Taxon Report

Ceanothus ferrisiae McMinn

Coyote ceanothus

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Taxon Summary

Ceanothus ferrisiae, commonly known as Coyote ceanothus, is a perennial evergreen shrub in the Rhamnaceae that is found only in California. It occurs within Chaparral, Coastal scrub, and Valley and foothill grassland, growing at elevations from 120 to 460 meters. Ceanothus ferrisiae is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.


  Classification

Scientific Name:
Ceanothus ferrisiae McMinn
Common Name:
Coyote ceanothus
Family: Rhamnaceae
Element Code: PDRHA041N0
USDA Plants Symbol: CEFE2
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial evergreen shrub
Blooming Period: Jan-May Jan-May
Elevation: 120-460 (395-1510)
General Habitats: Chaparral, Coastal scrub, Valley and foothill grassland
Microhabitat: Serpentine
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 4
Element Occurrence Ranks:
   Excellent (A) 1
   Good (B) 1
   Fair (C) 0
   Poor (D) 1
   None (X) 0
   Unknown (U) 1
California Endemic:  True
California Counties and Islands: Name (Code)
Santa Clara (SCL)
Quads: Name (Quad Code)
Loma Prieta (3712117), Morgan Hill (3712126), Mt. Sizer (3712125)

Threat List Data from the CNDDB

Threat List Total: 3
EOs with Threat Listed: Total EOs % of EOs
3 75 %
Development 2 50%
Grazing 2 50%
Improper burning regime 2 50%

Notes

Known from approximately five occurrences in the Mt. Hamilton Range. Threatened by expansion of Anderson Reservoir spillway, development, and alteration of fire regimes. See MadroƱo 2(11):89-90 (1933) for original description.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 30 January 2025].