CNPS

CNPS Rare Plant Inventory

Species Details

Arctostaphylos franciscana

Franciscan manzanita

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Photo by © 2015 Neal Kramer max-height:128px; max-width:145px;
© 2015 Neal Kramer 		Photo by © 2015 Neal Kramer max-height:128px; max-width:145px;
© 2015 Neal Kramer 		Photo by © 2012 John Game max-height:128px; max-width:145px;
© 2012 John Game

Classification

Scientific Name:
Arctostaphylos franciscana Eastw.
Common Name:
Franciscan manzanita
Family: Ericaceae
Element Code: PDERI040J3
USDA Plants Symbol:
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank: 1B.1
Fed List: FE (2022-10-12)
State List: None
Global Rank: GHC
State Rank:
 S1
Other Status: SB_UCBG
CRPR Changes:
changed from 1A to 1B.1 on 2009-12-22
Add Date: 1974-01-01
Date Edited: 2022-02-01

Ecology and Life History

Lifeform: perennial evergreen shrub
Blooming Period: Feb-Apr
Elevation:
60 - 300 meters
195 - 985 feet
General Habitat:
  • Coastal scrub (serpentinite)
General Micro Habitat:
Micro Habitat:

Notes

Notes:
Single plant rediscovered in 2009. Previously considered extinct since 1947. Seriously threatened by road construction. See Bulletin of the Torrey Botanical Club 32:201 (1905) for original description, and Madrono 54(2): 148-155 (2007) for revised nomenclature.
Threats:
Taxonomy:
Other:

Occurrence Data from the CNDDB

Total Occurrences: 4
Element Occurrence Ranks:
A B C D X U
0 0 0 0 3 1
Occurrence Status:
Historical >20 Years 3
Recent <=20 Years 1
Presence:
Presumed Extant 1
Possibly Extirpated 0
Presumed Extirpated 3

Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Francisco (SFO)
Quads: Name (Quad Code)
San Francisco North (3712274), San Francisco South (3712264)*
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.
Regional Map

Map

Presumed Extant
Print this Map
Counties   Quads

Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2022. Rare Plant Inventory (online edition, v9-01 1.5). Website https://www.rareplants.cnps.org [accessed 22 May 2022].