CNPS

CNPS Rare Plant Inventory

Species Details

Erythronium hendersonii

Henderson's fawn lily

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Photo by © 2021 Scot Loring max-height:128px; max-width:145px;
© 2021 Scot Loring 		Photo by ©2005 Jerry Murray max-height:128px; max-width:145px;
©2005 Jerry Murray 		Photo by © 2021 Scot Loring max-height:128px; max-width:145px;
© 2021 Scot Loring

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 Habitat:
  • Lower montane coniferous forest
General Micro Habitat:
Micro Habitat:

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:
Other:

Occurrence Data from the CNDDB

Total Occurrences: 7
Element Occurrence Ranks:
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
Print this Map
Counties   Quads

Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2022. Rare Plant Inventory (online edition, v9-01 1.5). Website https://www.rareplants.cnps.org [accessed 5 July 2022].