CNPS Inventory Plant Detail

Triteleia grandiflora

Common Name:	Howell's triteleia
Family:	Themidaceae
Synonyms:	Triteleia grandiflora var. howellii
Element Code:	PMLIL21060
Full Name:	Triteleia grandiflora Lindl.
USDA PLANTS Symbol:	TRGRH

Biology
Lifeform: perennial bulbiferous herb Blooming Period: April - June Habitat: • Great Basin scrub • Pinyon and juniper woodland

Rarity Status
CA Rare Plant Rank: 2.1 Rare, threatened, or endangered in California, but more common elsewhere .1: Seriously endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S1 S1: Critically Imperiled. Global Rank: G3G4 G3: Vulnerable. G4: Apparently secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 4
Element Occurrence Ranks:

A B C D X U

0 0 0 0 0 4

Population Status:

Historic >20 yrs	Recent <=20 yrs
2	2

Presence:

Present Extant	Possibly Extirpated	Extirpated
4	0	0

Notes

Threatened by pipeline construction. Possibly threatened by grazing. See Proceedings of the American Academy of Arts and Sciences 14:301 (1879) for original description, and American Midland Naturalist 25:80 (1941) 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: 2012-05-15

Location

Elevation: 700 - 1500 meters

California Endemic: no

States: California, Colorado, Idaho, !MT, Oregon, Utah, Washington, Wyoming

California Counties and Islands: name (code)
Modoc (MOD), Siskiyou (SIS)

Quads: name (DWR code) USGS code
Big Swamp (677A) 41121B1, Rimrock Lake (711B) 41121F2, Hatfield (730A) 41121H5, Secret Spring Mtn. (732B) 41122H2, Panther Rock (732C) 41122G2, Hornbrook (734A) 41122H5

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

1140

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 .

-121.5,41.875