Species Details

Phacelia greenei

Scott Valley phacelia

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Photo by © 2011 Steve Matson  max-height:128px; max-width:145px;
© 2011 Steve Matson
Photo by © 2008 Aaron Schusteff  max-height:128px; max-width:145px;
© 2008 Aaron Schusteff
Photo by © 2012 Sierra Pacific Industries  max-height:128px; max-width:145px;
© 2012 Sierra Pacific Industries
Scientific Name:
Phacelia greenei J.T. Howell
Common Name:
Scott Valley phacelia
Family: Hydrophyllaceae
Element Code: PDHYD0C1V0
USDA Plants Symbol: PHGR2
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: Apr-Jun
Elevation:
800 - 2440 meters
2625 - 8005 feet
General Habitat:
  • Closed-cone coniferous forest
  • Lower montane coniferous forest
  • Subalpine coniferous forest
  • Upper montane coniferous forest
General Micro Habitat:
Micro Habitat:
  • Serpentinite
Notes:
Known only in the vicinity of Scott Valley.
Threats:

Possibly threatened by mining.

Taxonomy:

Similar to the more widespread P. humilis which is sometimes mistaken for P. greenei outside of Scott Valley; differentiated from P. humilis in having glabrous vs. short-hairy stamens in addition to other characters.

Other:
Total Occurrences: 24
Element Occurrence Ranks:
A B C D X U
5 10 3 0 0 6
Occurrence Status:
Historical >20 Years 11
Recent <=20 Years 13
Presence:
Presumed Extant 24
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Siskiyou (SIS), Trinity (TRI)
Quads: Name (Quad Code)
Callahan (4112237), China Mtn. (4112245), Duzel Rock (4112256), Eaton Peak (4112238), Fort Jones (4112257), Greenview (4112258), McConaughy Gulch (4112247), Scott Mountain (4112236), South China Mtn. (4112235), Yreka (4112266)
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.

Map

Presumed Extant
Counties   Quads