| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Poaceae | Bouteloua aristidoides | Three-awn Grama, Needle Grama | Dry prairies and loamy alluvial areas; eastwards on ballast. | C. and s. Texas west to California south into Mexico. |  (c) Berger, Matt - CC-BY |
| Poaceae | Bouteloua barbata var. barbata | Sixweeks Grama | Dry grasslands in sandy soils, disturbed areas. | Kansas to California, south to e. and s. Texas, New Mexico, Arizona, and Mexico; South America. |  (c) Carnahan, Sue - CC-BY |
| Poaceae | Bouteloua chondrosioides | Sprucetop Grama | Prairies. | C. Texas, w. Texas, and s. Arizona south into Mexico. |  (c) Carnahan, Sue - CC-BY |
| Poaceae | Bouteloua curtipendula var. caespitosa | Side-oats Grama | Loose, calcareous soils. | Oklahoma, Colorado, Utah, and California south to s. Texas, New Mexico, Arizona, and Mexico (to Argentina). |  (c) Holt, Sune - CC-BY-NC |
| Poaceae | Bouteloua curtipendula var. curtipendula | Side-oats Grama | Prairies, dry rocky slopes and bluffs over calcareous rocks (such as limestone, dolomite, or calcareous shale) or ultramafic rocks (such as serpentine or metabasalt), limestone glades. | S. Connecticut west to Montana, south to Virginia, e. Tennessee, nw. Georgia, Alabama, Panhandle Florida (Gadsden County), Texas, Arizona, and California; also in Central and South America. The older literature refers to B. curtipendula as introduced in South Carolina, but the single specimen documenting its occurrence there appears to be from experimental plantings at Clemson University; there is apparently no evidence of its establishment there. B. curtipendula is now sometimes included in seed mixes, and appears as a waif or short-term introduction, including in the Piedmont of South Carolina (K. Bradley, pers.comm., 2020). B. curtipendula occurs on serpentine in the Piedmont of Georgia (J. Allison, pers. comm.). |  (c) Campos, Aidan |
| Poaceae | Bouteloua dactyloides | Buffalo Grass | Prairies, lawns, disturbed areas. | Minnesota, Manitoba, and Alberta south to w. Louisiana, Texas, New Mexico, Arizona, and widespread in Mexico. |  (c) Campos, Aidan |
| Poaceae | Bouteloua dimorpha | Acapulco Grass | Cultivated as a turf grass, roadsides, disturbed areas. | Native of Mexico. |  (c) Oberg, Bodo Nuñez - CC-BY-NC |
| Poaceae | Bouteloua eriopoda | Black Grama | Dry rocky slopes. | Kansas, Colorado, Utah, and s. California south to c. Texas, New Mexico, Arizona, and widespread in Mexico (Baja California, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Tamaulipas, Zacatecas). |  (c) Loon, Chloe and Trevor Van - CC-BY |
| Poaceae | Bouteloua gracilis | Blue Grama | Prairies, eastward in disturbed areas. | Ontario west to British Columbia, south through c. and w. United States into Mexico (where widespread). Reported for South Carolina (Gould 1979), but this is from a planting at an agricultural experiment station. |  (c) Sorrie, Bruce A. - CC-BY |
| Poaceae | Bouteloua hirsuta | Hairy Grama | Maritime grasslands (FL), pine rocklands (FL), prairies and dry grasslands (TX, OK), xeric longleaf pine sandhills (GA), disturbed areas. | Wisconsin, Minnesota, North Dakota, Wyoming, Nevada and s. California south to sw. Louisiana, Texas, New Mexico, and Arizona and south into Mexico; disjunct in peninsular Florida and in sw. Georgia. |  (c) Campos, Aidan |
| Poaceae | Bouteloua pectinata | Tall Grama | Limestone outcrops. | Oklahoma south to s. Texas |  (c) Jim - CC0 |
| Poaceae | Bouteloua repens | Slender Grama | Prairies and open brushland; or eastwards in disturbed areas. | Oklahoma, New Mexico, and Arizona south through Texas to Mexico (where widespread) and n. South America; West Indies. |  (c) Romero, Abraham Sánchez - CC-BY |
| Poaceae | Bouteloua rigidiseta | Texas Grama, Mesquite Grass | Prairies, roadsides, disturbed areas. | Sw. Arkansas, Oklahoma, and e. New Mexico south to w. Louisiana, Texas, and Mexico (Chihuahua, Coahuila, Nuevo León, Sonora, Tamaulipas). |  (c) Campos, Aidan |
| Poaceae | Bouteloua trifida | Red Grama | Dry grasslands and rocky slopes. | Texas, New Mexico, Utah, and California south to Mexico (where widespread). |  (c) Loon, Chloe and Trevor Van - CC-BY |
| Poaceae | Bouteloua uniflora | One-flower Grama, Nealley's Grama | Rocky calcareous soils. | Texas south to Mexico (where widespread). |  (c) Smith, Jake - CC-BY-NC, permission granted to NCBG |