Species Details

Erythronium helenae

St. Helena fawn lily

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Species Description:

Erythronium helenae, commonly known as St. Helena fawn lily, is a perennial bulbiferous herb in the Liliaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Lower montane coniferous forest, and Valley and foothill grassland, growing at elevations from 350 to 1220 meters. Erythronium helenae is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification

Scientific Name: Erythronium helenae Appleg.
Common Name: St. Helena fawn lily
Family:	Liliaceae
Element Code:	PMLIL0U060
USDA Plants Symbol:	ERHE6
Synonyms/Other Names:
Name Status:	JEP, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	G3
State Rank:	S3
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-12-09

Ecology and Life History

Lifeform: perennial bulbiferous herb

Blooming Period: Mar-May

Elevation:
350 - 1220 meters
1150 - 4005 feet

General Habitats:

Chaparral
Cismontane woodland
Lower montane coniferous forest
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Serpentine (sometimes)
Volcanic (sometimes)

Notes

Notes: Threatened by horticultural collecting, road construction, and geothermal development. See Contributions from the Dudley Herbarium 1:188 (1933) for original description, and Madroño 3(2):109 (1935) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

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

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Lake (LAK), Napa (NAP), Sonoma (SON)

Quads: Name (Quad Code)
Aetna Springs (3812264), Calistoga (3812255), Clearlake Oaks (3912216), Cloverdale (3812371), Detert Reservoir (3812265), Jericho Valley (3812274), Jimtown (3812267), Middletown (3812275), Mount St. Helena (3812266), Napa (3812233), St. Helena (3812254), The Geysers (3812277), Whispering Pines (3812276)

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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CNPS Rare Plant Inventory