Poaceae

• Achnatherum hymenoides (Roem. & Schult.) Ricker ex Piper, Indian ricegrass, Synonym: Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper, Native, Common, Photos Phytoimages, USDA_Plants

• Achnatherum lettermanii Vasey, Letterman's needlegrass, Synonym: Stipa lettermanii Vasey, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Achnatherum nelsonii (Scribn.) Barkworth, Nelson's needlegrass, Columbia needlegrass, Nelson achnatherum, Synonym: Stipa nelsonii Scribn., Native, Common, Photos Phytoimages, USDA_Plants

• Achnatherum pinetorum (M.E. Jones) Barkworth, Pine needlegrass, Synonym: Stipa pinetorum M.E. Jones, Native, Jackson & Grand Cos., Photos Phytoimages, USDA_Plants

• Achnatherum richardsonii (Link) Barkworth, Richardson needlegrass, Richardson's needlegrass, Synonym: Stipa richardsonii Link, Native, Rare, Photos Phytoimages, USDA_Plants

• Achnatherum robustum (Vasey) Barkworth, Sleepy grass, sleepygrass, Synonym: Stipa robusta (Vasey) Scribn., Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Achnatherum scribneri (Vasey) Barkworth, Scribner's needlegrass, Synonym: Stipa scribneri Vasey, Native, Uncommon, Photos Phytoimages, USDA_Plants

• Aegilops cylindrica Host, Jointed goatgrass, Synonym: lindropyrum cylindricum (Host) Á. Löve, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Agropyron cristatum (L.) Gaertn., Crested wheatgrass, Clustered wheat grass, Synonym: Agropyron desertorum (Fisch. ex Link) Schult., Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Agrostis exarata Trin., Spike bentgrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Agrostis gigantea Roth, Redtop bent, Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Agrostis idahoensis Nash, Idaho bentgrass, Idaho redtop, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Agrostis mertensii Trin., Northern bentgrass, Arctic bentgrass, Native, Common, Photos Phytoimages, USDA_Plants

• Agrostis scabra Willd., Ticklegrass, Native, Common, Photos Phytoimages, USDA_Plants

• Agrostis stolonifera L., Creeping bentgrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Agrostis variabilis Rydb., Mountain bentgrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Alopecurus aequalis Sobol., Short-awn foxtail, Native, Common, Photos Phytoimages, USDA_Plants

• Alopecurus arundinaceus Poir., Creeping meadow foxtail, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Alopecurus geniculatus L., Marsh foxtail, Water foxtail, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Alopecurus magellanicus Lam., Arctic foxtail, Alpine meadow foxtail, Synonym: Alopecurus alpinus Sm., Alopecurus alpinus ssp. glaucus Lam., Native, Rare, Photos Phytoimages, USDA_Plants

• Alopecurus pratensis L., Meadow foxtail, Field meadow foxtail, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Andropogon gerardii Vitman, Big bluestem, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Andropogon hallii Hack., Sand bluestem, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Anthoxanthum hirtum (Schrank) Y. Schouten & Veldkamp, Northern sweetgrass, Synonym: Hierochloe hirta (Schrank) Borbás, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Aristida basiramea Engelm. ex Vasey, Forked three-awn, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Aristida dichotoma Michx. var. curtissii A. Gray, Churchmouse three-awn, Curtis' three-awn, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Aristida oligantha Michx., Prairie three-awn, Not listed for Colorado in USDA Plants, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Aristida purpurea Nutt., Purple three-awn, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Aristida purpurea Nutt. var. fendleriana (Steud.) Vasey, Fendler's three-awn, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Aristida purpurea Nutt. var. longiseta (Steud.) Vasey, Long seta three-awn, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Aristida purpurea Nutt. var. nealleyi (Vasey) Allred, Blue three-awn, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Aristida purpurea Nutt. var. wrightii (Nash) Allred, Wright's threeawn, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl, Tall oatgrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Avena fatua L., wild oats, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Avena sativa L., Cultivated oats, Common oats, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Avenula hookeri (Scribn.) Holub, Oatgrass, Spikeoat, Synonym: Helictotrichon hookeri (Scribn.) Henr., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Beckmannia syzigachne (Steud.) Fernald, American sloughgrass, Sloughgrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Bothriochloa laguroides (DC.) Herter, Silver bluestem, Silver beardgrass, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Bouteloua curtipendula (Michx.) Torr., Sideoats grama, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Bouteloua gracilis (Willd. ex Kunth) Lag. ex Griffiths, Blue grama, Synonym: Chondrosum gracile Willd. ex Kunth, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Bouteloua hirsuta Lag., Hairy grama, Synonym: Chondrosum hirsutum (Lag.) Kunth, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Bouteloua simplex Lag., Matted grama, Synonym: Chondrosum prostratum (Lag.) Weet, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Bromus briziformis Fisch. & C.A. Mey., Rattlesnake brome, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Bromus carinatus Hook. & Arn., California brome, Mountain brome, Rescue grass, Synonym: Ceratochloa carinata (Hook. & Arn.) Tutin, Native, Common, Photos Phytoimages, USDA_Plants

• Bromus ciliatus L., Fringed brome, Synonym: Bromus ciliatus (L.) Holub, B. canadensis Michx., Native, Common, Photos Phytoimages, USDA_Plants

• Bromus commutatus Schrad., Meadow brome, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Bromus diandrus Roth, Great brome, Ripgut brome, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Bromus frondosus (Shear) Wooton & Standl., Weeping brome, Synonym: Bromopsis frondosa (Shear) Holub, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Bromus inermis Leyss., Smooth brome, Synonym: Bromopsis inermis (Leyss.) Holub, Introduced, Common, Photos Phytoimages, USDA_Plants

• Bromus japonicus Thunb., Japanese brome, Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Bromus lanatipes (Shear) Rydb., Woolly brome, Synonym: Bromopsis lanatipes (Shear) Holub, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Bromus mucroglumis Wagnon, Sharpglume brome, Synonym: Bromopsis mucroglumis (Wagnon) Holub. Not listed for Colorado in USDA Plants, Native, Jackson Co., Photos Phytoimages, USDA_Plants

• Bromus polyanthus Scribn., Colorado brome, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Bromus porteri (Coult.) Nash, Nodding brome, Porter's brome, Synonym: Bromopsis porteri J.M. Coult., Native, Common, Photos Phytoimages, USDA_Plants

• Bromus pubescens Muhl. ex Willd., Hairy woodland brome, Synonym: Bromopsis pubescens (Muhl. ex Willd.) Holub, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Bromus pumpellianus Scribn., Pumpelly's brome, Synonym: Bromopsis pumpelliana (Scribn.) Holub, Bromus inermis ssp. pumpellianus (Scribn.) Wagnon, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Bromus racemosus L., Bald brome, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Bromus richardsonii Link, Fringed brome, Synonym: Bromopsis richardsonii (Link) Holub, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Bromus secalinus L., Chess, Rye brome, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Bromus squarrosus L., Corn brome, Introduced, Boulder Co., Photos Phytoimages, USDA_Plants

• Bromus sterilis L., Poverty brome, Synonym: Anisantha sterilis (L.) Nevski, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Bromus tectorum L., Cheatgrass, Cheat grass, Synonym: Anisantha tectorum (L.) Nevski, Introduced, Common, Photos Phytoimages, USDA_Plants

• Buchloe dactyloides (Nutt.) Engelm., Buffalograss, Synonym: Buchloe dactyloides (Nutt.) J.T. Columbus., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Calamagrostis canadensis (Michx.) P.Beauv., Bluejoint, Native, Common, Photos Phytoimages, USDA_Plants

• Calamagrostis montanensis Scribn. ex Vasey, Plains reedgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Calamagrostis purpurascens R.Br., Purple reedgrass, Native, Common, Photos Phytoimages, USDA_Plants

• Calamagrostis scopulorum M.E. Jones, Ditch reedgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Calamagrostis stricta (Timm) Koeler, Slimstem reedgrass, Slim-stem reed grass, Narrowspike reedgrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Calamovilfa longifolia (Hook.) Scribn., Prairie sandreed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Catabrosa aquatica (L.) P. Beauv., Brookgrass, Water whorlgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Cenchrus longispinus (Hack.) Fernald, Longspine sandbur, Mat sandbur, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Chloris verticillata Nutt., Tumble windmill grass, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Chloris virgata Sw., Feather fingergrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Cinna latifolia (Trevis. ex Goepp.) Griseb., Drooping woodreed, slender wood-reed, Native, Uncommon, Photos Phytoimages, USDA_Plants

• Cynodon dactylon (L.) Pers., Bermuda grass, Bahama grass, Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Dactylis glomerata L., Orchard grass, Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Danthonia californica Bol., California oatgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Danthonia intermedia Vasey, Timber oatgrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Danthonia parryi Scribn., Parry's oatgrass, Parry danthonia, Parry oatgrass, Parry's danthonia, Native, Common, Photos Phytoimages, USDA_Plants

• Danthonia spicata (L.) P. Beauv. ex Roem. & Schult., Poverty oatgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Danthonia unispicata (Thurb.) Munro ex Macoun, Onespike danthonia, Native, Jackson Co., Photos Phytoimages, USDA_Plants

• Deschampsia cespitosa (L.) P.Beauv., Tufted hairgrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Dichanthelium acuminatum (Sw.) Gould & C.A. Clark, Hairy panicgrass, Tapered rosette grass, Synonym: Panicum lanuginosum Elliott, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Dichanthelium linearifolium (Scribn. ex Nash) Gould, Slimleaf panicgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Dichanthelium oligosanthes (Schult.) Gould var. scribnerianum (Nash) Gould, Few-flowered panicgrass, Scribner's rosette grass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Digitaria ischaemum (Schreb.) Schreb. ex Muhl., Smooth crabgrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Digitaria sanguinalis (L.) Scop., hairy crabgrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Diplachne fusca (L.) P. Beauv. ex Roem. & Schult. ssp. fasciculata (Lam.) P.M. Peterson & N. Snow, Bearded sprangletop, Synonym: Leptochloa fusca (L.) Kunth ssp. fascicularis (Lam.) N. Snow, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Distichlis stricta (Torr.) Rydb., Desert saltgrass, Synonym: Distichlis spicata (L.) Greene, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Echinochloa crus-galli (L.) P. Beauv., Barnyardgrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Echinochloa frumentacea Link, White panic, Billion-dollar grass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Echinochloa muricata (P. Beauv.) Fernald, Rough barnyardgrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Eleusine indica (L.) Gaertn., Indian goosegrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Elymus albicans (Scribn. & J.G.Sm.) Á.Löve, Montana wheatgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Elymus bakeri (E.E. Nelson) Á. Löve, Baker's wheatgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Elymus canadensis L., Canada wildrye, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Elymus curvatus Piper, Awnless wildrye, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Elymus elymoides (Raf.) Swezey, Bottlebrush squirreltail, squirreltail, western bottle-brush grass, Synonym: Sitanion hystrix (Nutt.) J.G. Sm., Elymus elymoides ssp. brevifolius (J.G. Sm.) Barkworth, Native, Common, Photos Phytoimages, USDA_Plants

• Elymus glaucus Buckley, Blue wild rye, blue wildrye, Native, Common, Photos Phytoimages, USDA_Plants

• Elymus lanceolatus (Scribn. & J.G.Sm.) Gould, Thickspike wheatgrass, Streambank wheatgrass, Streamside wild rye, Synonym: Agropyron dasystachyum (Hook.) Scribn. & J.G. Sm., Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Elymus repens (L.) Gould, Quackgrass, Twitch, couchgrass, creeping quackgrass, quickgrass, quitch, scutch, Synonym: Elytrigia repens (L.) Desv. ex Nevski, Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Elymus scribneri (Vasey) M.E.Jones, Spreading wheatgrass, Scribner's wild rye, Scribner's wildrye, Native, Common, Photos Phytoimages, USDA_Plants

• Elymus trachycaulus (Link) Gould ex Shinners, Slender wheatgrass, slender wild rye, Native, Common, Photos Phytoimages, USDA_Plants

• Elymus violaceus (E.E. Nelson) Á. Löve, Arctic wheatgrass, Synonym: Elymus trachycaulus (Link) Gould ex Shinners ssp. andinus (Scribn. & J.G. Sm.) Á. Löve & D. Löve, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Eragrostis barrelieri Daveau, Mediterranean lovegrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Eragrostis cilianensis (All.) Vign. ex Janchen, Stinkgrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Eragrostis hypnoides (Lam.) Britton, Creeping lovegrass, Teal lovegrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Eragrostis mexicana (Hornem.) Link ssp. virescens (J. Presl) S.D. Koch & Sánchez Vega, Mexican lovegrass, Native, Weld Co., Photos Phytoimages, USDA_Plants

• Eragrostis minor Host, Little lovegrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Eragrostis pectinacea (Michx.) Nees ex Steud., Tufted lovegrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Eragrostis pilosa (L.) P. Beauv., Indian lovegrass, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Eragrostis secundiflora J. Presl ssp. oxylepis (Torr.) S.D. Koch, Red lovegrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Eragrostis trichodes (Nutt.) Alph. Wood, Sand lovegrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Festuca arizonica Vasey, Arizona fescue, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Festuca baffinensis Polunin, Baffin fescue, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Festuca brachyphylla ssp. coloradensis Frederiksen, Shortleaf fescue, Colorado fescue, Native, Common, Photos Phytoimages, USDA_Plants

• Festuca calligera (Piper) Rydb., Callused fescue, Southwest fescue, Sheep fescue, Synonyms: Festuca ovina L., Festuca ovina L. ssp. calligera Piper, Native, Jackson Co., Photos Phytoimages, USDA_Plants

• Festuca earlei Rydb., Earle's fescue, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Festuca hallii (Vasey) Piper, Plains rough fescue, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Festuca idahoensis Elmer, Idaho fescue, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Festuca minutiflora Rydb., Smallflower fescue, small-flower fescue, Native, Common, Photos Phytoimages, USDA_Plants

• Festuca rubra L., Red fescue, Ravine fescue, Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Festuca saximontana Rydb., Rocky Mountain fescue, Mountain fescue, Native, Common, Photos Phytoimages, USDA_Plants

• Festuca thurberi Vasey, Thurber fescue, Thurber's fescue, Native, Common, Photos Phytoimages, USDA_Plants

• Festuca trachyphylla (Hack.) Krajina, Hard fescus, Synonym: Festuca brevipila Tracey. USDA Plants indicates B. trachyphylla is an illegitimate name, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Glyceria borealis (Nash) Batch., Small floating mannagrass, Northern manna grass, Native, Uncommon, Photos Phytoimages, USDA_Plants

• Glyceria elata (Nash ex Rydb.) M.E. Jones, Tall mannagrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Glyceria grandis S.Watson, American mannagrass, manna grass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Glyceria striata (Lam.) Hitchc., Fowl manna grass, fowl mannagrass, Native, Common, Photos Phytoimages, USDA_Plants

• Helictotrichon mortonianum (Scribn.) Henrard, Morton's alpine oatgrass, Native, Common, Photos Phytoimages, USDA_Plants

• Hesperostipa comata Trin. & Rupr., Needle and thread, Synonym: Stipa comata Trin. & Rupr., Native, Common, Photos Phytoimages, USDA_Plants

• Hesperostipa neomexicana (Thurb. ex J.M. Coult.) Barkworth, New Mexico feathergrass, Synonym: Stipa neomexicana (Thurb. ex J.M. Coult.) Scribn., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Hesperostipa spartea (Trin.) Barkworth, Porcupinegrass, Synonym: Stipa spartea Trin., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Hilaria jamesii (Torr.) Benth, Galleta, Synonym: Pleuraphis jamesii Torr., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Holcus lanatus L., Common velvetgrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Hordeum brachyantherum Nevski, Meadow barley, Synonym: Critesion brachyantherum (Nevski) Barkworth & D.R. Dewey, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Hordeum jubatum L., Foxtail barley, Meadow foxtail, Synonym: Critesion jubatum (L.) Nevski, Native, Common, Photos Phytoimages, USDA_Plants

• Hordeum murinum L., Smooth barley, Mouse barley, Synonym: Critesion murinum (L.) Á. Löve, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Hordeum pusillum Nutt., Little barley, Synonym: Critesion pusillum (Nutt.) Á. Löve, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Hordeum vulgare L., Common barley, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Koeleria macrantha (Ledeb.) Schult., Junegrass, Native, Common, Photos Phytoimages, USDA_Plants

• Leersia oryzoides (L.) Sw., Rice cutgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Leucopoa kingii (S.Watson) Cassidy, Spike fescue, spike-fescue, Native, Common, Photos Phytoimages, USDA_Plants

• Leymus ambiguus (Vasey & Scribn.) D.R.Dewey, Colorado wildrye, Synonym: Elymus ambiguus Vasey & Scribn., Native, Common, Photos Phytoimages, USDA_Plants

• Leymus cinereus (Scribn. & Merr.) Á.Löve, Colorado Wild rye, Synonym: Elymus cinereus Scribn. & Merr., Native, Rare, Photos Phytoimages, USDA_Plants

• Leymus triticoides (Buckley) Pilg., Creeping wildrye, Beardless wildrye, Synonym: Elymus simplex Scribn. & T.A. Williams ex Schrib., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Lolium multiflorum Lam., Italian ryegrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Lolium perenne L., Perennial ryegrass, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Lolium pratense Huds., Ryegrass, Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Melica bulbosa Geyer ex Porter & J.M. Coult., Oniongrass, Synonym: Bromelica bulbosa (Geyer ex Porter & J.M. Coult.) W.A. Weber, Native, Jackson & Grand Cos., Photos Phytoimages, USDA_Plants

• Melica spectabilis Scribn., Purple oniongrass, Synonym: Bromelica spectabilis (Scribn.) W.A. Weber, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Miscanthus sinensis Andersson, Chinese silvergrass, Introduced, Boulder Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia alopecuroides (Griseb.) P.M. Peterson & Columbus, Bristly wolfstail, Synonym: Lycurus setosus (Nutt.) C.G. Reeder. M. alopecuroides not in USDA Plants., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia ammophila P.M. Peterson, Blowout grass, Synonym: Redfieldia flexuosa (Thurb.) Vasey. M. ammophila not in USDA plants, Native, Weld Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia andina (Nutt.) Hitchc., Foxtail muhly, Native, Grand Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi, Scratchgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia cuspidata (Torr. ex Hook.) Rydb., Plains muhly, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia filiculmis Vasey, Slimstem muhly, Native, Common, Photos Phytoimages, USDA_Plants

• Muhlenbergia filiformis (Thurb.) Rydb., Pull-up muhly, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Muhlenbergia glomerata (Willd.) Trin., Spiked muhly, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia mexicana (L.) Trin., Mexican muhly, Including var. filiformis (Torr.) Scribn., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia minutissima (Steud.) Swallen, Annual muhly, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia montana (Nutt.) Hitchc., Mountain muhly, Native, Common, Photos Phytoimages, USDA_Plants

• Muhlenbergia paniculata (Nutt.) P.M. Peterson, Tumblegrass, Synonym: Schedonnardus paniculatus (Nutt.) Trel., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia phleoides (Kunth) P.M. Peterson, Wolfstail, Synonym: Lycurus phleoides Kunth, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia porteri Scribn. ex Beal, Bush muhly, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia pungens Thurb., Sandhill muhly, Native, Weld Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia racemosa (Michx.) Britton, Stern & Poggenb., Marsh muhly, Green muhly, Native, Uncommon, Photos Phytoimages, USDA_Plants

• Muhlenbergia richardsonis (Trin.) Rydb., Mat muhly, soft-leaf muhly, Native, Common, Photos Phytoimages, USDA_Plants

• Muhlenbergia schreberi J.F. Gmel., Nimblewill, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia torreyi (Kunth) Hitchc. ex Bush, Ring muhly, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Muhlenbergia tricholepis (Torr.) P.M. Peterson, Pine dropseed, Synonym: Blepharoneuron tricholepis (Torr.) Nash, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Muhlenbergia wrightii Vasey ex J.M.Coult., Spike muhly, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Munroa squarrosa (Nutt.) Torr., False buffalograss, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Nassella viridula (Trin.) Barkworth, Green needlegrass, Synonym: Stipa viridula Trin., Native, Uncommon, Photos Phytoimages, USDA_Plants

• Oryzopsis asperifolia Michx., Roughleaf ricegrass, White-grain mountain ricegrass, Native, Common, Photos Phytoimages, USDA_Plants

• Panicum capillare L., Witchgrass, Synonym: Panicum hillmanii Chase, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Panicum dichotomiflorum Michx. var. dichotomiflorum, fall panicgrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Panicum miliaceum L., Broomcorn millet, Proso millet, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Panicum virgatum L., Switchgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Pascopyrum smithii (Rydb.) Á. Löve, Western wheatgrass, Synonym: Pascopyrum smithii (Rydb.) Barkworth & D.R. Dewey, Elymus smithii (Rydb.) Gould, Native, Common, Photos Phytoimages, USDA_Plants

• Paspalum dilatatum Poir., Dallisgrass, Introduced, Boulder Co., Photos Phytoimages, USDA_Plants

• Paspalum pubiflorum Rupr. ex Fourn., Hairyseed paspalum, Introduced, Boulder Co., Photos Phytoimages, USDA_Plants

• Paspalum setaceum Michx., Thin paspalum, Native, Weld Co., Photos Phytoimages, USDA_Plants

• Pennisetum glaucum (L.) R. Br., Pearl millet, Introduced, Boulder Co., Photos Phytoimages, USDA_Plants

• Phalaris arundinacea L., Reed canary grass, reed canarygrass, Synonym: Phalaroides arundinacea (L.) Raeusch., Native, Uncommon, Photos Phytoimages, USDA_Plants

• Phalaris canariensis L., Annual canarygrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Phippsia algida (Sol.) R. Br., Icegrass, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Phleum alpinum L., Alpine timothy, Synonym: Phleum commutatum Gaudin, Native, Common, Photos Phytoimages, USDA_Plants

• Phleum pratense L., Timothy, Introduced, Common, Photos Phytoimages, USDA_Plants

• Phragmites australis (Cav.) Trin. ex Steud., Common reed, Both native and introduced forms occur in lower 48 states, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Piptatherum exiguum Thurb., Little ricegrass, Synonym: Oryzopsis exigua Thurb., Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Piptatherum micranthum (Trin. & Rupr.) Barkworth, Littleseed ricegrass, Synonym: Oryzopsis micrantha (Trin. & Rupr.) Thurb., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Piptatherum pungens (Torr.) Hitchc., Mountain ricegrass, Synonym: Oryzopsis pungens (Torr. ex Spreng.) Hitchc., Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Poa abbreviata ssp. pattersonii (Vasey) Á. Löve & D. Löve & Kapoor, Patterson's bluegrass, Synonym: Poa pattersonii Vasey, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Poa alpina L., Alpine bluegrass, Native, Common, Photos Phytoimages, USDA_Plants

• Poa annua L., Annual blue grass, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Poa arctica R.Br., Arctic bluegrass, Including ssp. aperta (Scribn. & Merr.) Soreng, ssp. grayana (Vasey) Á. Löve, D. Löve & B. M. Kapoor, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Poa arida Vasey, Plains bluegrass, Synonym: Poa glaucifolia Scribn. & T.A. Williams, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Poa bulbosa L., Bulbous bluegrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Poa compressa L., Canada Bluegrass, Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Poa cusickii ssp. epilis (Scribn.) W.A. Weber, Cusick's bluegrass, Native, Common, Photos Phytoimages, USDA_Plants

• Poa cusickii ssp. pallida Soreng, Cusick's bluegrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Poa fendleriana (Steud.) Vasey, Muttongrass, Mutton grass, Native, Common, Photos Phytoimages, USDA_Plants

• Poa fendleriana (Steud.) Vasey ssp. longiligula (Scribn. & T.A. Williams) Soreng, Muttongrass, Mutton grass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Poa glauca Vahl ssp. glauca, Glaucous bluegrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Poa glauca Vahl ssp. rupicola (Nash ex Rydb.) W.A. Weber, Timberline bluegrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Poa interior Rydb., Inland bluegrass, Synonym: Poa nemoralis ssp. interior (Rydb.) W.A. Weber, Native, Common, Photos Phytoimages, USDA_Plants

• Poa leptocoma Trin., Marsh bluegrass, Bog bluegrass, Native, Uncommon, Photos Phytoimages, USDA_Plants

• Poa lettermanii Vasey, Letterman's bluegrass, Native, Uncommon, Photos Phytoimages, USDA_Plants

• Poa occidentalis Vasey, New Mexico bluegrass, Native, Jackson Co., Photos Phytoimages, USDA_Plants

• Poa palustris L., Fowl bluegrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Poa pratensis L., Kentucky Bluegrass, Synonym: Poa agassizensis B. Boivin & D. Löve, Introduced, Common, Photos Phytoimages, USDA_Plants

• Poa reflexa Vasey & Scribn., Nodding bluegrass, Native, Common, Photos Phytoimages, USDA_Plants

• Poa secunda J. Presl, Sandberg's bluegrass, Big bluegrass, Synonym: Poa ampla Merr., Poa canbyi (Scribn.) Howell, Poa nevadensis Vasey ex Scribn., Poa sandbergii Vasey, Poa scabrella (Thurb.) Benth. ex Vasey, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Poa stenantha Trin., Northern bluegrass, Native, Grand Co., Photos Phytoimages, USDA_Plants

• Poa tracyi Vasey, Tracy's bluegrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Poa trivialis L., Rough bluegrass, Native, Grand & Boulder Cos. (Larimer, DLN 6459), Photos Phytoimages, USDA_Plants

• Poa wheeleri Vasey, Wheeler's bluegrass, Synonym: Poa nervosa (Hook.) Vasey, Native, Common, Photos Phytoimages, USDA_Plants

• Podagrostis humilis (Vasey) Bjorkman, Alpine bentgrass, mountain bent grass, Synonym: Agrostis humilis Vasey, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Polypogon interruptus Kunth, Ditch beardgrass, Ditch rabbitsfoot grass, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Polypogon monspeliensis (L.) Desf., Annual rabbitsfoot grass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Psathyrostachys juncea (Fisch.) Nevski, Russian wildrye, Synonym: Elymus junceus Fisch., Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Pseudoroegneria spicata (Pursh) Gould, Bluebunch, Bluebunch wheatgrass, Bluebunch-wheat grass, Synonym: Agropyron spicatum Pursh, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Puccinellia nuttalliana (Schult.) Hitchc., Nuttall's alkali grass, Synonym: Puccinellia airoides (Nutt.) S. Watson & J.M. Coult., Native, Common, Photos Phytoimages, USDA_Plants

• Schedonorus arundinaceus (Schreb.) Dumort., Tall fescue, Synonym: Festuca arundinacea Schreb., Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Schedonorus pratensis (Huds.) P. Beauv., Meadow fescue, Synonym: Festuca pratensis Huds., Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Schizachne purpurascens (Torr.) Swallen, False melic, False melic grass, Native, Uncommon, Photos Phytoimages, USDA_Plants

• Schizachyrium scoparium (Michx.) Nash, Little bluestem, Synonym: Andropogon scoparius Michx., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Secale cereale L., Cultivated rye, Cereal rye, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Setaria italica (L.) P. Beauv., Foxtail bristlegrass, Foxtail millet, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Setaria pumila (Poir.) Roem. & Schult., Yellow bristlegrass, Yellow foxtail, Synonym: Setaria glauca (L.) P. Beauv., Setaria lutescens (Weigel) F.T. Hubbard, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Setaria verticillata (L.) P. Beauv., Hooked bristlegrass, Introduced, Boulder Co., Photos Phytoimages, USDA_Plants

• Setaria viridis (L.) P. Beauv., Green bristlegrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Sorghastrum nutans (L.) Nash, Indiangrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Sorghum bicolor (L.) Moench, Grain sorghum, Introduced, Weld Co., Photos Phytoimages, USDA_Plants

• Sorghum halepense (L.) Pers., Johnsongrass, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Spartina gracilis Trin., Alkali cordgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Spartina pectinata Bosc ex Link, Prairie cordgrass, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Sphenopholis intermedia (Rydb.) Rydb., Slender wedgescale, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Sphenopholis obtusata (Michx.) Scribn., Prairie wedgescale, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Sporobolus airoides (Torr.) Torr., Alkali sacaton, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Sporobolus compositus (Poir.) Merr., Composite dropseed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Sporobolus cryptandrus (Torr.) A.Gray, Sand dropseed, Native, Common, Photos Phytoimages, USDA_Plants

• Sporobolus heterolepis (A. Gray) A. Gray, Prairie dropseed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Sporobolus nealleyi Vasey, Gyp dropseed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Sporobolus neglectus Nash, puff-sheath dropseed, Native, Weld Co., Photos Phytoimages, USDA_Plants

• Thinopyrum intermedium (Opiz) Melderis, Intermediate wheatgrass, Synonym: Elymus hispidus (Opiz) Melderis, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang, Rush wheatgrass, Tall wheatgrass, Synonym: Elymus elongatus (Host) Runemark, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Torreyochloa pallida (Torr.) Church var. pauciflora (J. Presl) J.I. Davis, Pale false mannagrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Tridens muticus (Torr.) Nash, Slim tridens, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Triplasis purpurea (Walter) Chapm., Purple sandgrass, Native, Weld Co., Photos Phytoimages, USDA_Plants

• Trisetum spicatum (L.) K.Richt., Spike trisetum, Synonym: Trisetum montanum Vasey, Native, Common, Photos Phytoimages, USDA_Plants

• Trisetum wolfii (Vasey) Coult., Wolf's trisetum, Synonym: Graphephorum wolfii (Vasey) Vasey ex J.M. Coult., Native, Common, Photos Phytoimages, USDA_Plants

• Triticum aestivum L., Wheat, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Vahlodea atropurpurea (Wahlenb.) Scheele, Mountain hairgrass, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Vulpia octoflora (Walter) Rydb., Sixweeks fescue, Native, Larimer Co., Photos Phytoimages, USDA_Plants