Grasses  
   
Duckweed Family (Lemnaceae)
Common duckweed - Lemna minor

Grass Family (Gramineae)
Crested wheatgrass - Agropyron cristatum
Thickspike wheatgrass - Agropyron dasystachyum
Desert wheatgrass - Agropyron desertorum
Smooth/beardless wheatgrass - Agropyron inerme
Western wheatgrass - Agropyron smithii
Bluebunch wheatgrass - Agropyron spicatum
Bearded wheatgrass - Agropyron subsecundum
Slender wheatgrass - Agropyron trachycaulum
Redtop - Agrostis alba
Winter bentgrass - Agrostis scabra
Water bentgrass - Agrostis semiverticillata
Silver bluestem - Andropogon saccharoides
Fendler three-awn - Aristida fendleriana
Three-awn - Aristida glauca
Purple/Red three-awn - Aristida longiseta
Sixweeks grama - Bouteloua barbata
Side-oats grama - Bouteloua curtipendula
Black grama - Bouteloua eriopoda
Blue grama - Bouteloua gracilis (Common)
One-flowered grama - Bouteloua uniflora
Nodding brome - Bromus anomalus
California brome - Bromus carinatus
Fringed brome - Bromus ciliatus
Smooth brome - Bromus inermis
Big mountain brome - Bromus marginatus
Many-flowered/mountain brome - Bromus polyanthus
Ripgut grass - Bromus rigidus
Foxtail chess - Bromus rubens
Cheatgrass - Bromus tectorum
Sandbur - Cenchrus pauciflorus
Feather fingergrass - Chloris virgata
Bermuda grass - Cynodon dactylon
Orchardgrass - Dactylis glomerata
Desert saltgrass - Distichlis stricta
Wild rye - Elymus canadensis
Great Basin wild rye - Elymus cinereus
Sixweeks fescue - Festuca octoflora
Sheep fescue - Festuca ovina
Pacific fescue - Festuca pacifica
Mannagrass - Glyceria elata
Fowl mannagrass - Glyceria striata
Galleta grass - Hilaria jamesii
Big galleta - Hilaria rigida
Meadow barley - Hordeum brachyantherum
Foxtail barley - Hordeum jubatum
Mouse barley - Hordeum stebbensii
Prairie Junegrass - Koeleria cristatum
Foxtail muhley - Muhlenbergia andina
Mountain muhly - Muhlenbergia montana
Bush muhly - Muhlenbergia porteri
Spiny muhly - Muhlenbergia pungens
Mat muhly - Muhlenbergia richardsonis
Ring muhly - Muhlenbergia torreyi
Spike muhly - Muhlenbergia wrightii
Indian ricegrass - Oryzopsis hymenoides (Common)
Bloomer ricegrass - Oryzopsis bloomeri (hybrid)
Witchgrass - Panicum capillare
Timothy - Phleum pratense
Common reed/canegrass - Phragmites australis
Bigelow bluegrass - Poa bigelovii
Bulbous bluegrass - Poa bulbosa
Canada bluegrass - Poa compressa
Mutton grass - Poa fendleriana (Common)
Nevada bluegrass - Poa nevadensis
Kentucky bluegrass - Poa pratensis
Sandberg bluegrass - Poa sandbergii
Pine bluegrass - Poa scabrella
Rabbitfoot grass - Polypogon monspeliensis
Alkaligrass - Puccinellia airoides
Yellow bristlegrass - Setaria glauca
Squirreltail - Sitanion hystrix
Squirreltail - Sitanion jubatum
Johnson grass - Sorghum halepense
Prairie wedgegrass - Sphenopholis obtusata
Spike dropseed - Sporobolus contractus
Sand dropseed - Sporobolus cryptandrus
Mesa dropseed - Sporobolus flexuosus
Giant dropseed - Sporobolus giganteus
Subalpine needlegrass - Stipa columbiana
Needle-and-thread grass - Stipa comata
Letterman needlegrass - Stipa lettermanii
Desert needlegrass - Stipa speciosa
Fluffgrass - Tridens pulchella


Rush Family (Juncaceae)
Wiregrass - Juncus balticus
Toad rush - Juncus bufonius
Mexican rush - Juncus mexicanus
Torrey rush - Juncus torreyi
Swordleaf rush - Juncus xiphioides
Woodrush - Luzula parviflora

Sedge Family (Cyperaceae)
Water sedge - Carex aquatilis
Golden sedge - Carex aurea
Ovalheaad sedge - Carex festivella
Bottlebrush sedge - Carex hystricina
Kellogg sedge - Carex kelloggii
Smallwing sedge - Carex microptera
Western sedge - Carex occidentalis
Beaked sedge - Carex rostrata
Valley sedge - Carex vallicola
Common spikerush - Eleocharis macrostachya
Tule bulrush - Scirpus acutus
American bulrush - Scirpus americanus
Panicled bulrush - Scirpus microcarpus
Alkali bulrush - Scirpus paludosus
Softstem bulrush - Scirpus validus

Spiderwort Family (Commelinaceae)
Spiderwort - Tradescantia occidentalis scopulorum (Common)