Taxon Report

Cercocarpus betuloides T. & G. var. blancheae (C. Schneider) Little

island mountain-mahogany

Print Report

Taxon Summary

Cercocarpus betuloides var. blancheae, commonly known as island mountain-mahogany, is a perennial evergreen shrub in the Rosaceae that is found only in California. It occurs within Chaparral, and Closed-cone coniferous forest, growing at elevations from 30 to 600 meters. Cercocarpus betuloides var. blancheae is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Cercocarpus betuloides T. & G. var. blancheae (C. Schneider) Little
Common Name:	island mountain-mahogany
Family:	Rosaceae
Element Code:	PDROS08022
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial evergreen shrub
Blooming Period: Feb-May	Feb-May
Elevation:	30-600 (100-1970)
General Habitats:	Chaparral, Closed-cone coniferous forest
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G5T4
State Rank:	S4
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
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)
Los Angeles (LAX), San Luis Obispo (SLO), Santa Barbara (SBA), Ventura (VEN)
Quads: Name (Quad Code)
Little Pine Mtn. (3411956), Lompoc (3412064), Malibu Beach (3411816), Newhall (3411845), Oat Mountain (3411835), Point Dume (3411817), San Luis Obispo (3512036), Santa Barbara (3411946), Santa Catalina East (3311833), Santa Catalina North (3311844), Santa Catalina South (3311834), Santa Catalina West (3311845), Santa Cruz Island A (3311987), Santa Cruz Island B (3311986), Santa Cruz Island C (3311985), Santa Cruz Island D (3311984), Santa Susana (3411836), Thousand Oaks (3411827), Topanga (3411815), Triunfo Pass (3411818), Val Verde (3411846)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes



Does plant occur on other Channel Islands? Threatened by development.
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].