CNPS Inventory Plant Detail

Mentzelia torreyi

Common Name:	Torrey's blazing star
Family:	Loasaceae
Synonyms:
Element Code:	PDLOA031S0
Full Name:	Mentzelia torreyi Gray
USDA PLANTS Symbol:	METO2

Biology
Lifeform: perennial herb Blooming Period: June - August Habitat: sandy or rocky, alkaline, usually volcanic. • Great Basin scrub • Mojavean desert scrub • Pinyon and juniper woodland

Rarity Status
CA Rare Plant Rank: 2.2 Rare, threatened, or endangered in California, but more common elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2.2 S2: Imperiled. .2: Threatened. Global Rank: G4 G4: Apparently secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 8
Element Occurrence Ranks:

A B C D X U

1 0 0 0 0 7

Population Status:

Historic >20 yrs	Recent <=20 yrs
6	2

Presence:

Present Extant	Possibly Extirpated	Extirpated
8	0	0

Notes

Possibly threatened by vehicles, grazing, and trampling. See Proceedings of the American Academy of Arts and Sciences 10:72 (1874) for original description, and Annals of the Missouri Botanical Garden 21:158-159 (1934) for taxonomic treatment.
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: 1170 - 2835 meters

California Endemic: no

States: California, Idaho, Nevada, Oregon

California Counties and Islands: name (code)
Inyo (INY), Mono (MNO)

Quads: name (DWR code) USGS code
Blackrock (372B) 36118H2, Fish Slough (413B) 37118D4, Rovana (414A) 37118D5, Hammil Valley (432B) 37118F4, Banner Ridge (433A) 37118F5, Toms Place (433C) 37118E6, Casa Diablo Mtn. (433D) 37118E5, Sulphur Pond (469C) 38118A8, Big Alkali (470B) 38119B2, Negit Island (470D) 38119A1, Bridgeport (487C) 38119C2

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

1962

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 .

-118.5,37.625