Species Details

Sidalcea hickmanii ssp. anomala

Cuesta Pass checkerbloom

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Classification

Scientific Name: Sidalcea hickmanii Greene ssp. anomala C.L. Hitchc.
Common Name: Cuesta Pass checkerbloom
Family:	Malvaceae
Element Code:	PDMAL110A1
USDA Plants Symbol:	SIHIA
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	CR (1979-11-01)
Global Rank:	G2T1
State Rank:	S1
Other Status:	SB_CalBG/RSABG; SB_SBBG; USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2024-04-02

Ecology and Life History

Lifeform: perennial herb

Blooming Period: May-Jun

Elevation:
600 - 800 meters
1970 - 2625 feet

General Habitats:

Closed-cone coniferous forest
Chaparral

Microhabitat Details:

Microhabitat:

Rocky
Serpentine

Notes

Notes: Known from fewer than five occurrences on Cuesta Ridge in the Los Padres NF and one occurrence on Camp Roberts Military Reservation. Threatened by fuelbreak construction, recreational activities, and vehicles.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	10
	Total EOs	% of EOs
EOs with Threat Listed:	3	75 %
Grazing	2	50%
Road/trail construction/maint.	2	50%
Development	1	25%
Erosion/runoff	1	25%
Feral pigs	1	25%
Improper burning regime	1	25%
Military operations	1	25%
Non-native plant impacts	1	25%
ORV activity	1	25%
Recreational use (non-ORV)	1	25%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					4
A	B	C	D	X	U
1	2	0	0	0	1

Occurrence Status:
Historical >20 Years	4
Recent <=20 Years	0

Presence:
Presumed Extant	4
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
San Luis Obispo (SLO)

Quads: Name (Quad Code)
Atascadero (3512046), San Luis Obispo (3512036)

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