Monocotyledon species found in Montana number at least 615. The Montana Natural Heritage Program has identified a number of monocot species as ''Species of Concern''. Monocotyledons are one of two major groups of flowering plants (or angiosperms) that are traditionally recognized, the other being

dicotyledon The dicotyledons, also known as dicots (or, more rarely, dicotyls), are one of the two groups into which all the flowering plants (angiosperms) were formerly divided. The name refers to one of the typical characteristics of the group: namely, t ...

s, or dicots. Monocot seedlings typically have one cotyledon ( seed-leaf), in contrast to the two cotyledons typical of dicots. Monocots have been recognized at various taxonomic ranks, and under various names (see below). The APG II system recognises a

clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...

called "monocots" but does not assign it to a taxonomic rank. There are between 50,000 and 60,000 species within this group; according to

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

there are 59,300 species. The largest family in this group (and in the flowering plants as a whole) by number of species are the orchids (family Orchidaceae), with more than 20,000 species. In agriculture the majority of the biomass produced comes from monocots. The true grasses, family

Poaceae Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns an ...

(Gramineae), are the most economically important family in this group. These include all the true grains ( rice, wheat, maize, etc.), the pasture grasses, sugar cane, and the bamboos. True grasses have evolved to become highly specialised for wind pollination. Grasses produce much smaller flowers, which are gathered in highly visible plumes ( inflorescences). Other economically important monocot families are the palm family (

Arecaceae The Arecaceae is a family of perennial flowering plants in the monocot order Arecales. Their growth form can be climbers, shrubs, tree-like and stemless plants, all commonly known as palms. Those having a tree-like form are called palm trees ...

), banana family (

Musaceae Musaceae is a family of flowering plants composed of three genera with about 91 known species, placed in the order Zingiberales. The family is native to the tropics of Africa and Asia. The plants have a large herbaceous growth habit with leaves ...

), ginger family ( Zingiberaceae) and the onion family Alliaceae, which includes such ubiquitously used vegetables as

onions An onion (''Allium cepa'' L., from Latin ''cepa'' meaning "onion"), also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus ''Allium''. The shallot is a botanical variety of the onion ...

and

garlic Garlic (''Allium sativum'') is a species of bulbous flowering plant in the genus ''Allium''. Its close relatives include the onion, shallot, leek, chive, Allium fistulosum, Welsh onion and Allium chinense, Chinese onion. It is native to South A ...

Arrow-grass family

Order:

Najadales Najadales is the botanical name of an order of flowering plants. A well-known system that used this name is the Cronquist system (1981), which used this name for an order in subclass Alismatidae with this circumscription: * order Najadales ** fa ...

, family: Juncaginaceae * Common bog arrow-grass, ''Triglochin maritima'' *

Flowering quillwort A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechanism ...

, ''Triglochin scilloides'' * Slender bog arrow-grass, ''Triglochin palustris''

Arum family

Order: Arales, family: Araceae * Yellow skunk-cabbage, ''Lysichiton americanus''

Bur-reeds

Order: Typhales, family:

Sparganiaceae Sparganiaceae is a family of flowering plants. Such a family was previously recognized by most taxonomists. The APG II system, of 2003 (unchanged from the APG system, 1998), also recognizes this family, and assigns it to the order Poales in the c ...

* Branching bur-reed, ''Sparganium androcladum'' * Large bur-reed, ''Sparganium eurycarpum'' * Narrowleaf bur-reed, ''Sparganium angustifolium'' * Small bur-reed, ''Sparganium natans''

Cattails

Order: Typhales, family: Typhaceae *

Broadleaf cattail ''Typha latifolia'' (broadleaf cattail, bulrush, common bulrush, common cattail, cat-o'-nine-tails, great reedmace, cooper's reed, cumbungi) is a perennial herbaceous plant in the genus ''Typha''. It is found as a native plant species in Nort ...

, ''Typha latifolia'' * Narrow-leaved cattail, ''Typha angustifolia''

Ditch-grass family

Order:

, family: Ruppiaceae * Ditch-grass, ''Ruppia maritima''

Duckweeds

Order: Arales, family:

Lemnaceae Lemnoideae is a subfamily of flowering aquatic plants, known as duckweeds, water lentils, or water lenses. They float on or just beneath the surface of still or slow-moving bodies of fresh water and wetlands. Also known as bayroot, they arose ...

* Columbia water-meal, ''Wolffia columbiana'' * Dotted watermeal, ''Wolffia borealis'' * Duck-meal, ''Spirodela polyrrhiza'' * Lesser duckweed, ''Lemna minor'' * Pale duckweed, ''Lemna valdiviana'' * Spotted water-meal, ''Wolffia brasiliensis'' * Star duckweed, ''Lemna trisulca'' * Turion duckweed, ''Lemna turionifera''

Flowering-rush family

Order: Alismatales, family:

Butomaceae ''Butomus'' is the only known genus in the plant family Butomaceae, native to Europe and Asia. It is considered invasive in some parts of the United States. Taxonomy The Butomaceae family has been recognized by most taxonomists as a plant ...

* Flowering-rush, ''Butomus umbellatus''

Grasses

Order:

Cyperales The Poales are a large order of flowering plants in the monocotyledons, and includes families of plants such as the grasses, bromeliads, and sedges. Sixteen plant families are currently recognized by botanists to be part of Poales. Description ...

, family:

* Alaskan oniongrass, ''Melica subulata'' * Alkali cordgrass, ''Spartina gracilis'' * Alkali muhly, ''Muhlenbergia asperifolia'' * Alkali sacaton, ''Sporobolus airoides'' *

Alpine bluegrass ''Poa alpina'', commonly known as alpine meadow-grass or alpine bluegrass, is a species of grass with a primarily holarctic distribution. It is noted for being pseudoviviparous: in place of seeds, it sometimes reproduces asexually, creating new ...

, ''Poa alpina'' * American mannagrass, ''Glyceria grandis'' * American sloughgrass, ''Beckmannia syzigachne'' *

Annual bluegrass ''Poa annua'', or annual meadow grass (known in America more commonly as annual bluegrass or simply poa), is a widespread low-growing turfgrass in temperate climates. Notwithstanding the reference to annual plant in its name, perennial bio-types ...

, ''Poa annua'' * Annual false wheatgrass, ''Eremopyrum triticeum'' * Annual hairgrass, ''Deschampsia danthonioides'' * Annual muhly, ''Muhlenbergia minutissima'' * Arctic bluegrass, ''Poa arctica'' * Awnless wild rye, ''Elymus submuticus'' * Baffin fescue, ''Festuca baffinensis'' * Banff loose-flowered bluegrass, ''Poa laxa ssp. banffiana'' *

Barnyard grass ''Echinochloa'' is a very widespread genus of plants in the grass family and tribe Paniceae. Some of the species are known by the common names barnyard grass or cockspur grass. Some of the species within this genus are millets that are grown ...

, ''Echinochloa crus-galli'' * Basin brome, ''Bromus polyanthus'' * Beardless oats, ''Trisetum wolfii'' * Beardless wild rye, ''Leymus triticoides'' * Bermudagrass, ''Cynodon dactylon'' * Big bluestem, ''Andropogon gerardii'' * Blue grama, ''Bouteloua gracilis'' * Blue wild rye, ''Elymus glaucus'' * Blue-joint reedgrass, ''Calamagrostis canadensis'' * Bluebunch wheatgrass, ''Pseudoroegneria spicata'' * Bog bluegrass, ''Poa leptocoma'' * Boreal mannagrass, ''Glyceria borealis'' * Bottlebrush squirrel-tail, ''Elymus elymoides'' * Bristly bristle grass, ''Setaria verticillata'' * Bristly dogtail grass, ''Cynosurus echinatus'' * Broad-glumed brome, ''Bromus latiglumis'' * Brome fescue, ''Vulpia bromoides'' * Brook grass, ''Catabrosa aquatica'' *

Buffalo grass Buffalo grass may refer to * Buffalo grass, sweet vernal grass or vanilla grass (''Anthoxanthum odoratum'') * Buffalo grass (''Bouteloua dactyloides'') * Buffalo grass (''Brachiaria mutica'') * Buffalo grass or sweet grass (''Hierochloe odorata'') ...

, ''Bouteloua dactyloides'' * Bulbous bluegrass, ''Poa bulbosa'' * California brome, ''Bromus carinatus'' *

California oatgrass ''Danthonia californica'' is a species of grass known by the common name California oatgrass. This plant is native to two separate regions of the Americas, western North America from California to Saskatchewan, and Chile. Description ''Danthonia ...

, ''Danthonia californica'' *

Canada bluegrass ''Poa compressa'', the Canada bluegrass or flattened meadow-grass, is a perennial flattened meadow grass, similar to common meadow-grass, ''Poa pratensis''. It is native to Europe but it can be found nearly worldwide as an introduced species. I ...

, ''Poa compressa'' * Canada wild rye, ''Elymus canadensis'' * Cascade reedgrass, ''Calamagrostis tweedyi'' *

Cheatgrass ''Bromus tectorum'', known as downy brome, drooping brome or cheatgrass, is a winter annual grass native to Europe, southwestern Asia, and northern Africa, but has become invasive in many other areas. It now is present in most of Europe, southe ...

, ''Bromus tectorum'' * Chilean brome, ''Bromus berteroanus'' * Colonial bentgrass, ''Agrostis capillaris'' * Columbia needlegrass, ''Stipa nelsonii ssp. dorei'' *

Common barley Barley (''Hordeum vulgare''), a member of the grass family, is a major cereal grain grown in temperate climates globally. It was one of the first cultivated grains, particularly in Eurasia as early as 10,000 years ago. Globally 70% of barley pr ...

, ''Hordeum vulgare'' * Common canary grass, ''Phalaris canariensis'' * Common hardgrass, ''Sclerochloa dura'' * Common reed, ''Phragmites australis'' * Common velvetgrass, ''Holcus lanatus'' * Contracted Indian ricegrass, ''Oryzopsis contracta'' * Corn brome, ''Bromus squarrosus'' * Creeping foxtail, ''Alopecurus arundinaceus'' * Crested dogtail grass, ''Cynosurus cristatus'' *

Crested wheatgrass ''Agropyron cristatum'', the crested wheat grass, crested wheatgrass, fairway crested wheat grass, is a species in the family Poaceae. This plant is often used as forage and erosion control. It is well known as a widespread introduced species on ...

, ''Agropyron cristatum'' * Cultivated oat, ''Avena sativa'' * Cultivated rye, ''Secale cereale'' * Cultivated wheat, ''Triticum aestivum'' * Cusick's bluegrass, ''Poa cusickii'' * Darnel ryegrass, ''Lolium temulentum'' * Dense pine reedgrass, ''Calamagrostis koelerioides'' * Dense silky bentgrass, ''Apera interrupta'' * Ditch reedgrass, ''Calamagrostis scopulorum'' * Drooping woodreed, ''Cinna latifolia'' * Eastern wild rice, ''Zizania aquatica'' * False buffalograss, ''Monroa squarrosa'' * Few-flowered oatgrass, ''Danthonia unispicata'' * Few-flowered panic-grass, ''Dichanthelium oligosanthes'' * Field brome, ''Bromus arvensis'' * Fowl bluegrass, ''Poa palustris'' * Fowl mannagrass, ''Glyceria striata'' * Fox-tail timothy, ''Crypsis alopecuroides'' *

Foxtail barley ''Hordeum jubatum'', with common names foxtail barley, bobtail barley, squirreltail barley, and intermediate barley, is a perennial plant species in the grass family Poaceae. It occurs wild mainly in northern North America and adjacent northeast ...

, ''Hordeum jubatum'' * Foxtail fescue, ''Vulpia myuros'' * Foxtail muhly, ''Muhlenbergia andina'' * Fringed brome, ''Bromus ciliatus'' * Great Basin wild rye, ''Leymus cinereus'' * Green bristle grass, ''Setaria viridis'' * Green needlegrass, ''Stipa viridula'' *

Hairy crabgrass ''Digitaria sanguinalis'' is a species of grass known by several common names, including hairy crabgrass, hairy finger-grass, large crabgrass, crab finger grass, purple crabgrass. It is one of the better-known species of the genus ''Digitaria'', ...

, ''Digitaria sanguinalis'' * Ice grass, ''Phippsia algida'' * Idaho bentgrass, ''Agrostis idahoensis'' *

Idaho fescue ''Festuca idahoensis'' is a species of grass known by the common names Idaho fescue and blue bunchgrass. It is native to western North America, where it is widespread and common. It can be found in many ecosystems, from shady forests to open plai ...

, ''Festuca idahoensis'' *

Indian goosegrass ''Eleusine indica'', the Indian goosegrass, yard-grass, goosegrass, wiregrass, or crowfootgrass, is a species of grass in the family Poaceae. It is a small annual grass distributed throughout the warmer areas of the world to about 50 degrees lati ...

, ''Eleusine indica'' *

Indian ricegrass ''Eriocoma hymenoides'' (common names: Indian ricegrass and sand rice grass) is a cool-season, perennial bunchgrass with narrow, rolled leaf blades.Mojave Desert Wildflowers, Pam MacKay, 2nd Ed., p287 It is native to western North America east of ...

, ''Oryzopsis hymenoides'' *

Indiangrass ''Sorghastrum nutans'', commonly known as either Indiangrass or yellow Indiangrass, is a North American prairie grass found in the central and eastern United States and Canada, especially in the Great Plains and tallgrass prairies. Descriptio ...

, ''Sorghastrum nutans'' * Inland bluegrass, ''Poa interior'' *

Intermediate wheatgrass ''Thinopyrum intermedium'', known commonly as intermediate wheatgrass, is a sod-forming perennial grass in the Triticeae tribe of Pooideae native to Europe and Western Asia. It is part of a group of plants commonly called wheatgrasses because of ...

, ''Thinopyrum intermedium'' * Italian foxtail, ''Setaria italica'' *

Italian ryegrass ''Lolium multiflorum'' (Italian rye-grass, annual ryegrass) is a ryegrass native to temperate Europe, though its precise native range is unknown. It is a herbaceous annual, biennial, or perennial grass that is grown for silage, and as a cover ...

, ''Lolium multiflorum'' * Japanese brome, ''Bromus japonicus'' * Johnson grass, ''Sorghum halepense'' * Jointed goatgrass, ''Aegilops cylindrica'' * Kentucky bluegrass, ''Poa pratensis'' * Leafy bentgrass, ''Agrostis pallens'' * Lemmon's alkaligrass, ''Puccinellia lemmonii'' * Lemmon's needlegrass, ''Stipa lemmonii'' * Letterman's bluegrass, ''Poa lettermanii'' * Letterman's needlegrass, ''Stipa lettermanii'' *

Little barley ''Hordeum pusillum'', also known as little barley, is an annual grass native to most of the United States and southwestern Canada. It arrived via multiple long-distance dispersals of a southern South American species of ''Hordeum'' about one mil ...

, ''Hordeum pusillum'' * Little bluestem, ''Schizachyrium scoparium'' * Little lovegrass, ''Eragrostis minor'' * Little ricegrass, ''Oryzopsis exigua'' * Littleseed ricegrass, ''Oryzopsis micrantha'' * Long-spine sandbur, ''Cenchrus longispinus'' * Marsh muhly, ''Muhlenbergia racemosa'' *

Mat muhly ''Muhlenbergia richardsonis'', known by the common name mat muhly, is a species of grass. It is native to North America, where it can be found throughout much of Canada, Alaska, the western half of the contiguous United States through California, ...

, ''Muhlenbergia richardsonis'' * Meadow barley, ''Hordeum brachyantherum'' *

Meadow fescue ''Festuca pratensis'', the meadow fescue, is a perennial species of grass, which is often used as an ornamental grass in gardens, and is also an important forage crop. It grows in meadows, roadsides, old pastures, and riversides on moist, rich ...

, ''Festuca pratensis'' * Meadow foxtail, ''Alopecurus geniculatus'' * Meadow foxtail, ''Alopecurus pratensis'' * Meadow timothy, ''Phleum pratense'' * Mediterranean or sea barley, ''Hordeum marinum'' * Missoula County oats, ''Trisetum x orthochaetum'' * Montana wheatgrass, ''Elymus albicans'' * Mountain bentgrass, ''Agrostis humilis'' * Mountain fescue, ''Festuca viridula'' * Mountain foxtail, ''Alopecurus alpinus'' * Mountain hairgrass, ''Vahlodea atropurpurea'' * Mountain muhly, ''Muhlenbergia montana'' * Mountain timothy, ''Phleum alpinum'' * Mouse barley, ''Hordeum murinum'' * Mt. Washington bluegrass, ''Poa laxa'' *

Muttongrass ''Poa fendleriana'' is a species of grass known by the common name muttongrass. It is native to western North America, where its distribution extends from western Canada to northern Mexico.Narrow false oats, ''Trisetum spicatum'' * Narrow-flower bluegrass, ''Poa stenantha'' * Narrow-flowered brome, ''Bromus vulgaris'' *

Needle-and-thread ''Hesperostipa comata'', commonly known as needle-and-thread grass, is a species of grass native to North America, especially the western third. It has a wide distribution spanning from northern Canada to Mexico. Description ''Hesperostipa comat ...

, ''Stipa comata'' * Nelson's needlegrass, ''Stipa nelsonii'' * Nevada needlegrass, ''Stipa nevadensis'' * Nodding bluegrass, ''Poa reflexa'' * Nodding fescue, ''Festuca subulata'' * Nodding trisetum, ''Trisetum canescens'' * Northern bentgrass, ''Agrostis borealis'' * Northern fescue, ''Festuca viviparoidea'' * Northern sweet grass, ''Hierochloe hirta'' * Northern wild rye, ''Leymus innovatus'' * Nuttall's alkali grass, ''Puccinellia nuttalliana'' * Oniongrass, ''Melica bulbosa'' * Orchard grass, ''Dactylis glomerata'' * Oregon bentgrass, ''Agrostis oregonensis'' * Pale manna grass, ''Puccinellia pauciflora'' *

Panic grass ''Panicum'' (panicgrass) is a large genus of about 450 species of Poaceae, grasses native throughout the tropical regions of the world, with a few species extending into the northern temperate zone. They are often large, Annual plant, annual or P ...

, ''Dichanthelium acuminatum'' * Parry's oatgrass, ''Danthonia parryi'' * Patterson's bluegrass, ''Poa abbreviata ssp. pattersonii'' * Perennial ryegrass, ''Lolium perenne'' * Persian ryegrass, ''Lolium persicum'' * Pineforest needlegrass, ''Stipa pinetorum'' *

Pinegrass ''Calamagrostis rubescens'' is a species of grass known by the common name pinegrass. Distribution It is native to western North America, including Canada from British Columbia to Manitoba and the United States from California to Colorado. It ca ...

, ''Calamagrostis rubescens'' * Plains muhly, ''Muhlenbergia cuspidata'' * Plains reedgrass, ''Calamagrostis montanensis'' * Plains rough fescue, ''Festuca hallii'' * Porcupine needlegrass, ''Stipa spartea'' * Porter's brome, ''Bromus porteri'' *

Poverty oatgrass ''Danthonia spicata'' is a species of grass known by the common name poverty oatgrass, or simply poverty grass. It is native to North America, where it is widespread and common in many areas.Prairie bluegrass, ''Poa arida'' *

Prairie cordgrass ''Sporobolus michauxianus'' is a species of cordgrass known as prairie cordgrass, freshwater cordgrass, tall marshgrass, and sloughgrass. It is native to much of North America, including central and eastern Canada and most of the contiguous Unite ...

, ''Spartina pectinata'' *

Prairie dropseed ''Sporobolus heterolepis'', commonly known as prairie dropseed, is a species of prairie grass native to the tallgrass and mixed grass prairies of central North America from Texas to southern Canada. It is also found further east, to the Atlant ...

, ''Sporobolus heterolepis'' *

Prairie junegrass ''Koeleria macrantha'' is a species of grass known by the common name prairie Junegrass in North America and crested hair-grass in the UK. It is widespread across much of Eurasia and North America. It occurs in many habitat types, especially prai ...

, ''Koeleria macrantha'' * Prairie sandreed, ''Calamovilfa longifolia'' * Prairie wedgegrass, ''Sphenopholis obtusata'' * Proso millet, ''Panicum miliaceum'' * Pullup muhly, ''Muhlenbergia filiformis'' * Pumpelly's brome, ''Bromus inermis ssp. pumpellianus'' * Purple lovegrass, ''Eragrostis pectinacea'' * Purple oat, ''Schizachne purpurascens'' *

Purple reedgrass ''Calamagrostis purpurascens'', is a perennial grass commonly known as purple reedgrass, purple pinegrass, or alpine reedgrass. It grows 30 to tall. Description ''Calamagrostis purpurascens'' is a large, clump forming, perennial grass; growing ...

, ''Calamagrostis purpurascens'' * Purple three-awn grass, ''Aristida purpurea'' *

Quackgrass ''Elymus repens'', commonly known as couch grass, is a very common perennial species of grass native to most of Europe, Asia, the Arctic biome, and northwest Africa. It has been brought into other mild northern climates for forage or erosion cont ...

, ''Elymus repens'' * Rabbit's-foot grass, ''Polypogon monspeliensis'' * Rattlesnake brome, ''Bromus briziformis'' * Red fescue, ''Festuca rubra'' * Redtop, ''Agrostis stolonifera'' *

Reed canary grass ''Phalaris arundinacea'', or reed canary grass, is a tall, perennial bunchgrass that commonly forms extensive single-species stands along the margins of lakes and streams and in wet open areas, with a wide distribution in Europe, Asia, northern ...

, ''Phalaris arundinacea'' *

Rice cutgrass ''Leersia oryzoides'' is a species of grass known by the common name rice cutgrass or just cut-grass. It is a widespread grass native to Europe, Asia, and North America and present in many other regions, such as Australia, as an introduced specie ...

, ''Leersia oryzoides'' * Richardson's needlegrass, ''Stipa richardsonii'' * Rocky Mountain fescue, ''Festuca saximontana'' * Rough barnyard grass, ''Echinochloa muricata'' * Rough bentgrass, ''Agrostis scabra'' * Rough bluegrass, ''Poa trivialis'' * Rough fescue, ''Festuca scabrella'' * Roughleaf ricegrass, ''Oryzopsis asperifolia'' * Russian wild rye, ''Psathyrostachys juncea'' *

Rye brome ''Bromus secalinus'' is a species of bromegrass known as rye brome. The specific epithet ''secalinus'' is Latin, meaning "rye-like". The fruits are hard, rounded glumes that appear superficially similar to the rye grain, which gives the brome i ...

, ''Bromus secalinus'' *

Saltgrass ''Distichlis spicata'' is a species of grass known by several common names, including seashore saltgrass, inland saltgrass, and desert saltgrass. This grass is native to the Americas, where it is widespread. It can be found on other continents a ...

, ''Distichlis spicata'' *

Sand bluestem ''Andropogon hallii'' (sand bluestem, sand hill bluestem, Hall's bluestem, Hall's beardgrass, prairie bluestem, turkey-foot) is a sod-forming perennial species in the grass family, Poaceae. It is a bunchgrass which grows in tufts and can reach 7 ...

, ''Andropogon hallii'' *

Sand dropseed ''Sporobolus cryptandrus'' is a species of grass known as sand dropseed. It is native to North America, where it is widespread in southern Canada, most of the United States, and northern Mexico. Description ''Sporobolus cryptandrus'' is a peren ...

, ''Sporobolus cryptandrus'' * Sand wild rye, ''Leymus flavescens'' *

Sandberg bluegrass ''Poa secunda'' (variously known by the common names of Sandberg bluegrass, alkali bluegrass, big bluegrass, Canby's bluegrass, Nevada bluegrass, one-sided bluegrass, Pacific bluegrass, pine blugrass, slender bluegrass, wild bluegrass, and curly ...

, ''Poa secunda'' * Scribner's panic grass, ''Dichanthelium oligosanthes var. scribnerianum'' * Scribner's wild rye, ''Elymus scribneri'' * Sheathed dropseed, ''Sporobolus vaginiflorus'' *

Sheep fescue ''Festuca ovina'', sheep's fescue or sheep fescue, is a species of grass. It is sometimes confused with hard fescue (''Festuca trachyphylla''). General description It is a perennial plant sometimes found in acidic ground, and in mountain pastur ...

, ''Festuca ovina'' * Short-awn foxtail, ''Alopecurus aequalis'' * Short-leaved bluegrass, ''Poa arnowiae'' * Shortleaf fescue, ''Festuca brachyphylla'' * Showy oniongrass, ''Melica spectabilis'' * Side-oats grama, ''Bouteloua curtipendula'' * Six-weeks grama, ''Bouteloua barbata'' * Six-weeks fescue, ''Vulpia octoflora'' * Slender hairgrass, ''Deschampsia elongata'' * Slender oat, ''Avena barbata'' * Slender wedgegrass, ''Sphenopholis intermedia'' * Slender wheatgrass, ''Elymus trachycaulus'' * Slimstem reedgrass, ''Calamagrostis stricta'' * Small dropseed, ''Sporobolus neglectus'' * Small six-weeks fescue, ''Vulpia microstachys'' * Smallflower fescue, ''Festuca minutiflora'' * Smith's melicgrass, ''Melica smithii'' * Smooth brome, ''Bromus inermis ssp. inermis'' * Smooth crabgrass, ''Digitaria ischaemum'' * Soft brome, ''Bromus hordeaceus'' * Spike bentgrass, ''Agrostis exarata'' * Spike fescue, ''Leucopoa kingii'' * Spike muhly, ''Muhlenbergia glomerata'' * Spike-oat, ''Helictotrichon hookeri'' * Spiked brome, ''Bromus racemosus'' * Sprangletop, ''Leptochloa fusca'' * Sprangletop, ''Scolochloa festucacea'' * Spreading alkali grass, ''Puccinellia distans'' * Stinkgrass, ''Eragrostis cilianensis'' * Stout wood reed-grass, ''Cinna arundinacea'' * Sweet vernalgrass, ''Anthoxanthum odoratum'' * Switchgrass, ''Panicum virgatum'' * Tall dropseed, ''Sporobolus compositus'' * Tall fescue, ''Festuca arundinacea'' * Tall mannagrass, ''Glyceria elata'' * Tall oatgrass, ''Arrhenatherum elatius'' * Tall trisetum, ''Trisetum cernuum'' * Teal lovegrass, ''Eragrostis hypnoides'' * Thickspike wheatgrass, ''Elymus lanceolatus'' * Thurber's bentgrass, ''Agrostis thurberiana'' *

Thurber's needlegrass ''Achnatherum thurberianum'' is a species of grass known by the common name Thurber's needlegrass. It is native to the western United States, where it occurs from Washington to California and east to Montana and Wyoming.Archer, Amy J. 2000'' ...

, ''Stipa thurberiana'' * Timber oatgrass, ''Danthonia intermedia'' * Tufted foxtail, ''Alopecurus carolinianus'' *

Tufted hairgrass ''Deschampsia cespitosa'', commonly known as tufted hairgrass or tussock grass, is a perennial tufted plant in the grass family Poaceae. Distribution of this species is widespread including the eastern and western coasts of North America, parts o ...

, ''Deschampsia cespitosa'' * Tumble grass, ''Schedonnardus paniculatus'' * Variable bentgrass, ''Agrostis variabilis'' * Virginia wild rye, ''Elymus virginicus'' *

Western fescue ''Festuca occidentalis'' is a species of grass known as western fescue. It is native to much of the northern half of North America and is most widely distributed in the west. It is most often found in forest and woodland habitat. The specific epi ...

, ''Festuca occidentalis'' * Western needlegrass, ''Stipa occidentalis'' *

Western porcupine grass ''Hesperostipa spartea'', formerly ''Stipa spartea'', is a species of grass known by the common names porcupine grass, western porcupine grass, short-awn porcupine grass, porcupine needlegrass, and big needlegrass. It is native to North America ...

, ''Stipa curtiseta'' *

Western wheatgrass ''Pascopyrum'' is a monotypic genus of grass containing the sole species ''Pascopyrum smithii'', which is known by the common names western wheatgrass and red-joint wheatgrass, after the red coloration of the nodes. It is native to North America. ...

, ''Pascopyrum smithii'' * Wheeler's bluegrass, ''Poa wheeleri'' *

White bluegrass ''Poa glauca'' is a species of grass known by the common names glaucous bluegrass, glaucous meadow-grass and white bluegrass. It has a circumboreal distribution, occurring throughout the northern regions of the Northern Hemisphere. It is also k ...

, ''Poa glauca'' * Wilcox's panic grass, ''Dichanthelium wilcoxianum'' * Wild oats, ''Avena fatua'' * Wirestem muhly, ''Muhlenbergia mexicana'' * Witch panicgrass, ''Panicum capillare'' * Yellow bluestem, ''Bothriochloa ischaemum'' * Yellow foxtail, ''Setaria pumila''

Greenbriars

Order:

Liliales Liliales is an order of monocotyledonous flowering plants in the Angiosperm Phylogeny Group and Angiosperm Phylogeny Web system, within the lilioid monocots. This order of necessity includes the family Liliaceae. The APG III system (2009) place ...

, family: Smilacaceae * Herbaceous greenbrier, ''Smilax lasioneura''

Horned pondweeds

Order:

, family:

Zannichelliaceae The Potamogetonaceae, commonly referred to as the pondweed family, is an aquatic family of monocotyledonous flowering plants. The roughly 110 known species are divided over six genera. The largest genus in the family by far is ''Potamogeton'', w ...

Horned pondweed ''Zannichellia palustris'', the horned pondweed, is a plant found in fresh to brackish waters in the United States (especially in the Chesapeake Bay), Europe, Asia, Australasia, and South America. It is recognizable by its long, thread like leave ...

, ''Zannichellia palustris''

Irises

Order:

, family: Iridaceae * Idaho blue-eyed-grass, ''Sisyrinchium idahoense'' * Northern blue-eyed-grass, ''Sisyrinchium septentrionale'' * Strict blue-eyed-grass, ''Sisyrinchium montanum'' * Western blue iris, ''Iris missouriensis'' * Western blue-eyed-grass, ''Sisyrinchium halophilum'' * Yellow iris, ''Iris pseudacorus''

Lilies

Order:

, family: Liliaceae * American false-hellebore, ''Veratrum viride'' * Baker mariposa lily, ''Calochortus apiculatus'' *

Beargrass ''Xerophyllum tenax'' is a North American species of plants in the corn lily family. It is known by several common names, including bear grass, soap grass, quip-quip, and Indian basket grass. Ecology ''Xerophyllum tenax'' has flowers with si ...

, ''Xerophyllum tenax'' * Big-pod mariposa lily, ''Calochortus eurycarpus'' * Brandegee's onion, ''Allium brandegeei'' * Bruneau mariposa lily, ''Calochortus bruneaunis'' * California false-hellebore, ''Veratrum californicum'' * Chives, ''Allium schoenoprasum'' *

Chocolate lily Chocolate lily refers to any of a number of flowering plant species: * ''Dichopogon strictus'' (syn. ''Arthropodium strictum''), whose flowers smell of chocolate * ''Fritillaria affinis'', also called rice-root or checker lily, from western North A ...

, ''Fritillaria atropurpurea'' * Clasping twisted-stalk, ''Streptopus amplexifolius'' * Columbia lily, ''Lilium columbianum'' * Columbia onion, ''Allium columbianum'' * Common alpine-lily, ''Lloydia serotina'' *

Common camas ''Camassia quamash'', commonly known as camas, small camas, common camas, common camash or quamash, is a perennial herb. It is native to western North America in large areas of southern Canada and the northwestern United States. Description It ...

, ''Camassia quamash'' * Dwarf onion, ''Allium simillimum'' * Elegant mariposa lily, ''Calochortus elegans'' * False Solomon's-seal, ''Maianthemum racemosum'' * Foothill death camas, ''Zigadenus paniculatus'' * Fringed onion, ''Allium fibrillum'' * Garden asparagus, ''Asparagus officinalis'' * Geyer's bulbil onion, ''Allium geyeri var. tenerum'' * Geyer's onion, ''Allium geyeri'' * Glacier lily, ''Erythronium grandiflorum'' * Green-band mariposa lily, ''Calochortus macrocarpus'' * Gunnison's mariposa lily, ''Calochortus gunnisonii'' * Hooker's fairybells, ''Prosartes hookeri'' * Large-flower triteleia, ''Triteleia grandiflora'' *

Meadow death camas ''Toxicoscordion venenosum'', with the common names death camas and meadow death camas, is a species of flowering plants in the genus '' Toxicoscordion'', of the Melanthiaceae family. It is native to western North America from New Mexico to Sa ...

, ''Zigadenus venenosus'' * Meadow onion, ''Allium canadense'' * Mountain death camas, ''Zigadenus elegans'' * Mountain star-lily, ''Leucocrinum montanum'' * Nodding onion, ''Allium cernuum'' * Nuttall's mariposa lily, ''Calochortus nuttallii'' * Orange daylily, ''Hemerocallis fulva'' * Queencup bead lily, ''Clintonia uniflora'' * Rosy twisted-stalk, ''Streptopus lanceolatus'' * Rough-fruited fairybells, ''Prosartes trachycarpa'' * Short-stem onion, ''Allium brevistylum'' * Small onion, ''Allium parvum'' * Small tofieldia, ''Tofieldia pusilla'' * Starry false Solomon's-seal, ''Maianthemum stellatum'' * Tapertip onion, ''Allium acuminatum'' * Three-leaf false Solomon's-seal, ''Maianthemum trifolium'' * Western false asphodel, ''Triantha occidentalis'' * Western featherbells, ''Stenanthium occidentale'' * Western trillium, ''Trillium ovatum'' * White glacier lily, ''Erythronium grandiflorum var. candidum'' * White wild onion, ''Allium textile'' * Wild lily-of-the-valley, ''Maianthemum canadense'' *

Wood lily ''Lilium philadelphicum'', also known as the wood lily, Philadelphia lily, prairie lily, or western red lily, is a perennial species of lily native to North America. Distribution The plant is widely distributed in much of Canada from British Co ...

, ''Lilium philadelphicum'' * Yellowbells, ''Fritillaria pudica''

Orchids

Order: Orchidales, family: Orchidaceae * Alaska rein orchid, ''Piperia unalascensis'' * Broad-leaved twayblade, ''Neottia convallarioides'' * Clustered lady's-slipper, ''Cypripedium fasciculatum'' * Early coralroot, ''Corallorhiza trifida'' * Eastern helleborine, ''Epipactis helleborine'' * Fairy slipper, ''Calypso bulbosa'' * Giant helleborine, ''Epipactis gigantea'' * Giant rattlesnake-plantain, ''Goodyera oblongifolia'' * Heartleaf twayblade, ''Neottia cordata'' * Hillside rein orchid, ''Piperia elegans'' * Hooded ladies'-tresses, ''Spiranthes romanzoffiana'' * Huron green orchid, ''Platanthera huronensis'' * Hybrid lady's-slipper, ''Cypripedium x columbianum'' * Large roundleaf orchid, ''Platanthera orbiculata'' * Loesel's twayblade, ''Liparis loeselii'' * Long-bract green orchis, ''Coeloglossum viride'' * Mertens' coralroot, ''Corallorhiza mertensiana'' * Mountain lady's-slipper, ''Cypripedium montanum'' * Northern green orchid, ''Platanthera aquilonis'' * Northern rattlesnake-plantain, ''Goodyera repens'' * Northern twayblade, ''Neottia borealis'' * Round-leaved orchis, ''Amerorchis rotundifolia'' * Slender bog orchid, ''Platanthera stricta'' * Small northern bog orchid, ''Platanthera obtusata'' * Small yellow lady's-slipper, ''Cypripedium parviflorum'' * Sparrow's-egg lady's-slipper, ''Cypripedium passerinum'' * Spotted coralroot, ''Corallorhiza maculata'' * Spring coralroot, ''Corallorhiza wisteriana'' * Striped coralroot, ''Corallorhiza striata'' * Ute ladies'-tresses, ''Spiranthes diluvialis'' * Western twayblade, ''Neottia banksiana'' * White bog orchid, ''Platanthera dilatata''

Pod-grasses

Order:

, family:

Scheuchzeriaceae ''Scheuchzeria palustris'' (Rannoch-rush, or pod grass), is a flowering plant in the family Scheuchzeriaceae, in which there is only one species and ''Scheuchzeria'' is the only genus. In the APG II system it is placed in the order Alismatales of ...

* Pod grass, ''Scheuchzeria palustris''

Pondweeds

Order:

, family:

Potamogetonaceae The Potamogetonaceae, commonly referred to as the pondweed family, is an aquatic family of monocotyledonous flowering plants. The roughly 110 known species are divided over six genera. The largest genus in the family by far is ''Potamogeton'', w ...

Blunt-leaved pondweed ''Potamogeton obtusifolius'', known as blunt-leaved pondweed, is an aquatic plant in the genus ''Potamogeton''. It grows mainly in mesotrophic to eutrophic lakes, ponds and ditches, rarely in brackish water. It occurs primarily in Central Europe ...

, ''Potamogeton obtusifolius'' * Curly pondweed, ''Potamogeton crispus'' * Flatleaf pondweed, ''Potamogeton robbinsii'' * Flatstem pondweed, ''Potamogeton compressus'' * Floating pondweed, ''Potamogeton natans'' * Fries' pondweed, ''Potamogeton friesii'' * Grassy pondweed, ''Potamogeton gramineus'' *

Illinois pondweed ''Potamogeton illinoensis'', commonly known as Illinois pondweed or shining pondweed, is an aquatic plant. It provides food and cover for aquatic animals. It is generally not weedy in its native range, but it is a troublesome noxious weed in ...

, ''Potamogeton illinoensis'' * Largeleaf pondweed, ''Potamogeton amplifolius'' * Leafy pondweed, ''Potamogeton foliosus'' * Longleaf pondweed, ''Potamogeton nodosus'' * Northern pondweed, ''Potamogeton alpinus'' * Nuttall's pondweed, ''Potamogeton epihydrus'' *

Richardson's pondweed ''Potamogeton richardsonii'' is a species of aquatic plant known by the common name Richardson's pondweed. It is native to much of northern North America, including all of Canada and the northern and western United States. It grows in water bodie ...

, ''Potamogeton richardsonii'' *

Sago pondweed ''Stuckenia pectinata'' (Synonym (taxonomy), syn. ''Potamogeton pectinatus''), commonly called sago pondweed or fennel pondweed, and sometimes called ribbon weed, is a Cosmopolitan distribution, cosmopolitan water plant species that grows in fres ...

, ''Stuckenia pectinata'' * Sheathed pondweed, ''Stuckenia vaginata'' *

Slender pondweed Slender may refer to: Term * Gracility or slenderness Literature * Abraham Slender, a character in William Shakespeare's '' The Merry Wives of Winsor'' Slender Man *Slender Man, a fictional supernatural character *Slender Man stabbing, an at ...

, ''Stuckenia filiformis'' *

, ''Potamogeton pusillus'' * Straightleaf pondweed, ''Potamogeton strictifolius'' * Water-thread pondweed, ''Potamogeton diversifolius'' *

White-stem pondweed ''Potamogeton praelongus'', commonly known as whitestem pondweed in North America and long-stalked pondweed in Britain, is a large, perennial aquatic plant in the family Potamogetonaceae. It is widely distributed in lakes and rivers in the nort ...

, ''Potamogeton praelongus''

Rushes

Order:

Juncales Juncales is an order of flowering plants. In the Engler system (update, of 1964) and in the Cronquist system (of 1981, which placed this order in subclass Commelinidae) it is circumscribed as: * order Juncales *: family Juncaceae *: family Thur ...

, family: Juncaceae *

Baltic rush ''Juncus balticus'' is a species of rush known by the common name Baltic rush. It is a perennial flowering plant in the family Juncaceae. This plant can reach a height of about 75 cm. It is native to maritime areas of northern Britain, the ...

, ''Juncus balticus'' * Black-grass rush, ''Juncus gerardii'' * Chestnut rush, ''Juncus castaneus'' *

Colorado rush Colorado Rush may refer to: * Colorado Rush, a youth and adult soccer club based in Littleton, Colorado and owned by Rush Soccer ** Flatirons Rush SC, a semi-professional soccer team formerly known as the Colorado Rush SC that competes in USL Leagu ...

, ''Juncus confusus'' * Common woodrush, ''Luzula multiflora'' * Coville's rush, ''Juncus covillei'' * Curved woodrush, ''Luzula arcuata'' * Drummond's rush, ''Juncus drummondii'' * Dudley's rush, ''Juncus dudleyi'' * Flattened rush, ''Juncus compressus'' * Forked woodrush, ''Luzula divaricata'' * Hall's rush, ''Juncus hallii'' * Inland rush, ''Juncus interior'' * Jointed rush, ''Juncus articulatus'' * Knotted rush, ''Juncus nodosus'' * Long-styled rush, ''Juncus longistylis'' * Mertens' rush, ''Juncus mertensianus'' * Nevada rush, ''Juncus nevadensis'' * Northern green rush, ''Juncus alpinoarticulatus'' * Parry's rush, ''Juncus parryi'' * Piper's woodrush, ''Luzula piperi'' * Regel's rush, ''Juncus regelii'' *

Slender rush ''Juncus tenuis'', the slender rush, is a clump-forming, round-stemmed perennial in the Juncaceae (rush family). Slender rush grows to be between 15 and 60 cm tall. Generally considered a weed, it is rarely sold by retailers as a household ...

, ''Juncus tenuis'' * Small-flower woodrush, ''Luzula parviflora'' * Smooth woodrush, ''Luzula hitchcockii'' *

Soft rush ''Juncus effusus'', with the common names common rush or soft rush, is a perennial herbaceous flowering plant species in the rush family Juncaceae. In North America, the common name soft rush also refers to '' Juncus interior''. Distribution '' ...

, ''Juncus effusus'' * Spiked woodrush, ''Luzula spicata'' * Straight-leaf rush, ''Juncus orthophyllus'' * Tapered rush, ''Juncus acuminatus'' * Thread rush, ''Juncus filiformis'' * Three-flowered rush, ''Juncus albescens'' * Three-flowered rush, ''Juncus triglumis'' * Three-stamened rush, ''Juncus ensifolius'' *

Toad rush ''Juncus bufonius'', known commonly as toad rush, is a widespread flowering plant species complex in the rush family Juncaceae. Distribution Its native range is circumpolar throughout tropical, subtropical, subarctic, and temperate climate areas ...

, ''Juncus bufonius'' * Torrey's rush, ''Juncus torreyi'' * Two-flowered rush, ''Juncus biglumis'' * Vasey's rush, ''Juncus vaseyi''

Sedges

Order:

, family:

Cyperaceae The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus ''Carex'' w ...

* Alpine nerved sedge, ''Carex neurophora'' * Alpine sedge, ''Carex glacialis'' * Arctic hare's-foot sedge, ''Carex lachenalii'' * Awl-fruit sedge, ''Carex stipata'' * Awned sedge, ''Carex atherodes'' * Beaked spikerush, ''Eleocharis rostellata'' * Bearded flatsedge, ''Cyperus squarrosus'' * Beautiful sedge, ''Carex concinna'' * Bebb's sedge, ''Carex bebbii'' * Big-leaf sedge, ''Carex amplifolia'' * Black alpine sedge, ''Carex nigricans'' * Black and purple sedge, ''Carex luzulina var. atropurpurea'' * Black-and-white scale sedge, ''Carex albonigra'' * Black-girdle bulrush, ''Scirpus atrocinctus'' * Blackened sedge, ''Carex atrosquama'' * Blackroot sedge, ''Carex elynoides'' * Blunt sedge, ''Carex obtusata'' * Bolander's sedge, ''Carex bolanderi'' *

Bristly sedge ''Carex comosa'' is a species of sedge known as longhair sedge and bristly sedge. It is native to North America, where it grows in western and eastern regions of Canada and the United States, and parts of Mexico. It grows in wet places, including ...

, ''Carex comosa'' * Bristly-stalk sedge, ''Carex leptalea'' * Bronze sedge, ''Carex aenea'' * Brownish sedge, ''Carex brunnescens'' * Bulrush sedge, ''Carex scirpoidea'' * Buxbaum's sedge, ''Carex buxbaumii'' * Capitate sedge, ''Carex capitata'' * Clustered field sedge, ''Carex praegracilis'' * Coastal sand sedge, ''Carex incurviformis'' * Columbian sedge, ''Carex aperta'' * Common beaked sedge, ''Carex utriculata'' * Copper-scale sedge, ''Carex chalciolepis'' * Copycat sedge, ''Carex simulata'' * Cordilleran sedge, ''Carex cordillerana'' * Crawe's sedge, ''Carex crawei'' * Crawford's sedge, ''Carex crawfordii'' * Creeping sedge, ''Carex chordorrhiza'' * Creeping spikerush, ''Eleocharis palustris'' * Cusick's sedge, ''Carex cusickii'' * Delicate spikerush, ''Eleocharis bella'' * Different-nerve sedge, ''Carex epapillosa'' * Douglas' sedge, ''Carex douglasii'' * Drummond's halfchaff sedge, ''Lipocarpha drummondii'' * Dry-spike sedge, ''Carex foenea'' * Dusky-seed sedge, ''Carex pelocarpa'' * Ebony sedge, ''Carex ebenea'' * Engelmann's sedge, ''Carex engelmannii'' * Falkland Island sedge, ''Carex macloviana'' * Fescue sedge, ''Carex brevior'' * Few-flower spikerush, ''Eleocharis quinqueflora'' * Few-seeded bog sedge, ''Carex microglochin'' * Fox sedge, ''Carex vulpinoidea'' * Geyer's sedge, ''Carex geyeri'' * Glaucous beaked sedge, ''Carex rostrata'' * Golden-fruit sedge, ''Carex aurea'' * Goose-grass sedge, ''Carex lenticularis var. dolia'' * Goosegrass sedge, ''Carex eleusinoides'' * Green-keeled cottongrass, ''Eriophorum viridicarinatum'' * Hair-like sedge, ''Carex capillaris'' * Hall's sedge, ''Carex hallii'' *

Hardstem bulrush ''Schoenoplectus acutus'' ( syn. ''Scirpus acutus, Schoenoplectus lacustris, Scirpus lacustris'' subsp. ''acutus''), called tule , common tule, hardstem tule, tule rush, hardstem bulrush, or viscid bulrush, is a giant species of sedge in the pl ...

, ''Schoenoplectus acutus'' * Hayden's sedge, ''Carex haydeniana'' * Hoary sedge, ''Carex canescens'' * Holm's Rocky Mountain sedge, ''Carex scopulorum'' * Hood's sedge, ''Carex hoodii'' * Hudson's bay bulrush, ''Trichophorum alpinum'' * Idaho sedge, ''Carex idahoa'' * Inflated sedge, ''Carex vesicaria'' * Inland sedge, ''Carex interior'' * Intermediate sedge, ''Carex media'' * Ivory sedge, ''Carex eburnea'' * Jointed-spike sedge, ''Carex athrostachya'' * Jones' sedge, ''Carex jonesii'' * Lake-bank sedge, ''Carex lacustris'' * Large-fruited kobresia, ''Kobresia sibirica'' * Least spikerush, ''Eleocharis acicularis'' * Lesser panicled sedge, ''Carex diandra'' * Liddon sedge, ''Carex petasata'' * Little green sedge, ''Carex viridula'' * Little prickly sedge, ''Carex echinata'' * Long-stolon sedge, ''Carex inops'' * Longbeak sedge, ''Carex sprengelii'' * Many-headed sedge, ''Carex sychnocephala'' * Many-ribbed sedge, ''Carex multicostata'' * Mertens' sedge, ''Carex mertensii'' * Mountain hare sedge, ''Carex phaeocephala'' * Mountain sedge, ''Carex scopulorum var. bracteosa'' * Mt. Shasta sedge, ''Carex straminiformis'' *

Mud sedge ''Carex limosa'' is a species of sedge known as bog-sedge, mud sedge, and shore sedge. Distribution This sedge is an aquatic or shore plant which can most often be found in peat bogs in mountains. It is widely distributed across North Ameri ...

, ''Carex limosa'' * Nard sedge, ''Carex nardina'' * Narrow sedge, ''Carex angustata'' * Narrowleaf cottongrass, ''Eriophorum angustifolium'' * Nebraska sedge, ''Carex nebrascensis'' * Needleleaf sedge, ''Carex duriuscula'' * Nelson's sedge, ''Carex nelsonii'' * Nevada bulrush, ''Scirpus nevadensis'' * Northern bog sedge, ''Carex gynocrates'' * Northern clustered sedge, ''Carex arcta'' * Northern meadow sedge, ''Carex praticola'' * Northern singlespike sedge, ''Carex scirpoidea ssp. scirpoidea'' * Northwestern sedge, ''Carex concinnoides'' * Northwestern showy sedge, ''Carex spectabilis'' * Ovate spikerush, ''Eleocharis ovata'' * Pacific kobresia, ''Kobresia myosuroides'' * Pale bulrush, ''Scirpus pallidus'' * Pale sedge, ''Carex livida'' * Pale spikerush, ''Eleocharis flavescens'' * Palish sedge, ''Carex pallescens'' * Parry's sedge, ''Carex parryana'' * Payson's sedge, ''Carex paysonis'' * Pendulous bulrush, ''Scirpus pendulus'' * Pointed broom sedge, ''Carex scoparia'' * Poor sedge, ''Carex magellanica'' * Porcupine sedge, ''Carex hystericina'' * Prairie sedge, ''Carex prairea'' * Pregnant sedge, ''Carex gravida'' * Presl sedge, ''Carex preslii'' * Purple spikerush, ''Eleocharis atropurpurea'' * Pyrenean sedge, ''Carex pyrenaica'' * Raynolds' sedge, ''Carex raynoldsii'' * Red-root flatsedge, ''Cyperus erythrorhizos'' * Retrorse sedge, ''Carex retrorsa'' *

River bulrush ''Bolboschoenus fluviatilis'', the river bulrush, is a species of flowering plant in the sedge family, Cyperaceae. Its range includes Australia, New Zealand, New Caledonia, Canada, the United States, and northeastern Mexico. ''B. fluviatilis'' an ...

, ''Schoenoplectus fluviatilis'' * Rock sedge, ''Carex petricosa'' * Rock sedge, ''Carex rupestris'' * Rocky Mountain sedge, ''Carex backii'' * Rocky Mountain sedge, ''Carex saximontana'' * Rolland's bulrush, ''Trichophorum pumilum'' * Russet cottongrass, ''Eriophorum chamissonis'' * Russet sedge, ''Carex saxatilis'' * Rusty sedge, ''Carex subfusca'' * Saltmarsh bulrush, ''Bolboschoenus maritimus'' * Sartwell's sedge, ''Carex sartwellii'' * Saw-leaved sedge, ''Carex scopulorum var. prionophylla'' * Scheuchzer cottongrass, ''Eriophorum scheuchzeri'' * Schweinitz' flatsedge, ''Cyperus schweinitzii'' * Sedge (unnamed), ''Carex diluta'' * Sheathed cottongrass, ''Eriophorum callitrix'' * Sheathed sedge, ''Carex vaginata'' * Shining flatsedge, ''Cyperus bipartitus'' * Shore sedge, ''Carex lenticularis'' * Shore sedge, ''Carex lenticularis var. lipocarpa'' * Short sedge, ''Carex rossii'' * Short-leaf sedge, ''Carex fuliginosa'' * Short-pointed flatsedge, ''Cyperus acuminatus'' * Short-scale sedge, ''Carex deweyana'' * Short-scaled sedge, ''Carex leptopoda'' * Short-stalk sedge, ''Carex podocarpa'' * Short-stemmed sedge, ''Carex deflexa'' * Sierran hare sedge, ''Carex leporinella'' * Simple kobresia, ''Kobresia simpliciuscula'' * Slender bulrush, ''Schoenoplectus heterochaetus'' * Slender cottongrass, ''Eriophorum gracile'' * Slender sedge, ''Carex lasiocarpa'' * Slender spikerush, ''Eleocharis elliptica'' * Small-fruit bulrush, ''Scirpus microcarpus'' * Small-head sedge, ''Carex illota'' * Small-wing sedge, ''Carex microptera'' * Small-winged sedge, ''Carex stenoptila'' * Smooth-cone sedge, ''Carex laeviconica'' * Smooth-stem sedge, ''Carex laeviculmis'' * Soft sedge, ''Carex tenera'' * Softleaf sedge, ''Carex disperma'' * Softstem bulrush, ''Schoenoplectus tabernaemontani'' * Steven's Scandinavian sedge, ''Carex stevenii'' * Teacher's sedge, ''Carex praeceptorum'' * Thick-head sedge, ''Carex pachystachya'' * Thin-flowered sedge, ''Carex tenuiflora'' * Thread-leaved sedge, ''Carex filifolia'' * Threadleaf beakseed, ''Bulbostylis capillaris'' * Three-square bulrush, ''Schoenoplectus americanus'' * Three-square bulrush, ''Schoenoplectus pungens'' * Threeway sedge, ''Dulichium arundinaceum'' * Torrey's sedge, ''Carex torreyi'' * Tufted club-rush, ''Trichophorum cespitosum'' * Valley sedge, ''Carex vallicola'' * Water bulrush, ''Schoenoplectus subterminalis'' *

Water sedge ''Carex aquatilis'' is a species of sedge known as water sedge and leafy tussock sedge. It has a circumboreal distribution, occurring throughout the northern reaches of the Northern Hemisphere. It grows in many types of mountainous and arctic hab ...

, ''Carex aquatilis'' * Western sedge, ''Carex occidentalis'' * Western single-spike sedge, ''Carex scirpoidea ssp. pseudoscirpoidea'' * White-scaled sedge, ''Carex xerantica'' * Woodrush sedge, ''Carex luzulina'' * Woodrush sedge, ''Carex luzulina var. ablata'' * Woolgrass, ''Scirpus cyperinus'' * Woolgrass bulrush, ''Scirpus atrovirens'' * Woolly sedge, ''Carex pellita'' * Yellow sedge, ''Carex flava''

Spiderwort family

Order: Commelinales, family: Commelinaceae * Bracted spiderwort, ''Tradescantia bracteata'' * Prairie spiderwort, ''Tradescantia occidentalis''

Sweetflag / calamus family

Order: Arales, family: Acoraceae * Sweetflag, ''Acorus americanus''

Water-hyacinth family

Order:

, family: Pontederiaceae * Water star-grass, ''Heteranthera dubia''

Water-nymph family

Order:

, family: Najadaceae * Guadalupe water-nymph, ''Najas guadalupensis'' *

Slender naiad ''Najas flexilis'' is an aquatic annual plant native to parts of North America and Europe. It is native to northern and central Europe from Norway to Ireland to Switzerland, and from there across Russia (including Siberia). It is also considered ...

, ''Najas flexilis''

Water-plantains

Order: Alismatales, family: Alismataceae * Common arrowhead, ''Sagittaria latifolia'' * Narrow-leaf water-plantain, ''Alisma gramineum'' * Northern arrowhead, ''Sagittaria cuneata'' * Northern water-plantain, ''Alisma triviale''

Waterweeds

Order:

Hydrocharitales {{Unreferenced, date=December 2009 Hydrocharitales is a botanical name of an order of flowering plants. A well-known system that used this name is the Cronquist system (1981), for an order in subclass Alismatidae, with this circumscription: * o ...

, family: Hydrocharitaceae * Broad waterweed, ''Elodea canadensis'' * Long-sheath waterweed, ''Elodea bifoliata'' * Nuttall waterweed, ''Elodea nuttallii''

Yuccas / agaves

Order:

, family:

Agavaceae Agavoideae is a subfamily of monocot flowering plants in the family Asparagaceae, order Asparagales. It has previously been treated as a separate family, Agavaceae. The group includes many well-known desert and dry-zone types, such as the agav ...

* Small soapweed yucca, ''Yucca glauca''

Notes

{{Montana Monocotlydeons Montana .Montana

Arrow-grass family

Arum family

Bur-reeds

Cattails

Ditch-grass family

Duckweeds

Flowering-rush family

Grasses

Greenbriars

Horned pondweeds

Irises

Lilies

Orchids

Pod-grasses

Pondweeds

Rushes

Sedges

Spiderwort family

Sweetflag / calamus family

Water-hyacinth family

Water-nymph family

Water-plantains

Waterweeds

Yuccas / agaves

Further reading

See also

Notes