Species Details

Mentzelia tricuspis

spiny-hair blazing star

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Classification

Scientific Name: Mentzelia tricuspis A. Gray
Common Name: spiny-hair blazing star
Family:	Loasaceae
Element Code:	PDLOA031T0
USDA Plants Symbol:	METR2
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	2B.1
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S2
Other Status:
CRPR Changes: added to 2.1 on 2010-10-28
Add Date:	2010-10-28
Date Edited:	2022-03-01

Ecology and Life History

Lifeform: annual herb

Blooming Period: Mar-May

Elevation:
150 - 1280 meters
490 - 4200 feet

General Habitats:

Mojavean desert scrub

Microhabitat Details:

Microhabitat:

Gravelly
Sandy
Slopes
Washes

Notes

Notes: Single record from IMP Co. is likely M. hirsutissima. Occurrences from RIV Co. need quads and verification. Need quads for INY Co. Possibly threatened by renewable energy development.
Threats:
Taxonomy:

Threat List Data from the CNDDB

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

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					16
A	B	C	D	X	U
0	0	0	0	0	16

Occurrence Status:
Historical >20 Years	15
Recent <=20 Years	1

Presence:
Presumed Extant	16
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), California (CA), Nevada (NV), Utah (UT)

California Counties and Islands: Name (Code)
Imperial (IMP), Inyo (INY), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)

Quads: Name (Quad Code)
Bannock (3411487), Barstow (3411781), Beaumont (3311688), Blackwater Mine (3511577), Cottonwood Spring (3311567), Desert Hot Springs (3311685), East of Homer Mtn. (3511417), Flattop Mtn. (3411477), Havasu Lake (3411444), In-ko-pah Gorge (3211661), Monumental Pass (3411466), Mt. Manchester (3511416), Needles (3411475), Needles Nw (3411486), Needles SW (3411476), Topock (3411464), White Water (3311686)

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

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CNPS Rare Plant Inventory