Species Details

Phacelia leonis

Siskiyou phacelia

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Photo of Phacelia leonis
©2019 Steve Matson
Photo of Phacelia leonis
©2020 Neal Kramer
Photo of Phacelia leonis
©2019 Steve Matson
Scientific Name:
Phacelia leonis J.T. Howell
Common Name:
Siskiyou phacelia
Family: Hydrophyllaceae
Element Code: PDHYD0C2N0
USDA Plants Symbol: PHLE2
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: Jun-Aug
1200 - 2000 meters
3935 - 6560 feet
General Habitat:
  • Meadows and seeps
  • Upper montane coniferous forest (openings)
General Micro Habitat:
Micro Habitat:
  • Serpentinite (often)
Total Occurrences: 24
Element Occurrence Ranks:
1 6 0 0 0 17
Occurrence Status:
Historical >20 Years 19
Recent <=20 Years 5
Presumed Extant 24
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR)
California Counties and Islands: Name (Code)
Del Norte (DNT), Siskiyou (SIS), Trinity (TRI)
Quads: Name (Quad Code)
Takilma (4212315), Billys Peak (4112227), Caribou Lake (4112218), Cecil Lake (4112312), Chimney Rock (4112356), Covington Mill (4012287), Dees Peak (4112313), Mount Eddy (4112234), Mumbo Basin (4112225), Polar Bear Mtn. (4112385), Scott Mountain (4112236), Seven Lakes Basin (4112224), Smoky Creek (4012332), Tangle Blue Lake (4112226), Whisky Bill Peak (4112215), Ycatapom Peak (4112217)
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