Taxon Details

Lewisia cotyledon var. howellii

Howell's lewisia

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Photo of Lewisia cotyledon var. howellii

Taxon Summary:

Lewisia cotyledon var. howellii, commonly known as Howell's lewisia, is a perennial herb in the Montiaceae that is found in California and elsewhere. It occurs within Broadleafed upland forest, Chaparral, Cismontane woodland, and Lower montane coniferous forest, growing at elevations from 150 to 2010 meters. Lewisia cotyledon var. howellii is ranked 3.2, Plants About Which We Need More Information, A Review List; Moderately threatened in California.

Classification

Scientific Name: Lewisia cotyledon (Wats.) Rob. var. howellii (Wats.) Jeps.
Common Name: Howell's lewisia
Family:	Montiaceae
Element Code:	PDPOR04053
USDA Plants Symbol:	LECOH2
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	3.2
Fed List:	None
State List:	None
Global Rank:	G4T4Q
State Rank:	S3
Other Status:
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2022-03-01

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Apr-Jul

Elevation:
150 - 2010 meters
490 - 6595 feet

General Habitats:

Broadleafed upland forest
Chaparral
Cismontane woodland
Lower montane coniferous forest

Microhabitat Details:

Microhabitat:

Rocky

Notes

Notes: Move to List 4? Taxonomic problems. Identification difficult. On watch list in OR.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

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

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

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

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

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

Quads: Name (Quad Code)
Badger Mtn. (4112276), Bear Peak (4112365), Bollibokka Mtn. (4012282), Boulder Peak (4112351), Buckhorn Bally (4112287), Bully Choop Mtn. (4012257), Chanchelulla Peak (4012248), Chimney Rock (4112356), Clear Creek (4112364), Condrey Mtn. (4112288), Dillon Mtn. (4112355), Dutch Creek (4112381), Eaton Peak (4112238), Figurehead Mtn. (4112383), Grider Valley (4112362), Hamburg (4112371), Happy Camp (4112374), Hoopa (4112316), Hoosimbim Mtn. (4012258), Hopkins Butte (4112325), Horse Creek (4112278), Huckleberry Mtn. (4112363), Indian Creek Baldy (4112267), Ironside Mtn. (4012374), Kangaroo Mtn. (4112382), Lake McCloud (4112221), McKinley Mtn. (4112277), Minnesota Mtn. (4012272), Orleans (4112335), Orleans Mtn. (4112334), Preston Peak (4112375), Salmon Mtn. (4112324), Sawyers Bar (4112332), Scott Bar (4112361), Seiad Valley (4112372), Shoeinhorse Mtn. (4112211), Slater Butte (4112373), Somes Bar (4112344), Ukonom Mtn. (4112354), Weitchpec (4112326), Whisky Bill Peak (4112215), Yellowjacket Mtn. (4112212), Yreka (4112266)

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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Original Description:	Proceedings of the American Academy of Arts and Sciences 23:262 (1888)
Taxonomic Treatment:	A Flora of California 1(5): 479. 1914[1915]
Species Account:	Lewisia cotyledon var. howellii profile for potential Species of Conservation Concern evaluation (2018)

CNPS Rare Plant Inventory