Species Details

Arctostaphylos confertiflora

Santa Rosa Island manzanita

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Photo of Arctostaphylos confertiflora
© 2006 Steve Matson
Photo of Arctostaphylos confertiflora
© 2011 David Graber
Photo of Arctostaphylos confertiflora
© 2007 Neal Kramer
Scientific Name:
Arctostaphylos confertiflora Eastw.
Common Name:
Santa Rosa Island manzanita
Family: Ericaceae
Element Code: PDERI040A0
USDA Plants Symbol: ARCO13
Synonyms/Other Names:
CA Rare Plant Rank: 1B.2
Fed List: FE (1997-07-31)
State List: None
Global Rank: G2
State Rank:
S2
Other Status: SB_CalBG/RSABG; SB_SBBG; SB_USDA
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2022-02-01
Lifeform: perennial evergreen shrub
Blooming Period: Feb-Apr
Elevation:
40 - 500 meters
130 - 1640 feet
General Habitat:
  • Broadleafed upland forest
  • Closed-cone coniferous forest
  • Chaparral
General Micro Habitat:
Micro Habitat:
  • Rocky
  • Sandstone
Notes:
Fewer than 400 plants were estimated to occur as of 1996. Threatened by cattle grazing and feral herbivores. See Leaflets of Western Botany 1:122 (1934) for original description.
Threats:
Taxonomy:
Other:
Total Occurrences: 4
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 4
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 4
Presence:
Presumed Extant 4
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Santa Barbara (SBA)
Quads: Name (Quad Code)
Santa Rosa Island East (3311988), Santa Rosa Island North (3312081), Santa Rosa Island South (3312071)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Map

Presumed Extant
Counties   Quads