Species Details

Sidalcea malviflora ssp. patula

Siskiyou checkerbloom

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Photo of Sidalcea malviflora ssp. patula

Classification

Scientific Name: Sidalcea malviflora (DC.) Benth. ssp. patula C.L. Hitchc.
Common Name: Siskiyou checkerbloom
Family:	Malvaceae
Element Code:	PDMAL110F9
USDA Plants Symbol:	SIMAP
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G4G5T2
State Rank:	S2
Other Status:	BLM_S; SB_UCSC
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2024-11-05

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: (Mar-Apr)May-Aug

Elevation:
15 - 1230 meters
50 - 4035 feet

General Habitats:

Coastal bluff scrub
Coastal prairie
North Coast coniferous forest

Microhabitat Details: often roadcuts

Microhabitat:

Roadsides (often)

Notes

Notes:
Threats: Threatened by road widening and non-native plants. Possibly threatened by logging, grazing, and trampling.
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	11
	Total EOs	% of EOs
EOs with Threat Listed:	41	68 %
Road/trail construction/maint.	20	33%
Grazing	18	30%
Logging	17	28%
Non-native plant impacts	9	15%
Other	6	10%
Agriculture	5	8%
Development	5	8%
Foot traffic/trampling	4	6%
Biocides	2	3%
Vandalism/dumping/litter	2	3%
ORV activity	1	1%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					60
A	B	C	D	X	U
10	22	11	1	0	16

Occurrence Status:
Historical >20 Years	14
Recent <=20 Years	46

Presence:
Presumed Extant	60
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Oregon (OR)

California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Mendocino (MEN)

Quads: Name (Quad Code)
Albion (3912327), Arcata North (4012481), Bald Hills (4112328), Board Camp Mtn. (4012366), Bridgeville (4012347), Buckeye Mtn. (4012432), Capetown (4012443), Crescent City (4112472), Denny (4012384), Eureka (4012472)(?), Ferndale (4012453), Fields Landing (4012462), Fortuna (4012452), Garberville (4012317), Grouse Mtn. (4012376), Hydesville (4012451), Iaqua Buttes (4012368), Korbel (4012378), Lord-ellis Summit (4012387), Mad River Buttes (4012367), Maple Creek (4012377), Myers Flat (4012337), Orick (4112431), Owl Creek (4012358), Petrolia (4012433), Salyer (4012385), Scotia (4012441), Shubrick Peak (4012422), Smith River (4112482), Taylor Peak (4012442), Yager Junction (4012357)

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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Selected References

Other:

USFS Potential Species of Conservation Concern Profile