Localities documented in Tropicos sources
United States (North America)
Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
- Munz, P. A. 1974. Fl. S. Calif. 1–1086. University of California Press, Berkeley. http://www.tropicos.org/Reference/1719
Global Range: California endemic, Santa Catalina Island.
Habitat and Ecology
Comments: Chaparral; volcanic.
IUCN Red List Assessment
Red List Category
Red List Criteria
- Needs updating
National NatureServe Conservation Status
Rounded National Status Rank: N2 - Imperiled
NatureServe Conservation Status
Rounded Global Status Rank: G2 - Imperiled
Reasons: Endemic to California, Arctostaphylos catalinae occurs only on Santa Catalina Island and is recovering vigorously after removal of most of the feral goats.
Comments: No threates are reported by the California Native Plant Society (2001), however, feral goats were a problem in the past. The California Natural Diversity Database reports no threats as well (2003).
This manzanita is a shrub usually exceeding 2 meters in height, sometimes taking a treelike form up to 5 meters tall. It is glandular and covered in white bristles. The leaves also have fine bristles. The dull, light green blades are up to 5 centimeters long by 3 wide. The flowers are borne in an open, branching inflorescence with leaflike bracts. The fruit is a spherical drupe up to 1.5 centimeters wide.
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