CNPS Inventory Plant Detail

Mentzelia tridentata

Common Name:	creamy blazing star
Family:	Loasaceae
Synonyms:
Element Code:	PDLOA031U0
Full Name:	Mentzelia tridentata (A. Davids.) H.J. Thomps. & Joyce Roberts
USDA PLANTS Symbol:	METR4

Biology
Lifeform: annual herb Blooming Period: March - May Habitat: rocky, gravelly, sandy. • Mojavean desert scrub

Rarity Status
CA Rare Plant Rank: 1B.3 Rare, threatened, or endangered in California and elsewhere .3: Not very endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2.3 S2: Imperiled. .3: No current threats known. Global Rank: G2 G2: Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 25
Element Occurrence Ranks:

A B C D X U

2 3 0 0 0 20

Population Status:

Historic >20 yrs	Recent <=20 yrs
16	9

Presence:

Present Extant	Possibly Extirpated	Extirpated
25	0	0

Notes
Threatened by vehicles, mining, and grazing. See Bulletin of the Southern California Academy of Sciences 9:71 (1910) for original description, and Phytologia 21(4):287 (1971) for revised nomenclature. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 2001-01-01 Last Update: 2010-03-15

Location

Elevation: 700 - 1160 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Imperial (IMP), Inyo (INY), Kern (KRN), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)

Quads: name (DWR code) USGS code
In-ko-pah Gorge (007A) 32116F1, Mesa Grande (034A) 33116B7, Thermal Canyon (064A) 33116F1, Indio (064B) 33116F2, Old Woman Springs (130B) 34116D6, Camp Rock Mine (155B) 34116F6, Ord Mountain (156A) 34116F7, West Ord Mountain (156B) 34116F8, White Horse Mtn. (156C) 34116E8, Yermo (181A) 34116H7, Nebo (181B) 34116H8, Daggett (181C) 34116G8, Minneola (181D) 34116G7, Barstow (182A) 34117H1, Barstow SE (182D) 34117G1, Lane Mountain (206C) 35116A8, Bird Spring (208A) 35117B3, Saltdale NW (235B) 35117D8, Cantil (235C) 35117C8, Volcano Peak (282A) 35117H7, Little Lake (282B) 35117H8, Haiwee Reservoirs (305B) 36117B8

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

1963

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-117.0,34.75