Taxon Report

Phacelia saxicola A. Gray

stonecrop phacelia

Print Report


© 2019 Aaron Schusteff

Species Description:
Phacelia saxicola, commonly known as stonecrop phacelia, is a annual herb in the Hydrophyllaceae that is found in California and elsewhere. It occurs within Great Basin scrub, growing at elevations from 1270 to 1890 meters. Phacelia saxicola is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

  Classification

Scientific Name:
Phacelia saxicola A. Gray
Common Name:
stonecrop phacelia
Family: Hydrophyllaceae
Element Code: PDHYD0C480
USDA Plants Symbol: PHSA
Synonyms/Other Names:

Ecology and Life History

Lifeform: annual herb
Blooming Period: Apr-Jun(Jul) Apr-Jun(Jul)
Elevation: 1270-1890 (4165-6200)
General Habitats: Great Basin scrub
Microhabitat: Gravelly, Rocky, Volcanic
Microhabitat Details: Occurs on limestone in other states; expected on limestone in California.

Occurrence Data from the CNDDB

Total Occurrences: 22
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 22
California Endemic:  False
California Counties and Islands: Name (Code)
Inyo (INY), Mono (MNO)
Quads: Name (Quad Code)
Casa Diablo Mtn. (3711855), Chidago Canyon (3711854), Fish Slough (3711844), Rovana (3711845), Toms Place (3711856)

Notes

Threats:
Possibly threatened by grazing, non-native plants, and recreational activities
Taxonomy:

Selected References

Proposed addition to CRPR 2B.3, G3/ S2 (2024)
Proceedings of the American Academy of Arts and Sciences Vol. (20): 304. (1885)
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 20 January 2025].