Nassella pulchra, basionym Stipa pulchra, is a species of grass known by the common names purple needlegrass and purple tussockgrass. It is native to the U.S. state of California, where it occurs throughout the coastal hills, valleys, and mountain ranges, as well as the Sacramento Valley and parts of the Sierra Nevada foothills, and Baja California.
Eragrostis cilianensis is a species of grass known by several common names, including stinkgrass, candy grass, and gray lovegrass.
Achnatherum pinetorum is a species of grass known by the common names pinewoods needlegrass and pine needlegrass. It is native to most of the western United States from California to Montana to New Mexico, where it grows in woodland and forest in rocky mountainous areas.
Aristida oligantha is a species of grass known by the common names prairie threeawn and oldfield threeawn.
Agrostis elliottiana is a species of grass known by the common name Elliott's bent grass.
Chloris virgata is a species of grass known by the common names feather fingergrassfeathery Rhodes-grass and feather windmillgrass.
Muhlenbergia microsperma is a species of grass known by the common name littleseed muhly. It is native to the Americas from the Southwestern United States and California through Central America into Peru and Venezuela.
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, and in Baja California, Mexico.
Muhlenbergia utilis is a species of grass known by the common name aparejograss.
Panicum urvilleanum is a species of grass known by the common names desert panicgrass and silky panicgrass. It is native to the southwestern United States and northern Mexico, where it grows in sandy habitat, including the dunes of the deserts. It is also known in parts of South America.
Paspalum dilatatum is a species of grass known by the common name dallisgrass, Dallas grass, or sticky heads. It is native to Brazil and Argentina, but it is known throughout the world as an introduced species and at times a common weed. Its rapid growth and spreading rhizomes make it an invasive pest in some areas. It is present in the southern half of North America, southern Europe, much of Africa, Australia, New Zealand, and many tropical and subtropical areas.
Paspalum urvillei is a species of grass known by the common name Vasey's grass, or Vaseygrass. It is native to South America, and it is known in parts of North America as an introduced species. It is a noxious weed where it has been introduced in Hawaii and New Caledonia. It grows well in disturbed habitat, often in moist areas. This is a rhizomatous perennial grass which may reach 2 meters tall. The leaves are up to 2.5 centimeters wide and have a large, noticeable ligule. The inflorescence is a spreading or drooping array of up to 20 branches lined with rounded spikelets.
Poa napensis is a rare species of grass known by the common name Napa bluegrass. It is endemic to Napa County, California, where it is known from only two occurrences near Calistoga. It grows in moist, mineral-rich soil around hot springs. The rare grass only occurs on private, unprotected land and depends on water from the hot springs; changes to the local water regime or any other aspects of its specific habitat type would affect the plant. This grass was federally listed as an endangered species in 1997, along with another rare local hot spring endemic, the Calistoga popcornflower.
Puccinellia distans is a species of grass known by the common names weeping alkaligrass and European alkali grass. It is native to Europe and it is present in most of North America, where it is perhaps an introduced species. It grows in moist habitat, usually in areas with saline soils, such as the edges of salted roads. It is a perennial herb producing hollow stems up to 40 to 60 centimeters in maximum height. The inflorescence is a spreading array of branches, the lower ones reflexed. The branches bear several rough-haired spikelets containing flowers.
Puccinellia simplex is a species of grass known by the common names California alkaligrass and western alkali grass. It is native to California, where it grows in mineral springs and other moist habitat with saline soils in the Central Valley, Mojave Desert, and other areas. It is also known from Utah, but occurrences there are probably introduced. This annual grass grows up to about 25 centimeters tall. The inflorescence is generally a linear structure with parallel branches bearing small spikelets.
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.
Sporobolus flexuosus is a species of grass known by the common name mesa dropseed. It is native to western North America, where it can be found in the deserts and woodlands of the Southwestern United States and Northern Mexico.
Ventenata dubia is a species of grass known by the common names North Africa grass and wiregrass. It is native to southern Europe, North Africa and the Middle East. It is becoming well known in North America, where it is an introduced species and a noxious weed of cultivated and disturbed habitat. It is problematic in the Pacific Northwest, where it was first identified in Washington in 1952 and Idaho in 1957. It was found in Utah in 1996. It probably spreads when it gets mixed in with grass seed and is transported and inadvertently planted.
Muhlenbergia racemosa is a species of grass known by the common names green muhly and marsh muhly. It is native to North America, where it is most common in the north-central United States. It also occurs in the western United States and northern Mexico.
Chloris texensis is a species of grass known by the common name Texas windmill grass. It is endemic to Texas in the United States, where it occurs on the coastal prairies.
