CNPS Inventory Plant Detail

Erythronium howellii

Common Name:	Howell's fawn lily
Family:	Liliaceae
Synonyms:
Element Code:	PMLIL0U080
Full Name:	Erythronium howellii Wats.
USDA PLANTS Symbol:	ERHO10

Biology
Lifeform: perennial bulbiferous herb Blooming Period: April - May Habitat: sometimes serpentinite. • Lower montane coniferous forest • North Coast coniferous forest

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: G3G4 G3: Vulnerable. 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

0 0 0 0 0 8

Population Status:

Historic >20 yrs	Recent <=20 yrs
7	1

Presence:

Present Extant	Possibly Extirpated	Extirpated
8	0	0

Notes

Endangered in OR. A synonym of E. citrinum in TJM (1993) and TJM 2. See Proceedings of the American Academy of Arts and Sciences 22:480 (1887) for original description, and Madroño 3(2):89 (1935) 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: 1974-01-01
Last Update: 2013-02-04

Location

Elevation: 200 - 1145 meters

California Endemic: no

States: California, Oregon

California Counties and Islands: name (code)
Del Norte (DNT)

Quads: name (DWR code) USGS code
Polar Bear Mtn. (738A) 41123H5, Broken Rib Mtn. (738B) 41123H6, Shelly Creek Ridge (739A) 41123H7, High Plateau Mtn. (739B) 41123H8, Gasquet (739C) 41123G8, Smith River (740B) 41124H2, Hiouchi (740D) 41124G1

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

800

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 .

-123.875,41.875