Elymus canadensis, commonly known as Canada wild rye or Canadian wildrye, is a species of wild rye native to much of North America. It is most abundant in the central plains and Great Plains. It grows in a number of ecosystems, including woodlands, savannas, dunes, and prairies, sometimes in areas that have been disturbed.
Elymus elymoides is a species of wild rye known by the common name squirreltail. This grass is native to most of North America west of the Mississippi River and occurs in a number of ecosystems, from the alpine zone to desert sage scrub to valley grassland.
Elymus glaucus is a species of grass known as blue wild rye or blue wildrye This grass is native to North America from Alaska to New York to northern Mexico. It is a common and widespread species of wild rye.
Stipa parishii, formerly classified as Achnatherum parishii, is a species of grass known by the common name Parish's needlegrass. The Jepson Manual 2nd edition (2012) reclassified the plant as Stipa parishii var. parishii.
Danthonia unispicata is a species of grass known by the common name onespike oatgrass, or onespike danthonia.
Elymus multisetus is a species of wild rye known by the common name big squirreltail.
Elymus scribneri is a species of wild rye known by the common names spreading wheatgrass and Scribner's wheatgrass. It is native to much of the western United States and parts of central Canada where it grows in several types of habitat including alpine mountain peaks.
Elymus sierrae is a species of wild rye known by the common name Sierra wild rye. It is endemic to the High Sierra Nevada in California and far western Nevada, where it grows in coniferous forest and other mountain habitat generally above 2,200 metres (7,200 ft) in elevation.
Elymus stebbinsii is a species of wild rye known by the common name Parish wheatgrass. It is endemic to California, where it grows in the forests and chaparral of many of the coastal and inland mountain ranges. It is a perennial grass growing up to 1.2 meters tall. The inflorescence is a narrow, linear series of single-spikelet nodes up to 25 centimeters long. Each spikelet is up to 2 centimeters long with a short awn of just a few millimeters.
Elymus trachycaulus is a species of wild rye known by the common name slender wheatgrass. It is native to much of North America. It grows in widely varied habitats from northern Canada to Mexico, but is absent from most of the southeastern United States.
Leymus triticoides, with the common names creeping wild rye and beardless wild rye, is a species of wild rye. It is native to western North America from British Columbia to California and Texas.
Muhlenbergia porteri is a species of grass known by the common names bush muhly and Porter's muhly.
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.
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.
Elymus lanceolatus is a species of grass known by the common names thickspike wheatgrass and streamside wheatgrass. It is native to North America, where it is widespread and abundant in much of Canada and the western and central United States. There are two subspecies, subsp. lanceolatus occurring throughout the species' range and subsp. psammophilus occurring in the Great Lakes region.
Leymus ambiguus is a species of grass known by the common names Colorado wildrye and Rocky Mountain wildrye. It is native to the Rocky Mountains of the United States, growing mainly on rocky hillsides on the eastern slopes of the mountains in Colorado and New Mexico; it has also been reported from Utah. It is a climax species on the dry grasslands of the Colorado Front Range.
Leymus innovatus is a species of grass known as downy ryegrass, boreal wildrye, hairy wildrye, fuzzyspike wildrye, northern wildrye, and northwestern wildrye. It is native to northern North America from Alaska to eastern Canada and south to Colorado.
Leymus salina is a species of grass known as Salina wildrye, Salina Pass wild rye, and saline wildrye. It is native to the western United States and is named for its type locality: Salina Pass, Utah.
Leymus angustus is a species of grass known by the common name Altai wildrye. It is native to Asia and Europe and it is cultivated elsewhere as a pasture grass, especially in Canada.
Brachiaria mutica is a species of grass known by the common names para grass, buffalo grass, Mauritius signal grass, pasto pare, malojilla, gramalote, parana, Carib grass, and Scotch grass. Despite its common name California grass, it does not occur in California; it is native to northern and central Africa and parts of the Middle East, where it is cultivated for fodder. It was introduced elsewhere and it is now cultivated throughout tropical regions of the world for this purpose.
Flowering
Close-up of the spikelets
