Taxon Report

Arctostaphylos crustacea Eastw. ssp. eastwoodiana (P.V. Wells) V.T. Parker, M.C. Vasey & J.E. Keeley

Eastwood's brittle-leaf manzanita

Print Report


© 2006 Adonis (Don) Tate

Taxon Summary

Arctostaphylos crustacea ssp. eastwoodiana, commonly known as Eastwood's brittle-leaf manzanita, is a perennial evergreen shrub in the Ericaceae that is found only in California. It occurs within Chaparral (maritime, and sandy), growing at elevations from 90 to 365 meters. Arctostaphylos crustacea ssp. eastwoodiana is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

  Classification
Scientific Name:
 Arctostaphylos crustacea Eastw. ssp. eastwoodiana (P.V. Wells) V.T. Parker, M.C. Vasey & J.E. Keeley
Common Name:
 Eastwood's brittle-leaf manzanita
Family: Ericaceae
Element Code: PDERI041H4
USDA Plants Symbol:
Synonyms/Other Names:
  • Arctostaphylos tomentosa ssp. eastwoodiana

Ecology and Life History
Lifeform: perennial evergreen shrub
Blooming Period: Mar Mar
Elevation: 90-365 (295-1200)
General Habitats: Chaparral
Microhabitat:
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 1B.1
Global Rank: G4T2
State Rank:
 S2
State List: None
Fed List: None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB
Total Occurrences: 3
Element Occurrence Ranks:
   Excellent (A) 3
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 0

Location
California Endemic:  True
California Counties and Islands: Name (Code)
Santa Barbara (SBA)
Quads: Name (Quad Code)
Lompoc (3412064), Lompoc Hills (3412054), Surf (3412065)

Threat List Data from the CNDDB

Threat List Total: 2
EOs with Threat Listed: Total EOs % of EOs
3 100 %
Development 3 100%
Improper burning regime 3 100%

Notes
Threatened by urbanization. See Madroño 19(6):197 (1968) for original description.
Threats:
Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 9 May 2025].