Taxon Report

Phacelia cookei Const. & Heckard

Cooke's phacelia

Print Report


© 1992 Dean Wm. Taylor

  Classification

Scientific Name:
Phacelia cookei Const. & Heckard
Common Name:
Cooke's phacelia
Family: Hydrophyllaceae
Element Code: PDHYD0C0Y0
USDA Plants Symbol: PHCO20
Synonyms/Other Names:

Ecology and Life History

Lifeform: annual herb
Blooming Period: Jun-Jul Jun-Jul
Elevation: 1095-1700 (3595-5580)
General Habitats: Great Basin scrub, Lower montane coniferous forest
Microhabitat: Sandy, Volcanic
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 6
Element Occurrence Ranks:
   Excellent (A) 1
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 5
California Endemic:  True
California Counties and Islands: Name (Code)
Siskiyou (SIS)
Quads: Name (Quad Code)
Juniper Flat (4112253), The Whaleback (4112252)

Threat List Data from the CNDDB

Threat List Total: 4
EOs with Threat Listed: Total EOs % of EOs
5 83 %
Other 4 66%
Road/trail construction/maint. 1 16%
Biocides 1 16%
Non-native plant impacts 1 16%

Notes

Known from fewer than five occurrences. Threatened by non-native plants, and possibly by fire suppression. See Brittonia 22(1):25-30 (1970) for original description.
Threats:
Taxonomy:

Selected References

USFS Potential Species of Conservation Concern Profile
Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].