Species Details

Lewisia cotyledon var. heckneri

Heckner's lewisia

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Photo of Lewisia cotyledon var. heckneri

Classification

Scientific Name: Lewisia cotyledon (Wats.) Rob. var. heckneri (Mort.) Munz
Common Name: Heckner's lewisia
Family:	Montiaceae
Element Code:	PDPOR04052
USDA Plants Symbol:	LECOH
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G4T3
State Rank:	S3
Other Status:	BLM_S; SB_UCSC
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: perennial herb

Blooming Period: (Apr)May-Jul

Elevation:
225 - 2100 meters
740 - 6890 feet

General Habitats:

Lower montane coniferous forest (rocky)

Microhabitat Details:

Microhabitat:

Notes

Notes: Range overlaps with other varieties; identification difficult.
Threats: Possibly threatened by road widening and recreational activities.
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	11	27 %
Road/trail construction/maint.	5	12%
Foot traffic/trampling	2	4%
Logging	2	4%
Mining	1	2%
Other	1	2%
Recreational use (non-ORV)	1	2%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					41
A	B	C	D	X	U
4	7	2	0	0	28

Occurrence Status:
Historical >20 Years	36
Recent <=20 Years	5

Presence:
Presumed Extant	41
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Humboldt (HUM), Shasta (SHA), Siskiyou (SIS), Trinity (TRI)

Quads: Name (Quad Code)
Bollibokka Mtn. (4012282), Boulder Peak (4112351), Caribou Lake (4112218), Carrville (4112216), Condrey Mtn. (4112288), Dedrick (4012371), Del Loma (4012373), Denny (4012384), Happy Camp (4112374), Hayfork Bally (4012362), Helena (4012372), Hoosimbim Mtn. (4012258), Huckleberry Mtn. (4112363), Ironside Mtn. (4012374), Jim Jam Ridge (4012383), Junction City (4012361), Mt. Hilton (4012381), Preston Peak (4112375), Rush Creek Lakes (4012278), Siligo Peak (4012288), Thompson Peak (4112311), Thurston Peaks (4012382), Weaverville (4012268), Weitchpec (4112326), Whisky Bill Peak (4112215)

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

Click on quad for name. Hold Shift Key to use mouse scroll wheel

Selected References

Species Account:	Lewisia cotyledon var. heckneri profile for potential Species of Conservation Concern evaluation (2018)
Other:	USFS Potential Species of Conservation Concern Profile