Taxon Details

Arctostaphylos franciscana

Franciscan manzanita

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Taxon Summary:

Arctostaphylos franciscana, commonly known as Franciscan manzanita, is a perennial evergreen shrub in the Ericaceae that is found only in California. It occurs within Coastal scrub, growing at elevations from 60 to 300 meters. Arctostaphylos franciscana is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification

Scientific Name: Arctostaphylos franciscana Eastw.
Common Name: Franciscan manzanita
Family:	Ericaceae
Element Code:	PDERI040J3
USDA Plants Symbol:
Synonyms/Other Names: Arctostaphylos hookeri ssp. franciscana
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	FE (2012-10-05)
State List:	None
Global Rank:	GHC
State Rank:	S1
Other Status:	SB_UCBG
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2023-05-02

Ecology and Life History

Lifeform: perennial evergreen shrub

Blooming Period: Feb-Apr

Elevation:
60 - 300 meters
195 - 985 feet

General Habitats:

Coastal scrub (serpentinite)

Microhabitat Details:

Microhabitat:

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:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	3
	Total EOs	% of EOs
EOs with Threat Listed:	4	100 %
Development	3	75%
Other	1	25%
Road/trail construction/maint.	1	25%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					4
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

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CNPS Rare Plant Inventory