Species Details

Erythronium hendersonii

Henderson's fawn lily

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Classification

Scientific Name: Erythronium hendersonii Wats.
Common Name: Henderson's fawn lily
Family:	Liliaceae
Element Code:	PMLIL0U070
USDA Plants Symbol:	ERHE7
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S2
Other Status:	USFS_S
CRPR Changes: changed from 2.3 to 2B.3 on 2013-06-12
Add Date:	1974-01-01
Date Edited:	2021-06-03

Ecology and Life History

Lifeform: perennial bulbiferous herb

Blooming Period: Apr-Jul

Elevation:
300 - 1600 meters
985 - 5250 feet

General Habitats:

Lower montane coniferous forest

Microhabitat Details:

Microhabitat:

Notes

Notes: Forms hybrid swarms with E. citrinum in OR. See Proceedings of the American Academy of Arts and Sciences 22:479 (1887) for original description, and Madroño 3(2):91 (1935) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	2
	Total EOs	% of EOs
EOs with Threat Listed:	2	29 %
Erosion/runoff	2	28%
Road/trail construction/maint.	1	14%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					7
A	B	C	D	X	U
0	2	0	0	0	5

Occurrence Status:
Historical >20 Years	5
Recent <=20 Years	2

Presence:
Presumed Extant	7
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Oregon (OR)

California Counties and Islands: Name (Code)
Del Norte (DNT), Siskiyou (SIS)

Quads: Name (Quad Code)
Mt. Ashland (4212216), Siskiyou Pass (4212215), Takilma (4212315), Broken Rib Mtn. (4112386), Cecilville (4112322), Cottonwood Peak (4112286), Grasshopper Ridge (4112321), Greenview (4112258), Hamburg (4112371), Hiouchi (4112471), Hornbrook (4112285), Polar Bear Mtn. (4112385), Seiad Valley (4112372)

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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Selected References

Other:

USFS Potential Species of Conservation Concern Profile