Species Details

Sidalcea malviflora ssp. purpurea

purple-stemmed checkerbloom

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Classification

Scientific Name: Sidalcea malviflora (DC.) Benth. ssp. purpurea Hitchc.
Common Name: purple-stemmed checkerbloom
Family:	Malvaceae
Element Code:	PDMAL110FL
USDA Plants Symbol:	SIMAP2
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G5T1
State Rank:	S1
Other Status:	BLM_S
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: May-Jun

Elevation:
15 - 85 meters
50 - 280 feet

General Habitats:

Broadleafed upland forest
Coastal prairie

Microhabitat Details:

Microhabitat:

Notes

Notes: Threatened by development and non-native plants. Does plant occur in MRN Co.? Collection from 485C is intermediate with ssp. malviflora. Need quads for SMT Co. See University of Washington Publications in Biology 18:23 (1957) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	8	42 %
Development	4	21%
Foot traffic/trampling	4	21%
Road/trail construction/maint.	4	21%
Non-native plant impacts	3	15%
Recreational use (non-ORV)	2	10%
Grazing	1	5%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					19
A	B	C	D	X	U
1	2	3	0	0	13

Occurrence Status:
Historical >20 Years	17
Recent <=20 Years	2

Presence:
Presumed Extant	19
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Marin (MRN)?, Mendocino (MEN), Sonoma (SON)

Quads: Name (Quad Code)
Bodega Head (3812331), Cazadero (3812351), Drakes Bay (3812218)?, Duncans Mills (3812341), Fort Bragg (3912347), Fort Ross (3812352), Gualala (3812375), Inglenook (3912357), Mallo Pass Creek (3912316), Plantation (3812353), Point Arena (3812386), Saunders Reef (3812376), Stewarts Point (3812364)?, Tomales (3812228), Valley Ford (3812238)

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