Species Details

Sidalcea oregana ssp. hydrophila

marsh checkerbloom

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Classification

Scientific Name: Sidalcea oregana (T. & G.) Gray ssp. hydrophila (Heller) Hitchc.
Common Name: marsh checkerbloom
Family:	Malvaceae
Element Code:	PDMAL110K2
USDA Plants Symbol:	SIORH
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G5T2
State Rank:	S2
Other Status:	SB_UCSC
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: perennial herb

Blooming Period: (Jun)Jul-Aug

Elevation:
1100 - 2300 meters
3610 - 7545 feet

General Habitats:

Meadows and seeps
Riparian forest

Microhabitat Details:

Microhabitat:

Mesic

Notes

Notes: Intergrades with ssp. valida. See Muhlenbergia 1:107 (1904) for original description, and University of Washington Publications in Biology 18:1-96 (1957) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	6	17 %
Grazing	3	8%
Agriculture	2	5%
Foot traffic/trampling	1	2%
ORV activity	1	2%
Over-collecting/poaching	1	2%
Recreational use (non-ORV)	1	2%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					35
A	B	C	D	X	U
4	0	1	0	1	29

Occurrence Status:
Historical >20 Years	29
Recent <=20 Years	6

Presence:
Presumed Extant	34
Possibly Extirpated	1
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Colusa (COL), Glenn (GLE), Lake (LAK), Mendocino (MEN), Napa (NAP)

Quads: Name (Quad Code)
Clearlake Highlands (3812286), Crockett Peak (3912247), Elk Mountain (3912238), Fouts Springs (3912236), Hull Mountain (3912258), Kelseyville (3812287), Kneecap Ridge (3912257), Lake Pillsbury (3912248), Leech Lake Mtn. (3912381), Mendocino Pass (3912278), Plaskett Meadows (3912267), Plaskett Ridge (3912268), Potato Hill (3912237), Sanhedrin Mtn. (3912351), St. Helena (3812254), St. John Mtn. (3912246), The Geysers (3812277), Whispering Pines (3812276)

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