Species Details

Lilium occidentale

western lily

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Photo of Lilium occidentale
© 2018 Jason Matthias Mills
Photo of Lilium occidentale
© 1995 Saint Mary's College of California
Photo of Lilium occidentale
© 2008 Jennifer L. Kalt
CA Rare Plant Rank: 1B.1
Fed List: FE (1994-08-17)
State List: CE (1982-01-01)
Global Rank: G1G2
State Rank:
S1
Other Status: SB_BerrySB
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2022-08-02
Lifeform: perennial bulbiferous herb
Blooming Period: Jun-Jul
JFMAMJJASOND
Elevation:
2 - 185 meters
5 - 605 feet
General Habitats:
  • Bogs and fens
  • Coastal bluff scrub
  • Coastal prairie
  • Coastal scrub
  • Marshes and swamps (freshwater)
  • North Coast coniferous forest (openings)
Microhabitat Details:
Microhabitat:
Notes:
Most CA occurrences under DFG management or voluntarily protected by landowners. Threatened by development, herbivory, inappropriate grazing, vegetation succession, and horticultural collecting. State-listed as Endangered in OR. See Erythea 5:103-105 (1897) for original description.
Threats:
Taxonomy:
Threat List Total: 7
Total EOs % of EOs
EOs with Threat Listed: 13 81 %
THREAT LIST:
Development 7 43%
Grazing 7 43%
Other 7 43%
Over-collecting/poaching 4 25%
Foot traffic/trampling 4 25%
Total Occurrences: 16
Element Occurrence Ranks:
A B C D X U
0 4 5 3 3 1
Occurrence Status:
Historical >20 Years 7
Recent <=20 Years 9
Presence:
Presumed Extant 13
Possibly Extirpated 3
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR)
California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM)
Quads: Name (Quad Code)
Arcata North (4012481), Arcata South (4012471), Cannibal Island (4012463), Crescent City (4112472), Eureka (4012472), Fields Landing (4012462), Sister Rocks (4112462)
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.
Presumed Extant
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