Warm-season grasses of North America

Andropogon virginicus is a species of grass known by several common names, including broomsedge bluestem, yellowsedge bluestem and (in Australia, because it was introduced to that country after being used as packaging for bottles of American whiskey) whiskey grass. It is native to the southeastern United States and as far north as the Great Lakes. It is known as an introduced species in California and Hawaii, where it is weedy.

Bouteloua radicosa, colloquially known as purple grama, is a grass species in the grama genus native to the southwestern United States and northern Mexico.

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.

Bouteloua gracilis, the blue grama, is a long-lived, warm-season (C4) perennial grass, native to North America.

Panicum virgatum, commonly known as switchgrass, is a perennial warm season bunchgrass native to North America, where it occurs naturally from 55°N latitude in Canada southwards into the United States and Mexico. Switchgrass is one of the dominant species of the central North American tallgrass prairie and can be found in remnant prairies, in native grass pastures, and naturalized along roadsides. It is used primarily for soil conservation, forage production, game cover, as an ornamental grass, in phytoremediation projects, fiber, electricity, heat production, for biosequestration of atmospheric carbon dioxide, and more recently as a biomass crop for the production of ethanol and butanol.

Eragrostis secundiflora (syn. Eragrostis oxylepis), red lovegrass, is a species of flowering plant in the family Poaceae, native to the central and southern United States, Mexico, and northern South America. A perennial reaching at most 70 cm (28 in), it is found in prairies and open woodlands, typically in sandy soils. Its seeds are considerably larger than other species of Eragrostis.

Bouteloua simplex, colloquially known as matted grama or mat grama, is a grass species in the grama genus native to much of the Americas.

Bouteloua parryi, colloquially known as Parry's grama, is a grass species in the grama genus native to the southwestern United States and northern Mexico.

Bouteloua repens, colloquially known as slender grama, is a grass species in the grama genus native to the southwestern United States and northern Mexico.

Bouteloua eludens, colloquially known as Santa Rita grama or sometimes Santa Rita Mountain grama, is a grass species in the grama genus native to southern Arizona in the United States and northern Sonora in Mexico.