Species Details

Erythronium revolutum

coast fawn lily

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Photo of Erythronium revolutum
©2007 Steve Matson
Photo of Erythronium revolutum
©2007 Steve Matson
Scientific Name:
Erythronium revolutum Sm.
Common Name:
coast fawn lily
Family: Liliaceae
Element Code: PMLIL0U0F0
USDA Plants Symbol: ERRE5
Synonyms/Other Names:
CA Rare Plant Rank: 2B.2
Fed List: None
State List: None
Global Rank: G4G5
State Rank:
Other Status:
CRPR Changes:
changed from 2.2 to 2B.2 on 2013-06-12
Add Date: 2001-01-01
Date Edited: 2021-12-09
Lifeform: perennial bulbiferous herb
Blooming Period: Mar-Jul(Aug)
0 - 1600 meters
0 - 5250 feet
General Habitat:
  • Bogs and fens
  • Broadleafed upland forest
  • North Coast coniferous forest
General Micro Habitat:
Micro Habitat:
  • Mesic
  • Streambanks
Threatened by logging, non-native plants, vehicles, and road maintenance. Possibly threatened by grazing. On watch list in OR, and state-listed as Sensitive in WA. See MadroƱo 3(2):93-99 (1935) for taxonomic treatment.
Total Occurrences: 172
Element Occurrence Ranks:
24 80 41 8 0 19
Occurrence Status:
Historical >20 Years 16
Recent <=20 Years 156
Presumed Extant 172
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR), Washington (WA)
California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Mendocino (MEN), Siskiyou (SIS), Trinity (TRI)
Quads: Name (Quad Code)
Ah Pah Ridge (4112348), Bailey Ridge (3912324), Bald Hills (4112328), Black Lassic (4012335), Blue Lake (4012388), Board Camp Mtn. (4012366), Bridgeville (4012347), Buckeye Mtn. (4012432), Bull Creek (4012431), Childs Hill (4112461), Cold Spring (3912315), Comptche (3912335), Dinsmore (4012345), Dubakella Mtn. (4012342), Ettersburg (4012328), Eureka (4012472), French Camp Ridge (4112327), Garberville (4012317), Gasquet (4112378), Grouse Mtn. (4012376), Hennessy Peak (4012375), Holter Ridge (4112338), Hupa Mountain (4112317), Iaqua Buttes (4012368), Johnsons (4112337), Klamath Glen (4112358), Korbel (4012378), Leggett (3912376), Lord-ellis Summit (4012387), Mad River Buttes (4012367), Maple Creek (4012377), Miranda (4012327), Myers Flat (4012337), Navarro (3912325), Owl Creek (4012358), Philo (3912314), Piercy (3912387), Salyer (4012385), Scotia (4012441), Sherwood Peak (3912355), Tan Oak Park (3912375), Taylor Peak (4012442), Weed (4112244), Weitchpec (4112326), Yager Junction (4012357)
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
Counties   Quads