Taxon Report

Bouteloua eriopoda (Torr.) Torr.

black grama

Print Report

Taxon Summary

Bouteloua eriopoda, commonly known as black grama, is a perennial stoloniferous herb in the Poaceae that is found in California and elsewhere. It occurs within Joshua tree "woodland", and Pinyon and juniper woodland, growing at elevations from 900 to 1900 meters. Bouteloua eriopoda is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification


Scientific Name:	Bouteloua eriopoda (Torr.) Torr.
Common Name:	black grama
Family:	Poaceae
Element Code:	PMPOA10080
USDA Plants Symbol:	BOER4
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial stoloniferous herb
Blooming Period: May-Aug	May-Aug
Elevation:	900-1900 (2955-6235)
General Habitats:	Joshua tree "woodland", Pinyon and juniper woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G5
State Rank:	S4
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: False
California Counties and Islands: Name (Code)
San Bernardino (SBD)
Quads: Name (Quad Code)
Castle Peaks (3511532), Cave Mountain (3511613), Cima Dome (3511535), Clark Mtn. (3511555), Columbia Mtn. (3511514), Crescent Peak (3511542), Hackberry Mountain (3511512), Hart Peak (3511531), Ivanpah (3511533), Joshua (3511534), Mescal Range (3511545), Mesquite Mountains (3511566), Mid Hills (3511524), Mineral Hill (3511544), Pinto Valley (3511523), Solomons Knob (3511547), Valley Wells (3511546)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes



Threatened by grazing. See Report of the Pacific Railroad Expedition 4(5):155 (1856) for revised nomenclature, and Annals of the Missouri Botanical Garden 66(3):397-398 (1979) for taxonomic treatment.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 10 February 2025].