1851) -- valid
  Opeatogenys gracilis (Canestrini, 1864) -- valid
  Oppia denticulata (G. & R. Canestrini, 1882) -- valid
  Otocepheus cristatus (Canestrini, 1897) -- valid
  Ozyptila scabricula (Westring, 1851) -- valid
  Padogobius nigricans (Canestrini, 1867) -- valid
  Pardosa agrestis (Westring, 1861) -- valid
  Pardosa agrestis agrestis (Westring, 1861) -- valid
  Pardosa septentrionalis (Westring, 1861) -- valid
  Pergalumna pterinervis (Canestrini, 1898) -- valid
  Phagocata velata (Stringer, 1909) -- valid
  Philodromus generalii Canestrini, 1868 -- valid
  Pholcomma gibbum (Westring, 1851) -- valid
  Placida Trinchese, 1876 -- valid
  Planaria agilis Stringer, 1909 -- invalid
  Planaria velata Stringer, 1909 -- invalid
  Pleuronectes conspersus Canestrini, 1861 -- invalid
  Podocoryne minima (Trinci, 1903) -- invalid
  Poecilochroa Westring, 1874 -- valid
  Porrhomma convexum (Westring, 1851) -- valid
  Sitticus caricis (Westring, 1861) -- valid
  Sitticus longipes (Canestrini, 1873) -- valid
  Sphaerichthys Canestrini, 1860 -- valid
  Sphaerichthys osphromenoides Canestrini, 1860 -- valid -- chocolate gourami
  Sphaerichthys osphromenoides osphromenoides Canestrini, 1860 -- invalid
  Stenostomum speciosum Stringer, 1918 -- invalid
  Syngnathus taenionotus Canestrini, 1871 -- valid -- darkflank pipefish, darkflank pipefish
  Tainonia bayahibe Huber & Astrin, 2009 -- valid
  Tainonia cienaga Huber & Astrin, 2009 -- valid
  Tainonia samana Huber & Astrin, 2009 -- valid
  Tainonia visite Huber & Astrin, 2009 -- valid
  Tapinopa Westring, 1851 -- valid
  Thyreosthenius parasiticus (Westring, 1851) -- valid
  Trichopsis Canestrini, 1860 -- valid -- croaking gouramis, purring gouramis
  Trichopternoides thorelli (Westring, 1861) -- valid
  Troxochrus rugulosus (Westring, 1851) -- valid
  Troxochrus scabriculus (Westring, 1851) -- valid
  Walckenaeria capito (Westring, 1861) -- valid
  Walckenaeria inflexa (Westring, 1861) -- valid
  Walckenaeria nudipalpis (Westring, 1851) -- valid
  Xerolycosa nemoralis (Westring, 1861) -- valid
  Xysticus cor Canestrini, 1873 -- valid
  Xysticus lineatus (Westring, 1851) -- valid
  Zelotes gracilis (Canestrini, 1868) -- valid
  Zelotes sardus (Canestrini, 1873) -- valid
  Zodarion italicum (Canestrini, 1868) -- valid
 
 Kingdom Plantae
  Achnatherum caudatum (Trin.) S.W.L. Jacobs & J. Everett -- not accepted -- Chilean ricegrass
  Achnatherum speciosum (Trin. & Rupr.) Barkworth -- not accepted -- desert needlegrass
  Achnatherum splendens (Trin.) Nevski -- accepted
  Achnodonton arenarium (L.) Trin. -- not accepted
  Aegialitis Trin. -- not accepted
  Aegopogon tenellus (DC.) Trin. -- not accepted -- fragile grass, fragilegrass
  Aeluropus Trin. -- accepted
  Agropyron patulum Trin. -- not accepted
  Agrostis abakanensis Less. ex Trin. -- not accepted
  Agrostis aenea (Trin.) Trin. -- not accepted
  Agrostis aequivalvis (Trin.) Trin. -- not accepted -- arctic bentgrass
  Agrostis aequivalvis var. aequivalvis (Trin.) Trin. -- not accepted
  Agrostis alba var. albida (Trin.) Griseb. -- not accepted
  Agrostis albida Trin. -- not accepted
  Agrostis anomala (Trin.) Herter -- not accepted
  Agrostis apetala Bosc ex Trin. -- not accepted
  Agrostis aphanes Trin. -- not accepted
  Agrostis asperifolia Trin. -- not accepted
  Agrostis californica Trin. -- not accepted -- California bentgrass
  Agrostis canina var. aenea Trin. -- not accepted
  Agrostis canina var. aequivalvis Trin. -- not accepted
  Agrostis canina var. melaleuca Trin. -- not accepted
  Agrostis canina var. mertensii (Trin.) Kuntze -- not accepted
  Agrostis chamaecalamus Trin. -- not accepted
  Agrostis chamissonis (Trin.) Trin. -- not accepted
  Agrostis chilensis Trin. -- not accepted
  Agrostis clavata Trin. -- accepted -- clavate bentgrass
  Agrostis clavata auct. non Trin. -- not accepted -- clavate bentgrass
  Agrostis clavata ssp. clavata Trin. -- not accepted
  Agrostis crinita Rich. ex Trin. & Rupr. -- not accepted
  Agrostis domingensis (Trin.) Schult. -- not accepted
  Agrostis elata (Pursh) Trin. -- not accepted
  Agrostis exarata Trin. -- accepted -- spike bentgrass
  Agrostis exarata f. asperifolia (Trin.) Vasey -- not accepted
  Agrostis exarata ssp. clavata (Trin.) T. Koyama -- not accepted
  Agrostis exarata ssp. exarata Trin. -- not accepted
  Agrostis exarata var. aenea (Trin.) Griseb. -- not accepted
  Agrostis exarata var. exarata Trin. -- not accepted -- spike bentgrass
  Agrostis exasperata Trin. -- not accepted
  Agrostis gelida Trin. -- not accepted
  Agrostis geminata Trin. -- not accepted -- twin bentgrass
  Agrostis geminata f. geminata Trin. -- not accepted
  Agrostis grandis Trin. -- not accepted
  Agrostis hiemalis var. geminata (Trin.) Hitchc. -- not accepted
  Agrostis hyemalis var. geminata (Trin.) Hitchc. -- not accepted
  Agrostis hyemalis var. oreophila (Trin.) Farw. -- not accepted
  Agrostis inconspicua Kunze ex Trin. -- not accepted
  Agrostis laxiflora var. mertensii (Trin.) Griseb. -- not accepted
  Agrostis melaleuca (Trin.) Hitchc. -- not accepted
  Agrostis mertensii Trin. -- accepted -- arctic bentgrass, northern bentgrass
  Agrostis meyenii Trin. -- accepted
  Agrostis michauxii Trin. -- not accepted
  Agrostis nootkaensis Trin. -- not accepted
  Agrostis oreophila Trin. -- not accepted
  Agrostis pallens Trin. -- accepted -- seashore bentgrass
  Agrostis patens Trin. -- not accepted
  Agrostis scabra var. geminata (Trin.) Swallen -- not accepted
  Agrostis schiedeana Trin. -- not accepted
  Agrostis schweinitzii Trin. -- not accepted
  Agrostis scouleri Trin. -- not accepted
  Agrostis setosa Spreng. ex Trin. -- not accepted
  Agrostis setosa Willd. ex Trin. -- not accepted
  Agrostis stolonifera ssp. albida (Trin.) Tzvelev -- not accepted
  Agrostis stricta Trin. -- not accepted
  Agrostis tenerrima Trin. -- accepted
  Agrostis thyrsoides Bosc ex Trin. -- not accepted
  Agrostis trichotoma Nees ex Trin. -- not accepted
  Agrostis umbellata Trin. -- not accepted
  Agrostis varians Trin. -- not accepted
  Aira altaica Trin. -- not accepted
  Aira anomala Trin. -- not accepted
  Aira danthonioides Trin. -- not accepted
  Aira gracilis (Pers.) Trin. -- not accepted
  Aira mexicana Trin. ex E. Fourn. -- not accepted
  Alopecurus agrestis var. creticus (Trin.) Marches. -- not accepted
  Alopecurus alpinus ssp. borealis (Trin.) Jurtzev -- not accepted
  Alopecurus alpinus var. borealis (Trin.) Griseb. -- not accepted
  Alopecurus borealis Trin. -- not accepted -- boreal alopecurus
  Alopecurus borealis ssp. borealis Trin. -- not accepted
  Alopecurus caespitosus Trin. -- not accepted
  Alopecurus creticus Trin. -- accepted -- Cretan meadow foxtail
  Alopecurus gracilis Willd. ex Trin. -- not accepted
  Alopecurus pratensis var. ruthenicus Trin. -- not accepted
  Amelichloa caudata (Trin.) Arriaga & Barkworth -- accepted
  Amphibromus scabrivalvis (Trin.) Swallen -- accepted -- swamp wallaby grass
  Amphibromus scabrivalvis var. scabrivalvis (Trin.) Swallen -- accepted
  Amphilophis perforatus (Trin. ex E. Fourn.) Nash -- not accepted
  Anastrophus laxiflorus (Trin.) Nash -- not accepted
  Anastrophus pectinatus (Nees ex Trin.) Schltdl. ex B.D. Jacks. -- not accepted
  Andropogon adustus Trin. -- not accepted
  Andropogon amplexifolius Trin. -- not accepted
  Andropogon apricus Trin. -- not accepted
  Andropogon barbinodis var. perforatus (Trin. ex E. Fourn.) Gould -- not accepted
  Andropogon bilinguis Trin. -- not accepted
  Andropogon brevis Trin. -- not accepted
  Andropogon campestris Trin. -- accepted
  Andropogon camporum Trin. ex Steud. -- not accepted
  Andropogon candidus Trin. -- not accepted
  Andropogon caucasicus Trin. -- not accepted
  Andropogon chlorostachys Trin. -- not accepted
  Andropogon ciliaris (Kunth) Trin. -- not accepted
  Andropogon confertus Trin. ex E. Fourn. -- not accepted
  Andropogon cryptopus Trin. ex Hack. -- not accepted
  Andropogon durus (Trin.) Steud. -- not accepted
  Andropogon floridus Trin. -- not accepted
  Andropogon glabratus Trin. ex E. Fourn. -- not accepted
  Andropogon glaucescens var. brevis (Trin.) Hack. -- not accepted
  Andropogon incanus var. brevis (Trin.) Hack. -- not accepted
  Andropogon intermedius var. caucasicus (Trin.) Hack. -- not accepted
  Andropogon lateralis var. brevis (Trin.) Hack. ex Henrard -- not accepted
  Andropogon leptophyllus Trin. -- not accepted
  Andropogon lithophilus Trin. -- not accepted
  Andropogon macroglossus (Trin.) Steud. -- not accepted
  Andropogon macrothrix Trin. -- accepted
  Andropogon montanus J. König ex Trin. -- not accepted
  Andropogon neesii Trin. -- not accepted
  Andropogon pachnodes Trin. -- not accepted
  Andropogon perforatus Trin. ex E. Fourn. -- not accepted
  Andropogon riedelii Trin. -- not accepted
  Andropogon rostratus (Nees) Trin. -- not accepted
  Andropogon saccharoides subvar. perforatus (Trin. ex E. Fourn.) Hack. -- not accepted
  Andropogon saccharoides var. perforatus (Trin. ex E. Fourn.) Hack. ex L.H. Dewey -- not accepted
  Andropogon salzmannii (Trin. ex Steud.) Hack. -- not accepted
  Andropogon salzmannii (Trin. ex Steud.) Hitchc. -- not accepted
  Andropogon sibiricus (Trin.) Steud. -- not accepted
  Andropogon spathaceus Trin. -- not accepted
  Andropogon tener var. neesii (Trin.) Hack. -- not accepted
  Andropogon ternatus ssp. macrothrix (Trin.) Hack. -- not accepted
  Andropogon trachypus Trin. -- not accepted
  Andropogon vimineum Trin. -- not accepted
  Andropogon vimineus Trin. -- not accepted
  Andropogon xanthoblepharis Trin. -- not accepted
  Anemagrostis Trin. -- not accepted
  Anemagrostis interrupta (L.) Trin. -- not accepted
  Anemagrostis spica-venti (L.) Trin. -- not accepted
  Aneurolepidium angustum (Trin.) Nevski -- not accepted
  Anthopogon brevifolius Nutt. ex Trin. -- not accepted
  Apochloa chnoodes (Trin.) Zuloaga & Morrone -- accepted
  Apochloa lorea (Trin.) Zuloaga & Morrone -- accepted
  Apochloa molinioides (Trin.) Zuloaga & Morrone -- accepted
  Arctagrostis arundinacea (Trin.) Beal -- not accepted
  Arctagrostis arundinacea var. arundinacea (Trin.) Beal -- not accepted
  Arctagrostis latifolia ssp. arundinacea (Trin.) Tzvelev -- accepted -- wideleaf polargrass
  Arctagrostis latifolia var. arundinacea (Trin.) Griseb. -- not accepted
  Arctophila fulva (Trin.) Andersson -- accepted -- pendantgrass
  Arctophila fulva ssp. fulva (Trin.) Andersson -- not accepted
  Arctophila fulva var. fulva (Trin.) Andersson -- not accepted
  Arctophilla fulva (Trin.) Andersson -- not accepted
  Aristella (Trin.) Bertol. -- not accepted
  Aristida adscensionis ssp. guineensis (Trin. & Rupr.) Henrard -- not accepted
  Aristida arenaria Trin. -- not accepted
  Aristida berlandieri (Trin. & Rupr.) Hitchc. -- not accepted
  Aristida beyrichiana Trin. & Rupr. -- not accepted -- Beyrich threeawn
  Aristida bromoides Salzm. ex Trin. & Rupr. -- not accepted
  Aristida chapadensis Trin. -- accepted
  Aristida cognata Trin. & Rupr. -- accepted -- spreading threeawn
  Aristida complanata Trin. -- not accepted
  Aristida desmantha Trin. & Rupr. -- accepted -- curly threeawn
  Aristida dispersa Trin. & Rupr. -- not accepted
  Aristida dispersa var. bromoides (Kunth) Trin. & Rupr. -- not accepted
  Aristida dispersa var. coarctata (Kunth) Trin. & Rupr. -- not accepted
  Aristida dispersa var. humilis (Kunth) Trin. & Rupr. -- not accepted
  Aristida dispersa var. nana Trin. & Rupr. -- not accepted
  Aristida dispersa var. nigrescens (J. Presl) Trin. & Rupr. -- not accepted
  Aristida fasciculata var. hookeri (Trin. & Rupr.) L.H. Dewey -- not accepted
  Aristida flaccida Trin. & Rupr. -- accepted
  Aristida gracilis var. virgata (Trin.) Alph. Wood -- not accepted
  Aristida guineensis Trin. & Rupr. -- not accepted
  Aristida humboldtiana Trin. & Rupr. -- not accepted
  Aristida implexa Trin. -- not accepted
  Aristida implexa var. aequa Trin. & Rupr. -- not accepted
  Aristida karwinskiana Trin. & Rupr. -- not accepted
  Aristida lanuginosa Bosc ex Trin. -- not accepted
  Aristida laxa Trin. ex Henrard -- not accepted
  Aristida laxa Willd. ex Trin. & Rupr. -- not accepted
  Aristida laxa var. karwinskiana (Trin. & Rupr.) Henrard -- accepted
  Aristida longifolia Trin. -- accepted
  Aristida longiseta var. hookeri (Trin. & Rupr.) Merr. -- not accepted
  Aristida micropoda Trin. & Rupr. -- not accepted
  Aristida nana (Trin. & Rupr.) Steud. -- not accepted
  Aristida neesiana Trin. & Rupr. -- not accepted
  Aristida pallens var. genuina Trin. & Rupr. -- not accepted
  Aristida pallens var. intermedia Trin. & Rupr. -- not accepted
  Aristida pallens var. murina (Cav.) Trin. & Rupr. -- not accepted
  Aristida pallens var. patula Trin. & Rupr. -- not accepted
  Aristida pallens var. tenuifolia (Nees) Trin. & Rupr. -- not accepted
  Aristida pallens var. tragopogon Trin. & Rupr. -- not accepted
  Aristida perennis Panz. ex Trin. & Rupr. -- not accepted
  Aristida purpurascens var. alabamensis Trin. & Rupr. -- not accepted
  Aristida purpurascens var. virgata (Trin.) Allred -- accepted -- arrowfeather threeawn
  Aristida purpurea var. berlandieri Trin. & Rupr. -- not accepted
  Aristida purpurea var. hookeri Trin. & Rupr. -- not accepted
  Aristida repens Trin. -- accepted
  Aristida riedeliana Trin. & Rupr. -- not accepted
  Aristida riparia Trin. -- accepted
  Aristida sanctae-luciae Trin. -- accepted
  Aristida schiedeana Trin. & Rupr. -- accepted -- single threeawn
  Aristida schiedeana var. schiedeana Trin. & Rupr. -- accepted
  Aristida setifolia var. arenaria (Trin.) Trin. & Rupr. -- not accepted
  Aristida setifolia var. grandiflora Trin. & Rupr. -- not accepted
  Aristida setifolia var. intermedia Trin. & Rupr. -- not accepted
  Aristida spadicea Trin. -- not accepted
  Aristida squarrosa Trin. -- not accepted
  Aristida stricta var. beyrichiana (Trin. & Rupr.) D.B. Ward -- not accepted
  Aristida subspicata Trin. & Rupr. -- accepted
  Aristida tincta Trin. & Rupr. -- not accepted
  Aristida tragopogon (Trin. & Rupr.) Herter -- not accepted
  Aristida virgata Trin. -- not accepted
  Aristida vulgaris var. canariensis (Willd.) Trin. & Rupr. -- not accepted
  Arthraxon ciliare ssp. langsdorffii (Trin.) Hack. -- not accepted
  Arthraxon ciliaris ssp. langsdorffii (Trin.) Hack. -- not accepted
  Arthraxon hispidus ssp. langsdorffii (Trin.) Tzvelev -- not accepted
  Arthraxon hispidus var. langsdorffii (Trin.) Backh. -- not accepted
  Arthraxon langsdorffii (Trin.) Hochst. -- not accepted
  Arthraxon langsdorfianus (Trin.) Hochst. -- not accepted
  Arundarbor capitata (Trin.) Kuntze -- not accepted
  Arundarbor virgata (Trin.) Kuntze -- not accepted
  Arundinaria bambusina (Fisch.) Trin. -- not accepted
  Arundinaria distans Trin. -- not accepted
  Arundinaria parviflora Trin. -- not accepted
  Arundinella crinita Trin. -- not accepted
  Arundinella flammida Trin. -- not accepted
  Arundinella holcoides (Kunth) Trin. -- accepted
  Arundinella martinicensis Trin. -- not accepted
  Arundinella mikanii (Trin. ex Spreng.) Nees -- not accepted
  Arundo hyperborea Trin. ex Steud. -- not accepted
  Atheropogon triaena Trin. ex Spreng. -- not accepted
  Athrolophis (Trin.) Chiov. -- not accepted
  Atropis (Trin.) Rupr. ex Griseb. -- not accepted
  Atropis hauptiana Trin. ex V.I. Krecz. -- not accepted
  Atropis phryganodes (Trin.) Steffen -- not accepted
  Atropis phryganodes (Trin.) V.I. Krecz. -- not accepted
  Avena alpina (L.) Trin. -- not accepted
  Avena cernua (Trin.) Kunth -- not accepted
  Avena scabrivalvis Trin. -- not accepted
  Avena sesquiflora (Trin.) Griseb. -- not accepted
  Avena setacea Muhl. ex Trin. -- not accepted
  Avena symphicarpa Trin. ex Steud. -- not accepted
  Axonopus canescens (Nees ex Trin.) Pilg. -- accepted
  Axonopus canescens var. canescens (Nees ex Trin.) Pilg. -- not accepted
  Axonopus chrysodactylus (Trin.) Kuhlm. -- not accepted
  Axonopus comans (Trin. ex Döll) Henrard -- not accepted
  Axonopus comans (Trin. ex Döll) Kuhlm. -- accepted
  Axonopus dissitiflorus (Trin.) Kuhlm. -- not accepted
  Axonopus dissitiflorus (Trin.) Chase -- not accepted
  Axonopus excavatus (Nees ex Trin.) Henrard -- not accepted
  Axonopus fastigiatus (Nees ex Trin.) Kuhlm. -- accepted
  Axonopus holochrysus (Trin.) Henrard -- not accepted
  Axonopus laxiflorus (Trin.) Chase -- accepted
  Axonopus marginatus (Trin.) Chase -- accepted
  Axonopus marginatus (Trin.) Kuhlm. -- not accepted
  Axonopus pellitus (Nees ex Trin.) Hitchc. & Chase -- accepted
  Axonopus radiatus (Trin.) Kuhlm. -- not accepted
  Axonopus scoparius var. suffultus (Mikan ex Trin.) Herter -- not accepted
  Axonopus suffultus (Mikan ex Trin.) Parodi -- accepted
  Axonopus suffultus (Mikan ex Trin.) Henrard -- not accepted
  Axonopus suffultus var. suffultus (Mikan ex Trin.) Parodi -- not accepted
  Bambusa barbata Trin. -- not accepted
  Bambusa capitata Trin. -- not accepted
  Bambusa virgata Trin. -- not accepted
  Bothriochloa barbinodis var. perforata (Trin. ex E. Fourn.) Gould -- not accepted -- pitted beardgrass
  Bothriochloa caucasica (Trin.) C.E. Hubb. -- not accepted -- Caucasian bluestem
  Bothriochloa perforata (Trin. ex E. Fourn.) Herter -- accepted
  Bouteloua heterostega (Trin.) Griffiths -- not accepted
  Bouteloua triaena (Trin. ex Spreng.) Scribn. -- accepted
  Brachiaria (Trin.) Griseb. -- accepted -- signalgrass
  Brachiaria adspersa (Trin.) Parodi -- not accepted -- Dominican signalgrass
  Brachiaria adspersa (Trin.) S.T. Blake -- not accepted
  Brachiaria distichophylla (Trin.) Stapf -- not accepted -- brachiaria
  Brachiaria megastachya (Nees ex Trin.) Zuloaga & Soderstr. -- not accepted
  Brachiaria subquadripara (Trin.) Hitchc. -- not accepted -- tropical signalgrass
  Brachionidium distichophylla (Trin.) Stapf. -- not accepted
  Briza barbata (Nees) Trin. -- not accepted
  Briza calotheca (Trin.) Hack. -- not accepted
  Briza montevidensis Trin. ex Steud. -- not accepted
  Bromidium anomalum (Trin.) Döll -- accepted
  Bromidium hygrometricum var. anomalum (Trin.) Kuntze -- not accepted
  Bromopsis auletica (Trin. ex Nees) Herter -- not accepted
  Bromus aleutensis Trin. ex Griseb. -- accepted -- Aleutian brome
  Bromus auleticus Trin. ex Nees -- accepted
  Bromus chilensis Trin. -- not accepted
  Bromus cyri Trin. -- not accepted
  Bromus danthoniae Trin. ex C.A. Mey. -- accepted -- oat brome
  Bromus erectus var. auleticus (Trin. ex Nees) Döll -- not accepted
  Bromus lithobius Trin. -- accepted
  Bromus sitchensis Trin. -- accepted -- Alaska brome
  Bromus sitchensis var. aleutensis (Trin. ex Griseb.) Hultén -- not accepted -- Aleutian brome
  Bromus sitchensis var. sitchensis Trin. -- accepted -- Sitka brome
  Calamagrostis aequivalvis (Trin.) Steffen -- not accepted
  Calamagrostis aleutica Trin. -- not accepted
  Calamagrostis deschampsioides Trin. -- accepted -- circumpolar reedgrass
  Calamagrostis langsdorffii (Link) Trin. -- not accepted
  Calamagrostis langsdorffii var. langsdorffii (Link) Trin. -- not accepted
  Calamagrostis langsdorfii (Link) Trin. -- not accepted
  Calamagrostis langsdorfii var. marylandica Trin. -- not accepted
  Calamagrostis michauxii Trin. ex Steud. -- not accepted
  Calamagrostis planifolia (Kunth) Trin. ex Steud. -- accepted
  Calamagrostis poaeoides Trin. ex Steud. -- not accepted
  Calamagrostis recta (Kunth) Trin. ex Steud. -- accepted
  Calamagrostis rigida (Kunth) Trin. ex Steud. -- accepted
  Calamagrostis rupestris Trin. -- accepted
  Calamagrostis sesquiflora (Trin.) Tzvelev -- accepted -- one and a half flower reedgrass
  Calamagrostis sesquiflora (Trin.) Kawano -- not accepted
  Calamagrostis sitkensis Trin. ex Ledeb. -- not accepted
  Calamagrostis tolucensis (Kunth) Trin. ex Steud. -- accepted
  Calamagrostis willdenowii (Trin.) Steud. -- not accepted
  Campuloa chapadensis Trin. ex Döll -- not accepted
  Campulosus aromaticus Trin. ex Steud. -- not accepted
  Campulosus chapadensis Trin. -- not accepted
  Caryochloa Trin. -- not accepted
  Caryochloa brasiliensis Trin. -- not accepted
  Caryochloa montevidensis var. brasiliensis (Trin. & Rupr.) Döll ex Ekman -- not accepted
  Caryochloa stipodes (Trin. & Rupr.) Kuntze -- not accepted
  Catabrosa arundinacea (Trin.) FRIES -- not accepted
  Catabrosa monandra (Trin.) FRIES -- not accepted
  Catapodium aquaticum Trin. ex Willk. & Lange -- not accepted
  Cenchrus agrimonioides Trin. -- accepted -- kamanomano
  Cenchrus agrimonioides var. agrimonioides Trin. -- accepted -- kamanomano
  Cenchrus laevigatus Trin. -- not accepted
  Cenchrus macrourus (Trin.) Morrone -- accepted
  Cenchrus pedicellatus (Trin.) Morrone -- accepted
  Cenchrus pedicellatus ssp. pedicellatus (Trin.) Morrone -- accepted
  Cenchrus peruvianus (Trin.) Morrone -- accepted
  Centrophorum chinense Trin. -- not accepted
  Chaetaria squarrosa (Trin.) Schult. -- not accepted
  Chaetochloa onurus (Willd. ex Trin.) Scribn. & Merr. -- not accepted
  Chaetochloa rariflora (J.C. Mikan ex Trin.) Hitchc. & Chase -- not accepted
  Chaetotropis exasperata (Trin.) Björkman -- not accepted
  Chilochloa dentata (L. f.) Trin. -- not accepted
  Chloris acuminata Trin. -- not accepted
  Chloris caudata Trin. ex Bunge -- not accepted
  Chloris confertifolia Trin. -- not accepted
  Chloris cynodon Trin. -- not accepted
  Chloris distichophylla var. acuminata (Trin.) Hack. -- not accepted
  Chloris equitans Trin. -- not accepted
  Chloris inermis Trin. -- not accepted
  Chloris maritima (Kunth) Trin. -- not accepted
  Chloris penicillata Jan. ex Trin. -- not accepted
  Chloris pycnothrix Trin. -- accepted
  Chondrosum polystachyum Trin. ex E. Fourn. -- not accepted
  Chrysopogon Trin. -- accepted -- false beardgrass
  Chrysopogon aciculatus (Retz.) Trin. -- accepted -- golden beardgrass, golden false beardgrass, inifuk, Mackie's pest, matapekepeke, pilipiliula, seed grass
  Chrysopogon montanus Trin. -- not accepted
  Chrysopogon stipoides Trin. -- not accepted
  Chrysopogon subulatus (J. Presl) Trin. ex Steud. -- not accepted
  Chusquea capituliflora Trin. -- accepted
  Chusquea capituliflora var. capituliflora Trin. -- accepted
  Cinna arundinacea var. pendula (Trin.) A. Gray -- not accepted
  Cinna crinita (L. f.) Trin. -- not accepted
  Cinna pendula Trin. -- not accepted
  Cleistogenes squarrosa (Trin.) Keng -- not accepted
  Coelorachis loricata (Trin.) Nash -- not accepted
  Colanthelia distans (Trin.) McClure -- accepted
  Coleataenia caricoides (Nees ex Trin.) Soreng -- accepted
  Coleataenia tenera (Beyr. ex Trin.) Soreng -- accepted
  Colobanthus (Trin.) Spach -- not accepted
  Colpodium Trin. -- not accepted
  Colpodium aquaticum (L.) Trin. -- not accepted
  Colpodium arundinaceum (Trin.) Hook. -- not accepted
  Colpodium compressum Trin. -- not accepted
  Colpodium fulvum (Trin.) Griseb. -- not accepted
  Colpodium junceum (P. Beauv.) Trin. -- not accepted
  Colpodium monandrum Trin. -- not accepted
  Cryptochloa capillata (Trin.) Soderstr. -- accepted
  Ctenium chapadense (Trin.) Döll -- accepted
  Curtopogon gracilis Nees ex Trin. & Rupr. -- not accepted
  Cymbopogon pachnodes (Trin.) Will.Watson -- not accepted
  Cynodon tenuis Trin. ex Spreng. -- not accepted
  Dactyloctenium distachyum Trin. -- not accepted
  Danthonia coronata Trin. -- not accepted
  Danthonia villosa (Pers.) Trin. -- not accepted
  Deschampsia aenea Trin. ex Griseb. -- not accepted
  Deschampsia berteroana (Kunth) Trin. -- accepted
  Deschampsia berteroana var. berteroana (Kunth) Trin. -- not accepted
  Deschampsia bottnica (Wahlenb.) Trin. -- not accepted
  Deschampsia bottonia (Wahlenb.) Trin. -- not accepted
  Deschampsia danthonioides (Trin.) Munro -- accepted -- annual hairgrass
  Deschampsia flexuosa (L.) Trin. -- not accepted -- wavy hairgrass
  Deschampsia flexuosa var. flexuosa (L.) Trin. -- not accepted -- wavy hairgrass
  Deschampsia pulchella (Willd.) Trin. -- not accepted
  Deyeuxia aleutica (Trin.) Munro ex Hook. -- not accepted
  Deyeuxia anomala (Trin.) Benth. & Hook. f. -- not accepted
  Deyeuxia deschampsioides (Trin.) Scribn. -- not accepted
  Deyeuxia rupestris (Trin.) Rúgolo -- not accepted
  Diachyrium rigens (Trin.) Mez -- not accepted
  Dichanthelium chamaelonche (Trin.) Freckmann & Lelong -- not accepted
  Dichanthelium dichotomum var. unciphyllum (Trin.) Davidse -- accepted
  Dichanthelium ensifolium var. unciphyllum (Trin.) B.F. Hansen & Wunderlin -- not accepted
  Dichanthelium hebotes (Trin.) Zuloaga -- accepted
  Dichanthelium leucoblepharis (Trin.) Gould & C.A. Clark -- not accepted
  Dichanthelium leucoblepharis var. leucoblepharis (Trin.) Gould & C.A. Clark -- not accepted
  Dichanthelium sciurotis (Trin.) Davidse -- accepted
  Dichanthelium stigmosum (Trin.) Zuloaga -- accepted
  Dichanthelium strigosum ssp. leucoblepharis (Trin.) Freckmann & Lelong -- not accepted
  Dichanthelium strigosum var. leucoblepharis (Trin.) Freckmann -- accepted -- roughhair rosette grass
  Dichanthium caucasicum (Trin.) S.K. Jain & Deshp. -- not accepted
  Dichelachne vulgaris Trin. & Rupr. -- not accepted
  Digitaria connivens (Trin.) Henrard -- accepted
  Digitaria cuiabensis (Trin.) Parodi -- not accepted
  Digitaria cuyabensis (Trin.) Parodi -- accepted
  Digitaria lanuginosa var. cuyabensis (Trin.) Henrard -- not accepted
  Digitaria leucites (Trin.) Henrard -- accepted
  Digitaria leucites var. leucites (Trin.) Henrard -- not accepted
  Digitaria phaeothrix (Trin.) Parodi -- accepted
  Digitaria phaeothrix var. phaeothrix (Trin.) Parodi -- accepted
  Digitaria pruriens (Fisch. ex Trin.) Büse -- not accepted
  Digitaria sanguinalis var. pruriens (Fisch. ex Trin.) Prain -- not accepted
  Digraphis Trin. -- not accepted
  Digraphis arundinacea (L.) Trin. -- not accepted
  Dimeria ornithopoda Trin. -- accepted
  Dissanthelium Trin. -- accepted -- Catalina grass
  Dissanthelium supinum Trin. -- not accepted
  Donax borealis Trin. -- not accepted
  Donax kotzebuensis Trin. ex Rupr. -- not accepted
  Echinochloa crus-galli f. longiseta (Trin.) Farw. -- not accepted
  Echinochloa crus-galli f. sabulonum (Trin.) Farw. -- not accepted
  Echinochloa crus-galli var. longiseta (Trin.) Hara -- not accepted
  Echinochloa polystachya var. spectabilis (Nees ex Trin.) Mart. Crov. -- accepted
  Echinochloa spectabilis (Nees ex Trin.) Link -- not accepted -- showy cockspur
  Echinolaena brachystachya (Trin.) Kunth -- not accepted
  Echinolaena procurrens (Nees ex Trin.) Kunth -- not accepted
  Eleocharis dulcis (Burm. f.) Trin. ex Hensch. -- accepted -- Chinese water chestnut, Chinese waterchestnut
  Eleusine indica var. brachystachya Trin. -- not accepted
  Elionurus adustus (Trin.) Ekman -- not accepted
  Elionurus adustus var. adustus (Trin.) Ekman -- not accepted
  Elionurus bilinguis (Trin.) Hack. -- accepted
  Elionurus candidus (Trin.) Hack. -- not accepted
  Elionurus candidus var. candidus (Trin.) Hack. -- not accepted
  Elionurus latiflorus var. adustus (Trin.) Hack. -- not accepted
  Elionurus tripsacoides subvar. bilinguis (Trin.) Roberty -- not accepted
  Elymandra lithophila (Trin.) Clayton -- accepted
  Elymus andinus Poepp. ex Trin. -- not accepted
  Elymus angustus Trin. -- not accepted
  Elymus arenarius ssp. mollis (Trin.) Hultén -- not accepted
  Elymus arenarius var. mollis (Trin.) Koidz. -- not accepted
  Elymus ciliaris (Trin.) Tzvelev -- accepted -- wildrye
  Elymus dasystachys Trin. -- not accepted
  Elymus mollis Trin. -- not accepted
  Elymus mollis f. mollis Trin. -- not accepted
  Elymus mollis var. mollis Trin. -- not accepted
  Elymus rigescens Trin. -- not accepted
  Elyonurus adustus (Trin.) Ekman -- not accepted
  Elyonurus candidus (Trin.) Hack. -- not accepted
  Elyonurus candidus var. candidus (Trin.) Hack. -- not accepted
  Epicampes gracilis Trin. -- not accepted
  Epicampes rigens (Trin.) Phil. -- not accepted
  Eragrostis acicularis Trin. -- not accepted
  Eragrostis atrovirens (Desf.) Trin. ex Steud. -- accepted -- thalia lovegrass
  Eragrostis aturensis (Kunth) Trin. ex Steud. -- not accepted
  Eragrostis barbata Trin. -- not accepted
  Eragrostis calotheca Trin. -- not accepted
  Eragrostis campestris Trin. -- not accepted -- field lovegrass
  Eragrostis conferta (Elliott) Trin. -- not accepted
  Eragrostis delicatula Trin. -- not accepted
  Eragrostis firma Trin. -- not accepted
  Eragrostis gigantea Trin. -- not accepted
  Eragrostis glareosa Trin. -- not accepted
  Eragrostis glutinosa (Sw.) Trin. -- accepted -- sticky lovegrass
  Eragrostis hapalantha Trin. -- not accepted
  Eragrostis japonica (Thunb.) Trin. -- accepted -- pond lovegrass
  Eragrostis leptantha Trin. -- not accepted
  Eragrostis neesii Trin. -- accepted
  Eragrostis neesii var. neesii Trin. -- accepted
  Eragrostis parviflora (R. Br.) Trin. -- accepted -- smallflower lovegrass
  Eragrostis pastoensis (Kunth) Trin. -- accepted
  Eragrostis pauciflora Trin. ex E. Fourn. -- not accepted
  Eragrostis pauciflora Trin. -- not accepted
  Eragrostis peruviana (Jacq.) Trin. -- accepted
  Eragrostis pilosa var. delicatula (Trin.) Hack. -- not accepted
  Eragrostis psammodes Trin. -- not accepted
  Eragrostis quitensis Trin. -- not accepted
  Eragrostis sclerophylla Trin. -- accepted
  Eragrostis seminuda Trin. -- accepted
  Eragrostis tricuspis Trin. -- not accepted
  Eragrostis viscosa (Retz.) Trin. -- accepted
  Eremitis parviflora (Trin.) C.E. Calderón & Soderstr. -- accepted
  Eremocaulon capitatum (Trin.) Londońo -- accepted
  Eremopoa altaica (Trin.) Roshev. -- not accepted -- Siberian grass
  Eremopoa persica (Trin.) Roshev. -- not accepted
  Erianthus asper var. brasilianus (Trin.) Hack. -- not accepted
  Erianthus brasilianus (Trin.) Andersson -- not accepted
  Erianthus jamaicensis (Trin.) Andersson -- not accepted
  Erianthus japonicus (Trin.) P. Beauv. -- not accepted
  Erianthus ravennae var. jamaicensis (Trin.) Hack. -- not accepted
  Eriochloa grandiflora (Trin.) Benth. -- accepted
  Eriochloa tridentata (Trin.) Kuhlm. -- accepted
  Eulalia japonica Trin. -- not accepted
  Eulalia viminea (Trin.) Kuntze -- not accepted
  Euphorbia gerardiana var. arenivaga Martrin-Donos -- not accepted
  Euphorbia seguieriana var. arenivaga (Martrin-Donos) Oudejans -- not accepted
  Eustachys confertifolia (Trin.) Kunth -- not accepted
  Eutriana Trin. -- not accepted
  Eutriana aristidoides (Kunth) Trin. -- not accepted
  Eutriana bromoides (Kunth) Trin. -- not accepted
  Eutriana bromoides (Lag.) Trin. -- not accepted
  Eutriana cristata Trin. -- not accepted
  Eutriana curtipendula (Michx.) Trin. -- not accepted
  Eutriana gracilis (Kunth) Trin. -- not accepted
  Eutriana heterostega Trin. -- not accepted
  Eutriana hirta (Kunth) Trin. -- not accepted
  Eutriana humilis (P. Beauv. ex Kunth) Trin. -- not accepted
  Eutriana juncea (Desv. ex P. Beauv.) Trin. -- not accepted
  Eutriana ledebourii Trin. -- not accepted
  Eutriana polyodon Trin. -- not accepted
  Eutriana repens (Kunth) Trin. -- not accepted
  Eutriana tenuis (P. Beauv. ex Kunth) Trin. -- not accepted
  Eutriana triaena Trin. -- not accepted
  Festuca acerosa Trin. ex A. Gray -- not accepted
  Festuca altaica Trin. -- accepted -- Altai fescue, rough fescue
  Festuca altaica f. altaica Trin. -- not accepted
  Festuca altaica var. altaica Trin. -- accepted
  Festuca antucensis (Trin.) Steud. -- not accepted
  Festuca borealis (Trin.) Mert. & Koch ex Röhl. -- not accepted
  Festuca leptothrix Trin. ex Steud. -- not accepted
  Festuca leptothrix Trin. ex Döll -- not accepted
  Festuca persica (Trin.) K. Koch -- not accepted
  Festuca quadridens Bosc ex Trin. -- not accepted
  Festuca subulata Trin. -- accepted -- bearded fescue, nodding fescue
  Festuca subulata var. subulata Trin. -- accepted
  Gaudinia tenuis (Moench) Trin. -- not accepted
  Glyceria canadensis (Michx.) Trin. -- accepted -- rattlesnake mannagrass
  Glyceria canadensis var. canadensis (Michx.) Trin. -- accepted
  Glyceria elongata (Torr.) Trin. -- not accepted
  Glyceria fulva (Trin.) FRIES -- not accepted
  Glyceria glumaris (Trin.) Griseb. -- not accepted
  Glyceria nervata (Willd.) Trin. -- not accepted
  Glyceria obtusa (Muhl.) Trin. -- accepted -- Atlantic mannagrass
  Glyceria pallida (Torr.) Trin. -- not accepted
  Glyceria pallida var. pallida (Torr.) Trin. -- not accepted
  Glyceria phryganoides (Trin.) Fr. -- not accepted
  Glyceria spectabilis var. flaccida Trin. & Bong. ex A. Gray -- not accepted
  Goldbachia Trin. -- not accepted
  Goldbachia mikanii Trin. ex Spreng. -- not accepted
  Graphephorum fulvum (Trin.) A. Gray -- not accepted
  Guadua capitata (Trin.) Munro -- not accepted
  Guadua virgata (Trin.) Rupr. -- accepted
  Gymnachne koelerioides (Trin.) Parodi -- accepted
  Gymnopogon brevifolius Trin. -- accepted -- shortleaf skeletongrass
  Gymnopogon scoparius Trin. -- not accepted
  Gymnothrix peruviana (Trin.) Döll -- not accepted
  Gymnotrix peruviana (Trin.) Döll -- not accepted
  Gymnotrix polystachya (L.) Sw. ex Trin. -- not accepted
  Helictotrichon scabrivalve (Trin.) G. Tucker -- not accepted
  Helictotrichon scabrivalvis (Trin.) Renvoize -- not accepted
  Helopus Trin. -- not accepted
  Helopus brachystachys Trin. -- not accepted
  Helopus grandiflorus Trin. -- not accepted
  Helopus kunthii (G. Mey.) Trin. ex Steud. -- not accepted
  Helopus laevis Trin. -- not accepted
  Helopus pilosus Trin. -- not accepted
  Helopus polystachys (Kunth) Trin. ex Steud. -- not accepted
  Helopus tridentatus (Trin.) Steud. -- not accepted
  Hemarthria capensis Trin. -- not accepted
  Hesperostipa comata (Trin. & Rupr.) Barkworth -- accepted -- Hesperostipa, needle and thread, needleandthread
  Hesperostipa comata ssp. comata (Trin. & Rupr.) Barkworth -- accepted -- needle and thread, needleandthread
  Hesperostipa spartea (Trin.) Barkworth -- accepted -- porcupinegrass
  Heteropogon acuminatus Trin. -- not accepted
  Hierochloe odorata ssp. dahurica (Trin.) Printz -- not accepted -- vanillagrass
  Holcus saccharoides var. perforatus (Trin. ex E. Fourn.) Hack. -- not accepted
  Homalocenchrus ligularis (Trin.) Kuntze -- not accepted
  Homoplitis Trin. -- not accepted
  Homoplitis crinita (Thunb.) Trin. -- not accepted
  Hordeum andinum Trin. -- not accepted
  Hymenachne fluviatilis Nees ex Trin. -- not accepted
  Hymenachne palustris (Trin.) Chase -- not accepted
  Hyparrhenia lithophila (Trin.) Pilg. -- not accepted
  Ichnanthus almadensis (Nees ex Trin.) Kunth -- not accepted
  Ichnanthus almadensis var. almadensis (Nees ex Trin.) Kunth -- not accepted
  Ichnanthus bambusiflorus (Trin.) Döll -- accepted
  Ichnanthus calvescens (Nees ex Trin.) Döll -- accepted
  Ichnanthus calvescens var. calvescens (Nees ex Trin.) Döll -- accepted
  Ichnanthus cynotis (Trin.) Döll -- not accepted
  Ichnanthus inconstans (Trin. ex Nees) Döll -- accepted
  Ichnanthus inconstans var. dumetorum (Trin.) Döll -- not accepted
  Ichnanthus inconstans var. inconstans (Trin. ex Nees) Döll -- not accepted
  Ichnanthus inconstans var. montanus (Trin.) Döll -- not accepted
  Ichnanthus lagotis (Trin.) Swallen -- not accepted
  Ichnanthus montanus (Trin.) Mez -- not accepted
  Ichnanthus planotis (Trin.) Döll -- not accepted
  Ichnanthus planotis var. planotis (Trin.) Döll -- not accepted
  Ichnanthus procurrens (Nees ex Trin.) Swallen -- accepted
  Ichnanthus procurrens (Nees ex Trin.) Stieber -- not accepted
  Ichnanthus procurrens var. procurrens (Nees ex Trin.) Swallen -- accepted
  Ichnanthus riedelii (Trin.) Döll -- accepted
  Imperata brasiliensis Trin. -- accepted -- Brazilian satintail
  Imperata caudata (G. Mey.) Trin. -- not accepted
  Isachne panicea Trin. -- not accepted
  Isachne rigens (Sw.) Trin. -- accepted
  Isachne salzmannii (Trin. ex Steud.) Renvoize -- accepted
  Ischaemum angustifolium (Trin.) Hack. -- not accepted
  Ischaemum byrone (Trin.) Hitchc. -- accepted -- Hilo ischaemum, Hilo murainagrass
  Ischaemum chordatum (Trin.) Hack. ex Warb. -- accepted -- ischaemum
  Ischaemum crinitum (Thunb.) Trin. -- not accepted
  Jarava caudata (Trin.) Peńailillo -- accepted
  Jarava speciosa (Trin. & Rupr.) Peńailillo -- not accepted
  Kengia squarrosa (Trin.) Packer -- accepted
  Knappia verna Trin. -- not accepted
  Knappia vernalis Trin. -- not accepted
  Koeleria canescens Torr. ex Trin. -- not accepted
  Koeleria caudulata (Trin.) Griseb. -- not accepted
  Koeleria lobata Trin. ex Steud. -- not accepted
  Koeleria obtusata Trin. ex Steud. -- not accepted
  Lachnagrostis Trin. -- accepted
  Lachnagrostis filiformis (G. Forst.) Trin. -- accepted
  Lachnagrostis retrofracta (Willd.) Trin. -- not accepted
  Lachnagrostis willdenowii Trin. -- not accepted
  Lasiagrostis gigantea (Link) Trin. & Rupr. -- not accepted
  Lasiagrostis tenacissima (L.) Trin. & Rupr. -- not accepted
  Lasiochloa pectinata Trin. ex Pritz. -- not accepted
  Leersia aspera Nees ex Trin. -- not accepted
  Leersia asperrima Willd. ex Trin. -- not accepted
  Leersia elongata Willd. ex Trin. -- not accepted
  Leersia glaberrima Trin. -- not accepted
  Leersia gracilis Willd. ex Trin. -- not accepted
  Leersia ligularis Trin. -- accepted
  Leersia ligularis var. ligularis Trin. -- accepted
  Leersia mauritanica Salzm. ex Trin. -- not accepted
  Lepeocercis Trin. -- not accepted
  Lepeocercis serrata (Retz.) Trin. -- not accepted
  Lepideilema Trin. -- not accepted
  Lepideilema lancifolium Trin. -- not accepted
  Leptochloa domingensis (Jacq.) Trin. -- not accepted
  Leptochloa obtusiflora Trin. ex Steud. -- not accepted
  Leptochloa subdigitata Trin. ex Steud. -- not accepted
  Lepturus cylindricus (Willd.) Trin. -- not accepted
  Lepturus cylindricus var. cylindricus (Willd.) Trin. -- not accepted
  Lepturus fasciculatus (Lam.) Trin. -- not accepted
  Lepturus filiformis (Roth) Trin. -- accepted -- thread thintail
  Lepturus incurvatus (L.) Trin. -- not accepted
  Leymus angustus (Trin.) Pilg. -- accepted -- Altai wildrye
  Leymus arenarius ssp. mollis (Trin.) Tzvelev -- not accepted
  Leymus mollis (Trin.) H. Hara -- not accepted
  Leymus mollis (Trin.) Pilg. -- accepted -- American dunegrass, American ryegrass
  Leymus mollis ssp. mollis (Trin.) Pilg. -- accepted -- American dunegrass
  Limnas arkansana (Nutt.) Trin. ex Steud. -- not accepted
  Limnas pilosa (Trin.) Steud. -- not accepted
  Limnodea arkansana var. pilosa (Trin.) Scribn. -- not accepted
  Lodicularia capensis (Trin.) Nees -- not accepted
  Loudetia flammida (Trin.) C.E. Hubb. -- accepted
  Lucaea langsdorffii (Trin.) Steud. -- not accepted
  Luziola brasiliensis (Trin.) Pilg. -- accepted
  Luziola brasiliensis (Trin.) Swallen -- not accepted
  Luziola caroliniana Trin. ex Steud. -- not accepted
  Manisuris loricata (Trin.) Kuntze -- not accepted
  Melica imperfecta Trin. -- accepted -- smallflower melicgrass
  Melica imperfecta var. imperfecta Trin. -- not accepted
  Melocanna Trin. -- accepted
  Melocanna bambusoides Trin. -- not accepted
  Mesosetum ansatum (Trin.) Kuhlm. -- accepted
  Mesosetum exaratum (Trin.) Kuhlm. -- not accepted
  Mesosetum exaratum (Trin.) Chase -- accepted
  Mesosetum ferrugineum (Trin.) Chase -- accepted
  Mesosetum sclerochloa (Trin.) Hitchc. -- accepted
  Mesosetum sclerochloa (Trin.) Kuhlm. -- not accepted
  Microstegium vimineum (Trin.) A. Camus -- accepted -- Japanese stiltgrass, Nepalese browntop
  Miscanthus japonicus (Trin.) Andersson -- not accepted
  Miscanthus nepalensis (Trin.) Hack. -- accepted -- Nepalese silvergrass
  Muhlenbergia adspersa Trin. -- not accepted
  Muhlenbergia affinis Trin. -- not accepted
  Muhlenbergia alpestris (Kunth) Trin. -- not accepted
  Muhlenbergia arachnoidea Trin. ex Kunth -- not accepted
  Muhlenbergia aspera Trin. ex Kunth -- not accepted
  Muhlenbergia aspericaulis Nees ex Trin. -- not accepted
  Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi -- accepted -- alkali muhly, scratchgrass
  Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Matthei -- not accepted
  Muhlenbergia berlandieri Trin. -- not accepted
  Muhlenbergia brachyelytrum Trin. -- not accepted
  Muhlenbergia brevifolia var. richardsonis (Trin.) M.E. Jones -- not accepted
  Muhlenbergia calycina (Trin.) Trin. -- not accepted
  Muhlenbergia capillaris (Lam.) Trin. -- accepted -- hairawn muhly
  Muhlenbergia capillaris var. capillaris (Lam.) Trin. -- accepted -- hairawn muhly
  Muhlenbergia ciliata (Kunth) Trin. -- accepted
  Muhlenbergia cinna (Lam.) Trin. -- not accepted
  Muhlenbergia clandestina (Biehler) Trin. -- not accepted
  Muhlenbergia composita Trin. ex Kunth -- not accepted
  Muhlenbergia crinita (L. f.) Trin. -- not accepted
  Muhlenbergia debilis (Kunth) Trin. -- not accepted
  Muhlenbergia diversiglumis Trin. -- accepted
  Muhlenbergia elegans (Kunth) Trin. -- not accepted
  Muhlenbergia expansa (Poir.) Trin. -- accepted
  Muhlenbergia fasciculata Trin. -- not accepted
  Muhlenbergia foliosa (hort. ex Roem. & Schult.) Trin. -- not accepted
  Muhlenbergia glabrata (Kunth) Trin. -- not accepted
  Muhlenbergia glomerata (Willd.) Trin. -- accepted -- bristly muhly, marsh muhly, spiked muhly
  Muhlenbergia glomerata var. glomerata (Willd.) Trin. -- not accepted
  Muhlenbergia gracilis (Kunth) Trin. -- not accepted
  Muhlenbergia implicata (Kunth) Trin. -- accepted
  Muhlenbergia lateriflora Trin. ex Kunth -- not accepted
  Muhlenbergia mexicana (L.) Trin. -- accepted -- Mexican muhly
  Muhlenbergia mexicana f. mexicana (L.) Trin. -- not accepted
  Muhlenbergia mexicana var. mexicana (L.) Trin. -- accepted -- Mexican muhly
  Muhlenbergia microsperma (DC.) Trin. -- not accepted -- littleseed muhly
  Muhlenbergia mucronata (Kunth) Trin. -- accepted
  Muhlenbergia pendula Trin. -- not accepted
  Muhlenbergia plumbea (Trin.) Hitchc. -- accepted
  Muhlenbergia quadridentata (Kunth) Trin. -- accepted
  Muhlenbergia richardsonis (Trin.) Rydb. -- accepted -- mat muhly, muhlenbergie de Richardson, soft-leaf muhly
  Muhlenbergia rigida (Kunth) Trin. -- not accepted -- Metcalf muhly, purple muhly
  Muhlenbergia scabra (Kunth) Trin. & Rupr. -- not accepted
  Muhlenbergia sciurea (R. Br.) Trin. -- not accepted
  Muhlenbergia sciurea (R. Br.) Trin. ex Kunth -- not accepted
  Muhlenbergia setosa (Biehler) Trin. ex B.D. Jacks. -- not accepted
  Muhlenbergia setosa (Kunth) Trin. -- not accepted
  Muhlenbergia sobolifera (Muhl. ex Willd.) Trin. -- accepted -- rock muhly
  Muhlenbergia sobolifera f. sobolifera (Muhl. ex Willd.) Trin. -- not accepted
  Muhlenbergia sobolifera ssp. sobolifera (Muhl. ex Willd.) Trin. -- not accepted
  Muhlenbergia sobolifera var. sobolifera (Muhl. ex Willd.) Trin. -- not accepted
  Muhlenbergia spica-venti (L.) Trin. -- not accepted
  Muhlenbergia spiciformis Trin. -- accepted
  Muhlenbergia sprengelii Trin. -- not accepted
  Muhlenbergia squarrosa (Trin.) Rydb. -- not accepted
  Muhlenbergia stipoides (Kunth) Trin. -- not accepted
  Muhlenbergia tenella (Kunth) Trin. -- not accepted
  Muhlenbergia tenuifolia (Kunth) Trin. -- not accepted -- mesa muhly, slimflower muhly
  Muhlenbergia tenuis (Kunth) Trin. & Rupr. -- not accepted
  Muhlenbergia virescens (Kunth) Trin. -- accepted
  Muhlenbergia virescens ssp. virescens (Kunth) Trin. -- not accepted
  Muhlenbergia willdenowii Trin. -- not accepted
  Nassella (Trin.) E. Desv. -- accepted -- tussockgrass
  Nassella chilensis (Trin.) E. Desv. -- accepted -- Chilean tussockgrass
  Nassella chilensis var. chilensis (Trin.) E. Desv. -- not accepted
  Nassella lachnophylla (Trin.) Barkworth -- accepted
  Nassella leucotricha (Trin. & Rupr.) R.W. Pohl -- accepted -- Texas tussockgrass, Texas wintergrass
  Nassella major (Trin. & Rupr.) E. Desv. -- not accepted
  Nassella megapotamia (Spreng. ex Trin.) Barkworth -- accepted
  Nassella meyeniana (Trin. & Rupr.) Parodi -- accepted
  Nassella neesiana (Trin. & Rupr.) Barkworth -- accepted -- Uruguayan tussockgrass
  Nassella poeppigiana (Trin. & Rupr.) Barkworth -- accepted
  Nassella pubiflora (Trin. & Rupr.) E. Desv. -- accepted
  Nassella pubiflora var. pubiflora (Trin. & Rupr.) E. Desv. -- accepted
  Nassella sellowiana (Nees ex Trin. & Rupr.) Peńailillo -- accepted
  Nassella tenuissima (Trin.) Barkworth -- accepted -- finestem stipa, finestem tussockgrass, tussockgrass
  Nassella viridula (Trin.) Barkworth -- accepted -- green needlegrass
  Nastus barbatus (Trin.) Rupr. -- not accepted
  Nephelochloa altaica (Trin.) Griseb. -- not accepted
  Nephelochloa persica (Trin.) Griseb. -- not accepted
  Nicoraepoa andina (Trin.) Soreng & L.J. Gillespie -- accepted
  Ocellochloa brachystachya (Trin.) Zuloaga & Morrone -- accepted
  Ocellochloa latissima (Mikan ex Trin.) Zuloaga & Morrone -- accepted
  Ochellochloa brachystachya (Trin.) Zuloaga & Morrone -- not accepted
  Ochellochloa latissima (Mikan ex Trin.) Zuloaga & Morrone -- not accepted
  Olyra capillata Trin. -- not accepted
  Olyra capillata var. capillata Trin. -- not accepted
  Olyra caudata Trin. -- accepted
  Olyra fasciculata Trin. -- accepted
  Olyra filiformis Trin. -- accepted
  Olyra hirsuta Trin. -- not accepted
  Olyra polypodioides Trin. -- not accepted
  Olyra ramosissima Trin. -- not accepted
  Olyra semiovata Trin. -- not accepted
  Olyra semiovata var. semiovata Trin. -- not accepted
  Oplismenus discolor (Trin. ex Nees) Kunth -- not accepted
  Oplismenus spectabilis (Nees ex Trin.) Kunth -- not accepted
  Origanum vulgare ssp. viridulum (Martrin-Donos) Nyman -- accepted
  Orthopogon burmannii (Retz.) Trin. -- not accepted
  Orthopogon remotus Trin. -- not accepted
  Oryzopsis micrantha (Trin. & Rupr.) Thurb. -- not accepted
  Oryzopsis montevidensis var. brasiliensis (Trin. & Rupr.) Speg. -- not accepted
  Oryzopsis pubiflora (Trin. & Rupr.) Scribn. -- not accepted
  Oryzopsis stipoides (Trin. & Rupr.) Speg. -- not accepted
  Otachyrium pterygodium (Trin.) Pilg. -- accepted
  Panicum acariferum Trin. -- not accepted
  Panicum acuminatum var. unciphyllum (Trin.) Lelong -- not accepted
  Panicum adspersum Trin. -- not accepted
  Panicum adustum var. phaeothrix (Trin.) Hack. -- not accepted
  Panicum agrioides Trin. ex Döll -- not accepted
  Panicum alabamense Trin. ex Steud. -- not accepted
  Panicum almadense Nees ex Trin. -- not accepted
  Panicum ammophilum Trin. ex Nees -- not accepted
  Panicum ansatum Trin. -- not accepted
  Panicum aquaticum var. chloroticum (Nees ex Trin.) R.C. Foster -- not accepted
  Panicum arborescens Sieber ex Trin. -- not accepted
  Panicum arnacites Trin. -- not accepted
  Panicum arundinariae Trin. ex E. Fourn. -- accepted
  Panicum arundinariae Trin. ex Steud. -- not accepted
  Panicum aureum (P. Beauv.) Trin. -- not accepted
  Panicum auricomum Nees ex Trin. -- accepted
  Panicum balanites Trin. -- not accepted
  Panicum bambusiflorum Trin. -- not accepted
  Panicum barbinode Trin. -- not accepted
  Panicum beckmanniiforme J.C. Mikan ex Trin. -- not accepted
  Panicum brachyclados C. Rchb. ex Trin. -- not accepted
  Panicum brachystachyum Trin. -- not accepted
  Panicum calvescens Nees ex Trin. -- not accepted
  Panicum campestre Nees ex Trin. -- accepted
  Panicum candidum Nees ex Trin. -- not accepted
  Panicum caricoides Nees ex Trin. -- not accepted
  Panicum caucasicum Trin. -- not accepted
  Panicum chamaelonche Trin. -- not accepted
  Panicum chamaelonche var. chamaelonche Trin. -- not accepted
  Panicum chloroticum Nees ex Trin. -- not accepted
  Panicum chloroticum var. agreste Nees ex Trin. -- not accepted
  Panicum chloroticum var. sylvestre Nees ex Trin. -- not accepted
  Panicum chnoodes Trin. -- not accepted
  Panicum chrysodactylon Trin. -- not accepted
  Panicum chrysostachyum (Schrad.) Trin. -- not accepted
  Panicum coarctatum Steven ex Trin. -- not accepted
  Panicum connivens Trin. -- not accepted
  Panicum contractum Trin. ex Steud. -- not accepted
  Panicum crus-galli var. longisetum Trin. -- not accepted
  Panicum crus-galli var. sabulicola (Nees) Trin. -- not accepted
  Panicum crusgalli var. sabulicola Trin. -- not accepted
  Panicum ctenodes Trin. -- not accepted
  Panicum ctenodes var. majus Trin. -- not accepted
  Panicum cujabense Trin. ex Steud. -- not accepted
  Panicum cultratum Trin. -- not accepted
  Panicum cuyabense Trin. -- not accepted
  Panicum cyanescens Nees ex Trin. -- accepted
  Panicum cyanescens var. contractum Trin. ex Döll -- not accepted
  Panicum cyanescens var. patens Trin. ex Döll -- not accepted
  Panicum cyanescens var. pubescens Trin. ex Döll -- not accepted
  Panicum cynotis Trin. -- not accepted
  Panicum decipiens Nees ex Trin. -- not accepted
  Panicum demissum Trin. -- not accepted
  Panicum dichotomum var. unciphyllum (Trin.) Wipff & S.D. Jones -- not accepted
  Panicum discolor Trin. ex Nees -- not accepted
  Panicum dispersum Trin. -- not accepted
  Panicum distans Trin. -- not accepted
  Panicum elephantipes Nees ex Trin. -- accepted -- elephant panicgrass
  Panicum elliotii Trin. ex Nees -- not accepted
  Panicum enslinii Trin. -- not accepted
  Panicum exaratum Trin. -- not accepted
  Panicum expansum Trin. ex Steud. -- not accepted
  Panicum ferrugineum Trin. -- not accepted
  Panicum firmifolium Trin. ex Nees -- not accepted
  Panicum flavidum var. jubiflorum (Trin.) Domin -- not accepted
  Panicum floridanum Trin. -- not accepted
  Panicum glandulosum Nees ex Trin. -- not accepted
  Panicum glaucum var. brasiliense Trin. ex Nees -- not accepted
  Panicum grandiflorum Trin. ex Nees -- not accepted
  Panicum hebotes Trin. -- not accepted
  Panicum holochrysum Trin. -- not accepted
  Panicum hydrophilum Trin. ex Nees -- not accepted
  Panicum immersum (Nees) Trin. -- not accepted
  Panicum inconstans Trin. ex Nees -- not accepted
  Panicum inconstans var. dumetorum Trin. -- not accepted
  Panicum inconstans var. inconstans Trin. ex Nees -- not accepted
  Panicum inconstans var. montanum Trin. -- not accepted
  Panicum indicum var. vilfodes (Trin.) Kuntze -- not accepted
  Panicum jejunum Trin. -- not accepted
  Panicum jubiflorum Trin. -- not accepted
  Panicum junceum Trin. -- not accepted
  Panicum lagotis Trin. -- not accepted
  Panicum lancearium Trin. -- not accepted
  Panicum lancearium var. lancearium Trin. -- not accepted
  Panicum lasianthum Trin. -- not accepted
  Panicum latissimum Mikan ex Trin. -- not accepted
  Panicum leandri Trin. -- not accepted
  Panicum leucites Trin. -- not accepted
  Panicum leucoblepharis Trin. -- not accepted
  Panicum ligulare Nees ex Trin. -- accepted
  Panicum longiflorum Trin. -- not accepted
  Panicum loreum Trin. -- not accepted
  Panicum loreum var. lanata Trin. -- not accepted
  Panicum loreum var. loreum Trin. -- not accepted
  Panicum macranthum Trin. -- not accepted
  Panicum macrourum Trin. -- not accepted
  Panicum malacophyllum (Trin.) Kuntze -- not accepted
  Panicum maynense Trin. -- not accepted
  Panicum megastachyum Nees ex Trin. -- not accepted
  Panicum melinis Trin. -- not accepted
  Panicum milioides Nees ex Trin. -- not accepted
  Panicum molinioides Trin. -- not accepted
  Panicum monobotrys Trin. ex Steud. -- not accepted
  Panicum munitum Trin. ex Steud. -- not accepted
  Panicum nemorosum Trin. -- not accepted
  Panicum onurus Willd. ex Trin. -- not accepted
  Panicum ovuliferum Trin. -- accepted
  Panicum ovuliferum var. ovuliferum Trin. -- not accepted
  Panicum pallens var. grandiflora Trin. ex Nees -- not accepted
  Panicum palustre Trin. -- not accepted
  Panicum paractaenoides Trin. -- not accepted
  Panicum pellitum Trin. -- accepted -- Maui panicgrass
  Panicum penicillatum Nees ex Trin. -- accepted
  Panicum petrosum Trin. -- not accepted
  Panicum phaeothrix Trin. -- not accepted
  Panicum philadelphicum Bernh. ex Trin. -- accepted -- panic de Philadelphie, Philadelphia panic grass, Philadelphia panicgrass
  Panicum philadelphicum var. philadelphicum Bernh. ex Trin. -- not accepted
  Panicum planopteris Trin. ex Döll -- not accepted
  Panicum planotis Trin. -- not accepted
  Panicum polycomum Trin. -- accepted
  Panicum porphyrium Trin. ex Nees -- not accepted
  Panicum potamium Trin. -- not accepted
  Panicum proboscideum Trin. -- not accepted
  Panicum procurrens Nees ex Trin. -- not accepted
  Panicum procurrens subvar. procurrens Nees ex Trin. -- not accepted
  Panicum procurrens var. procurrens Nees ex Trin. -- not accepted
  Panicum proliferum var. chloroticum (Nees ex Trin.) Hack. -- not accepted
  Panicum pruinosum Bernh. ex Trin. -- not accepted
  Panicum pruriens Fisch. ex Trin. -- not accepted
  Panicum pseudagrostis Trin. -- not accepted
  Panicum psilopodium Trin. -- not accepted -- barefoot panicgrass
  Panicum pterigodium Trin. -- not accepted
  Panicum puberulum Trin. -- not accepted
  Panicum pulcrum Willd. ex Trin. -- not accepted
  Panicum pungens Trin. -- not accepted
  Panicum ramosissimum Trin. -- not accepted
  Panicum rariflorum (J.C. Mikan ex Trin.) Makino & Nemoto -- not accepted
  Panicum redivivum Trin. ex Steud. -- not accepted
  Panicum rescissum Trin. -- not accepted
  Panicum riedelii Trin. -- not accepted
  Panicum rigidifolium Trin. -- not accepted
  Panicum rivulare Trin. -- not accepted
  Panicum rostellatum Trin. -- not accepted
  Panicum rugulosum Trin. -- not accepted
  Panicum rugulosum var. lasianthum (Trin.) Hack. -- not accepted
  Panicum rupestre Trin. -- accepted
  Panicum salzmannii Trin. ex Steud. -- not accepted
  Panicum sanguinale var. pruriens (Fisch. ex Trin.) Drake -- not accepted
  Panicum scabrum Trin. ex Steud. -- not accepted
  Panicum scandens (Schrad.) Trin. -- not accepted
  Panicum scariosum Trin. ex Steud. -- not accepted
  Panicum schiedeanum Trin. ex Steud. -- not accepted
  Panicum schiedeanum Trin. ex Beal -- not accepted
  Panicum sciurotis Trin. -- not accepted
  Panicum sclerochloa Trin. -- not accepted
  Panicum secundum Trin. -- not accepted
  Panicum senescens Trin. ex Steud. -- not accepted
  Panicum setifolium Trin. ex Steud. -- not accepted
  Panicum setosum Trin. ex Döll -- not accepted
  Panicum siccaneum Trin. -- not accepted
  Panicum speciosum Nees ex Trin. -- not accepted
  Panicum spectabile Nees ex Trin. -- not accepted
  Panicum stenocladium Trin. -- not accepted
  Panicum stigmosum Trin. -- not accepted
  Panicum stoloniferum var. majus (Trin.) Kunth -- not accepted
  Panicum stoloniferum var. minus Trin. ex Döll -- not accepted
  Panicum strigosum var. leucoblepharis (Trin.) Lelong -- not accepted
  Panicum subquadriparum Trin. -- not accepted
  Panicum suffultum (Mikan ex Trin.) Kuntze -- not accepted
  Panicum sumatrense ssp. psilopodium (Trin.) de Wet -- not accepted
  Panicum tenerum Beyr. ex Trin. -- not accepted -- blue-joint panicgrass, bluejoint panicgrass, bluejoint panicum
  Panicum thrasya Trin. -- not accepted
  Panicum thrasyoides Trin. -- not accepted
  Panicum truncatum Trin. -- not accepted
  Panicum tumescens Trin. -- not accepted
  Panicum unciphyllum Trin. -- not accepted
  Panicum unciphyllum var. unciphyllum Trin. -- not accepted
  Panicum unisetum (J. Presl) Trin. -- not accepted
  Panicum velutinosum Nees ex Trin. -- not accepted
  Panicum vilfoides Trin. ex B.D. Jacks. -- not accepted
  Panicum vilvoides Trin. -- not accepted
  Pappophorum eutrianoides Trin. ex Nees -- not accepted
  Pappostipa speciosa (Trin. & Rupr.) Romasch. -- accepted
  Pappostipa speciosa f. speciosa (Trin. & Rupr.) Romasch. -- accepted
  Pappostipa speciosa var. speciosa (Trin. & Rupr.) Romasch. -- accepted
  Pariana lanceolata Trin. -- accepted
  Pariana lunata Nees ex Trin. -- not accepted
  Pariana parviflora Trin. -- not accepted
  Parodiolyra ramosissima (Trin.) Soderstr. & Zuloaga -- accepted
  Paspalidium distans (Trin.) Hughes -- accepted -- spreading panicgrass
  Paspalidium jubiflorum (Trin.) Hughes -- accepted
  Paspalum abbreviatum Trin. ex Steud. -- not accepted
  Paspalum abbreviatum Trin. ex E. Fourn. -- not accepted
  Paspalum abstrusum Trin. -- not accepted
  Paspalum amazonicum Trin. -- not accepted
  Paspalum ammodes Trin. -- accepted
  Paspalum angustifolium Nees ex Trin. -- not accepted
  Paspalum aspidiotes Trin. -- accepted
  Paspalum barbatum Nees ex Trin. -- not accepted
  Paspalum barbatum var. pellitum (Nees ex Trin.) Döll -- not accepted
  Paspalum brachiatum Trin. ex Nees -- not accepted
  Paspalum brachystachyum (Trin.) Trin. -- not accepted
  Paspalum campestre Trin. -- not accepted
  Paspalum canescens Nees ex Trin. -- not accepted
  Paspalum chrysocomum Trin. ex Nees -- not accepted
  Paspalum chrysodactylon (Trin.) Döll -- not accepted
  Paspalum comans Trin. ex Döll -- not accepted
  Paspalum coryphaeum Trin. -- accepted -- Emperor crowngrass
  Paspalum corypheum Trin. -- not accepted
  Paspalum cristatum Trin. -- not accepted
  Paspalum cromyorhizon Trin. ex Döll -- accepted
  Paspalum ctenostachyum Trin. -- not accepted
  Paspalum cujabense Trin. -- not accepted
  Paspalum cultratum (Trin.) A.G. Burm. -- accepted
  Paspalum cuyabense Trin. -- not accepted
  Paspalum denticulatum Trin. -- accepted
  Paspalum denticulatum var. ciliatum Trin. -- not accepted
  Paspalum denticulatum var. denticulatum Trin. -- not accepted
  Paspalum dissitiflorum Trin. -- not accepted
  Paspalum distachyon Poit. ex Trin. -- accepted
  Paspalum dolichopus Trin. ex Steud. -- not accepted
  Paspalum dolichostachyus Trin. ex Nees -- not accepted
  Paspalum erianthum Nees ex Trin. -- accepted
  Paspalum eucomum Nees ex Trin. -- accepted
  Paspalum eucomum var. eucomum Nees ex Trin. -- not accepted
  Paspalum excavatum Nees ex Trin. -- not accepted
  Paspalum fastigiatum Nees ex Trin. -- not accepted
  Paspalum ferrugineum Trin. -- not accepted
  Paspalum guttatum Trin. -- accepted
  Paspalum heterotrichon Trin. -- accepted
  Paspalum hyalinum Nees ex Trin. -- accepted
  Paspalum ischnocaulon Trin. -- not accepted
  Paspalum lachneum Trin. ex Döll -- not accepted
  Paspalum lanceolatum J.G. Mikan ex Trin. -- not accepted
  Paspalum lanciflorum Trin. -- accepted
  Paspalum laxiflorum Trin. -- not accepted
  Paspalum lineare Trin. -- accepted
  Paspalum lividum Trin. ex Schltdl. -- not accepted -- longtom
  Paspalum maculosum Trin. -- accepted
  Paspalum maculosum var. maculosum Trin. -- not accepted
  Paspalum malacophyllum Trin. -- accepted -- ribbed paspalum
  Paspalum mandiocanum Trin. -- accepted
  Paspalum mandiocanum var. mandiocanum Trin. -- accepted
  Paspalum marginatum Trin. -- not accepted
  Paspalum maritimum Trin. -- accepted -- coastalsand paspalum
  Paspalum minutum Trin. -- not accepted
  Paspalum nervosum (Nees) Trin. ex LR Albee ined -- not accepted
  Paspalum notatum var. cromyorhizon (Trin. ex Döll) Herter -- not accepted
  Paspalum ovatum Nees ex Trin. -- not accepted
  Paspalum ovatum var. ovatum Nees ex Trin. -- not accepted
  Paspalum paniculatum ssp. umbrosum (Trin.) Roseng., B.R. Arrill. & Izag. -- not accepted
  Paspalum pectinatum Nees ex Trin. -- accepted
  Paspalum pellitum Nees ex Trin. -- not accepted
  Paspalum polyphyllum Nees ex Trin. -- accepted
  Paspalum protensum Trin. -- not accepted
  Paspalum pruinosum Trin. -- not accepted
  Paspalum quadrifarium var. ferrugineum (Trin.) Herter -- not accepted
  Paspalum radiatum Trin. -- not accepted
  Paspalum rupestre Trin. -- accepted -- rock paspalum
  Paspalum saccharoides Nees ex Trin. -- accepted
  Paspalum sanguinale var. pruriens (Fisch. ex Trin.) Hook. f. -- not accepted
  Paspalum sanguinolentum Trin. -- not accepted
  Paspalum scalare Trin. -- accepted
  Paspalum scalare var. scalare Trin. -- accepted
  Paspalum scutatum Nees ex Trin. -- accepted
  Paspalum serpens J. Presl ex Trin. -- not accepted
  Paspalum setaceum var. supinum (Bosc ex Poir.) Trin. -- accepted
  Paspalum suffultum Mikan ex Trin. -- not accepted
  Paspalum tenuis Nees ex Trin. -- not accepted
  Paspalum thrasyoides (Trin.) S. Denham -- accepted
  Paspalum tridentatum Trin. -- not accepted
  Paspalum umbrosum Trin. -- accepted
  Paspalum vaginatum var. littorale (R. Br.) Trin. ex Büse -- not accepted
  Paspalum velutinum Trin. ex Nees -- not accepted
  Pennisetum macrostachys (Brongn.) Trin. -- not accepted
  Pennisetum macrourum Trin. -- not accepted -- African feathergrass
  Pennisetum nervosum (Nees) Trin. -- not accepted -- bentspike fountaingrass, bentspike pennisetum
  Pennisetum parviflorum (Poir.) Trin. -- not accepted
  Pennisetum pedicellatum Trin. -- not accepted -- Kyasuma grass, kyasuma-grass
  Pennisetum peruvianum Trin. -- not accepted
  Pennisetum preslii Trin. ex Steud. -- not accepted
  Pentameris tortuosa (Trin.) Nees -- accepted
  Pereilema brasilianum Trin. -- not accepted
  Phalaris amethystina Trin. -- accepted
  Phalaris angusta Nees ex Trin. -- accepted -- timothy canarygrass
  Phalaris angusta var. angusta Nees ex Trin. -- not accepted
  Phalaris brevis Trin. -- not accepted
  Phalaris intermedia var. angusta (Nees ex Trin.) Chapm. -- not accepted
  Phalaris ludoviciana Torr. ex Trin. -- not accepted
  Phalaris minor var. nepalensis (Trin.) Bor -- not accepted
  Phalaris nepalensis Trin. -- not accepted
  Phalaris trivialis Trin. -- not accepted
  Phippsia (Trin.) R. Br. -- not accepted
  Phippsia (Trin.) R. Br. -- accepted -- icegrass
  Phippsia hauptiana (Trin. ex V.I. Krecz.) Á. Löve & D. Löve -- not accepted
  Phippsia monandra Trin. -- not accepted
  Phippsia phryganodes (Trin.) Á. Löve & D. Löve -- not accepted
  Phleum alpinum var. tenue Trin. -- not accepted
  Phragmites australis (Cav.) Trin. ex Steud. -- accepted -- common reed
  Phragmites australis ssp. australis (Cav.) Trin. ex Steud. -- accepted
  Phragmites communis Trin. -- not accepted -- common reed
  Phragmites karka (Retz.) Trin. ex Steud. -- accepted -- tall reed
  Phragmites martinicensis Trin. ex Steud. -- not accepted
  Phragmites occidentalis Trin. ex Steud. -- not accepted
  Piptatherum micranthum (Trin. & Rupr.) Barkworth -- accepted -- little-seed mountain-rice grass, littleseed ricegrass, Piptatherum micranthum
  Piptochaetium setosum (Trin.) Arechav. -- accepted -- bristly speargrass
  Piptochaetium stipoides (Trin. & Rupr.) Hack. ex Arechav. -- accepted -- purple spear grass
  Piptochaetium stipoides var. stipoides (Trin. & Rupr.) Hack. ex Arechav. -- accepted
  Pleuroplitis Trin. -- not accepted
  Pleuroplitis langsdorffii Trin. -- not accepted
  Pleuropogon douglasii Trin. ex Steud. -- not accepted
  Poa algida Trin. -- not accepted
  Poa andina Trin. -- not accepted
  Poa bryophila Trin. -- not accepted
  Poa calotheca (Trin.) Kunth -- not accepted
  Poa chilensis Trin. -- not accepted
  Poa cumingii Trin. -- accepted
  Poa diaphora Trin. -- accepted
  Poa fulva Trin. -- not accepted
  Poa fulvescens Trin. -- not accepted
  Poa glauca var. bryophila (Trin.) Tzvelev -- not accepted
  Poa glumaris Trin. -- not accepted
  Poa hauptiana (Trin. ex V.I. Krecz.) Trin. ex Kom. -- not accepted
  Poa koelerioides Trin. -- not accepted
  Poa leptocoma Trin. -- accepted -- bog bluegrass, bog bluegrass, marsh, marsh bluegrass
  Poa leptocoma ssp. leptocoma Trin. -- not accepted -- bog bluegrass
  Poa leptocoma var. leptocoma Trin. -- not accepted
  Poa neesii (Trin.) Kunth -- not accepted
  Poa persica Trin. -- accepted
  Poa petraea Trin. ex Kom. -- not accepted
  Poa phryganodes Trin. -- not accepted
  Poa psammodes (Trin.) Kunth -- not accepted
  Poa rigens Trin. ex Scribn. & Merr. -- not accepted
  Poa rotundata Trin. -- not accepted
  Poa sclerophylla (Trin.) Kunth -- not accepted
  Poa seminuda (Trin.) Kunth -- not accepted
  Poa stenantha Trin. -- accepted -- northern bluegrass
  Poa stenantha f. vivipara (Trin.) B. Boivin -- not accepted
  Poa stenantha var. leptocoma (Trin.) Griseb. -- not accepted
  Poa stenantha var. stenantha Trin. -- accepted
  Poa stenantha var. vivipara Trin. -- accepted
  Poa umbrosa Trin. -- accepted
  Poa weigeltiana Rchb. ex Trin. -- not accepted
  Podagrostis aequivalvis (Trin.) Scribn. & Merr. -- accepted
  Podagrostris aequivalis (Trin.) Scribn. & Merr. -- not accepted
  Podosemum affine (Trin.) Bush -- not accepted
  Poidium calotheca (Trin.) Matthei -- accepted
  Pollinia Trin. -- not accepted
  Pollinia dura Trin. -- not accepted
  Pollinia viminea (Trin.) Merr. -- not accepted
  Polypogon adscensionis Trin. -- not accepted
  Polypogon chaetotropis Trin. -- not accepted
  Polypogon crinitus Trin. -- not accepted
  Polypogon exasperatus (Trin.) Renvoize -- accepted
  Polypogon inaequalis Trin. -- not accepted
  Polypogon linearis Trin. -- accepted
  Polypogon longiflorus Nees ex Trin. -- not accepted
  Polyraphis (Trin.) Lindl. -- not accepted
  Pseudechinolaena spectabilis (Nees ex Trin.) Herter -- not accepted
  Ptilagrostis mongholica (Turcz. ex Trin.) Griseb. -- not accepted -- Colorado false needlegrass
  Puccinellia distans ssp. hauptiana (Trin. ex V.I. Krecz.) W.E. Hughes -- accepted -- Hauptian alkaligrass
  Puccinellia hauptiana (Trin. ex V.I. Krecz.) V.I. Krecz. -- not accepted
  Puccinellia hauptiana (Trin. ex V.I. Krecz.) Kitag. -- not accepted
  Puccinellia phryganodes (Trin.) Scribn. & Merr. -- accepted -- creeping alkaligrass
  Puccinellia phryganodes ssp. phryganodes (Trin.) Scribn. & Merr. -- accepted -- creeping alkaligrass
  Raddia capillata (Trin.) Hitchc. -- not accepted
  Raddia polypodioides (Trin.) Chase -- not accepted
  Rhipidocladum parviflorum (Trin.) McClure -- accepted
  Riedelia mikanii Trin. ex Kunth -- not accepted
  Ripidium Trin. -- not accepted
  Ripidium japonicum (Trin.) Trin. -- not accepted
  Ripidium ravennae (L.) Trin. -- not accepted
  Ripidium strictum Trin. -- not accepted
  Roegneria ciliaris (Trin.) Nevski -- not accepted
  Rostraria Trin. -- accepted -- hairgrass, Rostraria
  Rottboellia compressa subvar. capensis (Trin.) Roberty -- not accepted
  Rottboellia loricata Trin. -- not accepted
  Rottboellia salzmannii Trin. ex Steud. -- not accepted
  Saccharum alopecuroides subvar. brasilianum (Trin.) Roberty -- not accepted
  Saccharum angustifolium (Nees) Trin. -- accepted
  Saccharum brasilianum Trin. -- not accepted
  Saccharum giganteum Trin. ex Hack. -- not accepted
  Saccharum jamaicense Trin. -- not accepted
  Saccharum sibiricum (Trin.) Roberty -- not accepted
  Sacciolepis vilvoides (Trin.) Chase -- accepted
  Schismus fasciculatus P. Beauv. ex Trin. -- not accepted
  Schismus hirsutus Trin. -- not accepted
  Schizachyrium riedelii (Trin.) A. Camus -- not accepted
  Schizachyrium salzmannii (Trin. ex Steud.) Nash -- accepted
  Schizachyrium sanguineum subvar. riedelii (Trin.) Roberty -- not accepted
  Schizostachyum capitatum (Trin.) Rupr. -- not accepted
  Sclerachne Torr. ex Trin. -- not accepted
  Sclerachne arkansana (Nutt.) Torr. ex Trin. -- not accepted
  Sclerachne pilosa Trin. -- not accepted
  Setaria alopecurus Trin. ex Steud. -- not accepted
  Setaria jubiflora (Trin.) R.D. Webster -- not accepted
  Setaria onurus (Willd. ex Trin.) Griseb. -- not accepted
  Setaria paractaenoides (Trin.) Urb. -- not accepted
  Setaria rariflora J.C. Mikan ex Trin. -- not accepted -- Brazilian bristlegrass
  Setaria setosa var. paractaenioides (Trin.) Ekman -- not accepted
  Setaria speciosa (Nees ex Trin.) Kuhlm. -- not accepted
  Silene repens Patrin ex Pers. -- accepted -- creeping silene, pink campion
  Silene repens ssp. repens Patrin ex Pers. -- not accepted -- pink campion
  Sorengia caricoides (Nees ex Trin.) Zuloaga & Morrone -- not accepted
  Sorengia tenera (Beyr. ex Trin.) Zuloaga & Morrone -- not accepted
  Sorghum caucasicum (Trin.) Griseb. -- not accepted
  Sorghum lithophilum (Trin.) Kuntze -- not accepted
  Sorghum riedelii (Trin.) Kuntze -- not accepted
  Sorghum salzmannii (Trin. ex Steud.) Kuntze -- not accepted
  Spartina capensis Nees ex Trin. -- not accepted
  Spartina coarctata Trin. -- not accepted
  Spartina foliosa Trin. -- accepted -- California cordgrass
  Spartina gracilis Trin. -- accepted -- alkali cordgrass
  Spartina spartinae (Trin.) Merr. -- not accepted
  Spartina spartinae (Trin.) Merr. ex Hitchc. -- accepted -- gulf cordgrass
  Sphenopholis obtusata ssp. lobata (Trin.) Scribn. -- not accepted
  Sphenopholis obtusata var. lobata (Trin.) Scribn. ex B.L. Rob. -- not accepted
  Spodiopogon Trin. -- accepted
  Spodiopogon sibiricus Trin. -- accepted
  Sporobolus acuminatus (Trin.) Kuhlm. -- not accepted
  Sporobolus acuminatus (Trin.) Hack. -- accepted
  Sporobolus adustus (Trin.) Roseng., B.R. Arrill. & Izag. -- accepted
  Sporobolus aeneus (Trin.) Kunth -- accepted
  Sporobolus arundinaceus (Trin.) Kunth -- not accepted
  Sporobolus asper var. drummondii (Trin.) Vasey -- not accepted
  Sporobolus asper var. hookeri (Trin.) Vasey -- not accepted
  Sporobolus asper var. macer (Trin.) Shinners -- not accepted
  Sporobolus asperifolius (Nees & Meyen ex Trin.) Nees & Meyen -- not accepted
  Sporobolus berterianus (Trin.) Hitchc. & Chase -- not accepted
  Sporobolus berteroanus (Trin.) Hitchc. & Chase -- not accepted
  Sporobolus compositus var. drummondii (Trin.) Kartesz & Gandhi -- accepted -- Drummond's dropseed, hairy dropseed
  Sporobolus compositus var. macer (Trin.) Kartesz & Gandhi -- accepted -- composite dropseed, Mississippi dropseed
  Sporobolus domingensis (Trin.) Kunth -- accepted -- coral dropseed
  Sporobolus drummondii (Trin.) Vasey -- not accepted
  Sporobolus exilis (Trin.) Balansa -- not accepted
  Sporobolus eximius (Nees ex Trin.) Ekman -- accepted
  Sporobolus fimbriatus (Trin.) Nees -- accepted -- fringed dropseed
  Sporobolus gracilis (Trin.) Merr. -- not accepted
  Sporobolus indicus var. exilis (Trin.) T. Koyama -- not accepted
  Sporobolus macer (Trin.) Hitchc. -- not accepted
  Sporobolus minor Trin. ex Kunth -- accepted
  Sporobolus minutiflorus (Trin.) Link -- not accepted
  Sporobolus pilifer (Trin.) Kunth -- accepted
  Sporobolus pilifer (Trin.) Kuhlm. -- not accepted
  Sporobolus piliferus (Trin.) Kunth -- accepted -- Barundi dropseed
  Sporobolus plumbeus (Trin.) Hemsl. -- not accepted
  Sporobolus pyramidatus ssp. domingensis (Trin.) Catasús -- not accepted
  Sporobolus richardsonis (Trin.) Merr. -- not accepted
  Sporobolus rigens (Trin.) Desv. -- accepted
  Sporobolus rigens var. rigens (Trin.) Desv. -- accepted
  Steinchisma decipiens (Nees ex Trin.) W.V. Br. -- accepted
  Steirachne barbata (Trin.) Renvoize -- accepted
  Stenotaphrum Trin. -- accepted -- St. Augustine grass, stenotaphrum
  Stenotaphrum glabrum Trin. -- not accepted
  Stenotaphrum glabrum var. glabrum Trin. -- not accepted
  Stipa bicolor Trin. & Rupr. -- not accepted
  Stipa comata Trin. & Rupr. -- not accepted
  Stipa comata var. comata Trin. & Rupr. -- not accepted -- needleandthread
  Stipa cumingiana Trin. -- not accepted
  Stipa cumingiana var. cumingiana Trin. -- not accepted
  Stipa cumingiana var. lachnophylla (Trin.) Trin. & Rupr. -- not accepted
  Stipa eminens var. sellowiana (Nees ex Trin. & Rupr.) Kuntze -- not accepted
  Stipa fernandeziana (Trin. & Rupr.) Steud. -- not accepted
  Stipa humilis var. speciosa (Trin. & Rupr.) Kuntze -- not accepted
  Stipa intermedia Trin. & Rupr. -- not accepted
  Stipa lachnophylla Trin. -- not accepted
  Stipa laevis (Trin. & Rupr.) Parodi -- not accepted
  Stipa leucotricha Trin. & Rupr. -- not accepted
  Stipa megapotamia Spreng. ex Trin. -- not accepted
  Stipa megapotamica Trin. & Rupr. -- not accepted
  Stipa neesiana Trin. & Rupr. -- not accepted
  Stipa neesiana var. chilensis Trin. & Rupr. -- not accepted
  Stipa neesiana var. fernandeziana Trin. & Rupr. -- not accepted
  Stipa neesiana var. neesiana Trin. & Rupr. -- not accepted
  Stipa penniglumis Trin. -- not accepted
  Stipa plumosa Trin. -- not accepted
  Stipa plumosa var. plumosa Trin. -- not accepted
  Stipa poeppigiana Trin. & Rupr. -- not accepted
  Stipa poeppigiana var. poeppigiana Trin. & Rupr. -- not accepted
  Stipa pubiflora (Trin. & Rupr.) Muńoz-Schick -- not accepted
  Stipa robusta Nutt. ex Trin. & Rupr. -- not accepted
  Stipa sellowiana Nees ex Trin. & Rupr. -- not accepted
  Stipa spartea Trin. -- not accepted
  Stipa spartea var. spartea Trin. -- not accepted
  Stipa speciosa Trin. & Rupr. -- not accepted
  Stipa speciosa f. speciosa Trin. & Rupr. -- not accepted
  Stipa speciosa var. speciosa Trin. & Rupr. -- not accepted
  Stipa splendens Trin. -- not accepted
  Stipa tenuissima Trin. -- not accepted
  Stipa tenuissima var. tenuissima Trin. -- not accepted
  Stipa viridula Trin. -- not accepted
  Streptostachys macrantha (Trin.) Zuloaga & Soderstr. -- accepted
  Syntherisma cuyabensis (Trin.) Hitchc. -- not accepted
  Syntherisma pruriens (Fisch. ex Trin.) Arthur -- not accepted
  Syntherisma sanguinalis var. pruriens (Fisch. ex Trin.) Honda -- not accepted
  Tatianyx arnacites (Trin.) Zuloaga & Soderstr. -- accepted
  Thrasya ansata (Trin.) Pilg. -- not accepted
  Thrasya cultrata (Trin.) Nees -- not accepted
  Thrasya petrosa (Trin.) Chase -- not accepted
  Thrasya petrosa (Trin.) Kuhlm. -- not accepted
  Thrasya petrosa var. petrosa (Trin.) Chase -- not accepted
  Thrasya thrasyoides (Trin.) Chase -- not accepted
  Thurberia pilosa (Trin.) Vasey -- not accepted
  Thysanolaena acarifera (Trin.) Arn. & Nees -- not accepted
  Trachypogon macroglossus Trin. -- accepted
  Trachypogon polymorphus var. macroglossus (Trin.) Hack. -- not accepted
  Trichochloa calycina Trin. -- not accepted
  Trichochloa glomerata (Willd.) Trin. -- not accepted
  Trichochloa longiseta Trin. -- not accepted
  Trichochloa mexicana (L.) Trin. -- not accepted
  Trichochloa sobolifera (Muhl. ex Willd.) Trin. -- not accepted
  Trichodium clavatum (Trin.) Schult. & Schult. f. -- not accepted
  Trichopteryx flammida (Trin.) Benth. -- not accepted
  Tripsacum fasciculatum Trin. ex Steud. -- not accepted
  Tripsacum fasciculatum Trin. ex Galeotti -- not accepted
  Tripsacum fasciculatum Trin. ex Asch. -- not accepted -- Guatemalan gamagrass
  Trisetobromus hirtus (Trin.) Nevski -- not accepted
  Trisetum barbinode Trin. -- accepted
  Trisetum barbinode var. barbinode Trin. -- accepted
  Trisetum caudulatum Trin. -- accepted
  Trisetum caudulatum var. caudulatum Trin. -- accepted
  Trisetum cernuum Trin. -- accepted -- nodding oatgrass
  Trisetum cernuum ssp. cernuum Trin. -- accepted
  Trisetum cernuum var. cernuum Trin. -- not accepted -- nodding oatgrass
  Trisetum glomeratum (Kunth) Trin. ex Steud. -- accepted -- pili uka
  Trisetum hirtum Trin. -- not accepted
  Trisetum lobatum Trin. -- not accepted
  Trisetum pensylvanicum (Spreng.) Trin. -- not accepted
  Trisetum sesquiflorum Trin. -- not accepted
  Triticum angustum (Trin.) F. Herm. -- not accepted
  Triticum dasystachyum (Trin.) F. Herm. -- not accepted
  Triticum molle (Trin.) F. Herm. -- not accepted
  Tylothrasya petrosa (Trin.) Döll -- not accepted
  Uniola prostrata (Kunth) Trin. -- not accepted
  Uniola racemiflora Trin. -- not accepted
  Uniola sparta Trin. -- not accepted
  Uniola thalassica (Kunth) Trin. -- not accepted
  Urachne Trin. -- not accepted
  Urachne asperifolia (Michx.) Trin. -- not accepted
  Urachne brevicaudata Trin. -- not accepted
  Urachne canadensis Torr. & A. Gray ex Trin. & Rupr. -- not accepted
  Urachne chilensis Trin. -- not accepted
  Urachne coerulescens (Desf.) Trin. -- not accepted
  Urachne haenkeana Trin. & Rupr. -- not accepted
  Urachne inconspicua Trin. & Rupr. -- not accepted
  Urachne laevis Trin. & Rupr. -- not accepted
  Urachne lanata Trin. & Rupr. -- not accepted
  Urachne major Trin. & Rupr. -- not accepted
  Urachne meyeniana Trin. & Rupr. -- not accepted
  Urachne micrantha Trin. & Rupr. -- not accepted
  Urachne obtusa (Nees & Meyen) Trin. & Rupr. -- not accepted
  Urachne panicoides Nees ex Trin. -- not accepted
  Urachne panicoides Trin. ex Nees -- not accepted
  Urachne panicoides var. brasiliensis Trin. & Rupr. -- not accepted
  Urachne panicoides var. panicoides Nees ex Trin. -- not accepted
  Urachne pubiflora Trin. & Rupr. -- not accepted
  Urachne racemosa (Sm.) Trin. -- not accepted
  Urachne setosa Trin. -- not accepted
  Urachne simplex var. peruviana Trin. & Rupr. -- not accepted
  Urachne stipoides Trin. & Rupr. -- not accepted
  Urachne trichotoma (Nees) Trin. -- not accepted
  Uralepis tricuspis (Trin.) Steud. -- not accepted
  Urochloa adspersa (Trin.) R.D. Webster -- accepted -- Dominican signalgrass
  Urochloa megastachya (Nees ex Trin.) Morrone & Zuloaga -- accepted
  Urochloa subquadripara (Trin.) R.D. Webster -- not accepted -- tropical signalgrass
  Vilfa adusta Trin. -- not accepted
  Vilfa aenea Trin. -- not accepted
  Vilfa airoides (Torr.) Trin. ex Steud. -- not accepted
  Vilfa algida (Sol.) Trin. -- not accepted
  Vilfa arkansana Trin. -- not accepted
  Vilfa arundinacea Trin. -- not accepted
  Vilfa asperifolia Nees & Meyen ex Trin. -- not accepted
  Vilfa berteroana Trin. -- not accepted
  Vilfa compressa Trin. -- not accepted
  Vilfa cryptandra (Torr.) Trin. -- not accepted
  Vilfa diandra (Retz.) Trin. -- not accepted
  Vilfa domingensis Trin. -- not accepted
  Vilfa erosa Trin. -- not accepted
  Vilfa exilis Trin. -- not accepted
  Vilfa eximia Nees ex Trin. -- not accepted
  Vilfa fulvescens Trin. -- not accepted
  Vilfa gracilis Trin. -- not accepted
  Vilfa gracilis Trin. -- not accepted
  Vilfa indica (L.) Trin. ex Steud. -- not accepted
  Vilfa intermedia Trin. -- not accepted
  Vilfa jacquemontii (Kunth) Trin. -- not accepted
  Vilfa juncea (P. Beauv.) Trin. -- not accepted
  Vilfa minutiflora Trin. -- not accepted
  Vilfa monandra (Trin.) Trin. -- not accepted
  Vilfa pilifera Trin. -- not accepted
  Vilfa plumbea Trin. -- not accepted
  Vilfa repens (J. Presl) Trin. -- not accepted
  Vilfa richardsonis Trin. -- not accepted
  Vilfa rigens Trin. -- not accepted
  Vilfa rupestris Trin. -- not accepted
  Vilfa rupestris (Kunth) Trin. -- not accepted
  Vilfa schiedeana Trin. -- not accepted
  Vilfa serotina Trin. -- not accepted
  Vilfa spartinae Trin. -- not accepted
  Vilfa squarrosa Trin. -- not accepted
  Vilfa subsetacea Trin. -- not accepted
  Vilfa tenacissima var. exilis (Trin.) E. Fourn. -- not accepted
  Vilfa tenera Trin. -- not accepted
  Vilfa tremula (Willd.) Trin. -- not accepted
  Vulpia antucensis Trin. -- accepted
  Vulpia quadriflora Trin. ex Steud. -- not accepted
  Xiphagrostis japonicus (Trin.) Coville -- not accepted
  Zeugites mexicanus (Kunth) Trin. ex Steud. -- not accepted
  Zizania caduciflora (Trin.) Hand.-Mazz. -- not accepted
  Zizania microstachya Nees ex Trin. -- not accepted
  Zizania natans Bosc ex Trin. -- not accepted
  Zizaniopsis microstachya (Nees ex Trin.) Döll & Asch. -- accepted
  Zoysia tenuifolia Willd. ex Trin. -- not accepted
 
 Kingdom Bacteria
  Desulfovibrio termitidis Trinkerl et al., 1991 -- valid
   

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