Species Details

Bouteloua trifida

three-awned grama

Download Report Calflora eFlora CCH CalPhotos

Classification

Scientific Name: Bouteloua trifida Thurb.
Common Name: three-awned grama
Family:	Poaceae
Element Code:	PMPOA100L0
USDA Plants Symbol:	BOTR2
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G4G5
State Rank:	S3
Other Status:	SB_CalBG/RSABG
CRPR Changes: changed from 2.3 to 2B.3 on 2013-06-12
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial herb

Blooming Period: (Apr)May-Sep

Elevation:
700 - 2000 meters
2295 - 6560 feet

General Habitats:

Mojavean desert scrub (carbonate, rocky)

Microhabitat Details:

Microhabitat:

Notes

Notes: See Proceedings of the American Academy of Arts and Sciences 18:177 (1883) for original description, and Annals of the Missouri Botanical Garden 66(3):399-400 (1979) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	2
	Total EOs	% of EOs
EOs with Threat Listed:	1	5 %
Mining	1	4%
ORV activity	1	4%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					21
A	B	C	D	X	U
1	2	0	0	0	18

Occurrence Status:
Historical >20 Years	14
Recent <=20 Years	7

Presence:
Presumed Extant	21
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), California (CA), Colorado (CO), Nevada (NV), New Mexico (NM), Sonora, Mexico (SO), Texas (TX), Utah (UT)

California Counties and Islands: Name (Code)
Inyo (INY), San Bernardino (SBD)

Quads: Name (Quad Code)
Blackwater Mine (3511577), Clark Mtn. (3511555), East of Ryan (3611635), Echo Canyon (3611646), Fountain Peak (3411585), Horse Thief Springs (3511578), Ivanpah (3511533), Ivanpah Lake (3511554), Kelso (3511516), Kelso Dunes (3411586), Mesquite Lake (3511565), Mesquite Mountains (3511566), Mohawk Spring (3411447), North of Tecopa Pass (3511681), Ryan (3611636), State Line Pass (3511564), West of Shenandoah Peak (3511576), Whipple Mts. SW (3411434), Whipple Wash (3411433)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory