Taxon Report

Lewisia longipetala (Piper) Clay

long-petaled lewisia

Print Report

© 2009 Gary A. Monroe

Classification


Scientific Name:	Lewisia longipetala (Piper) Clay
Common Name:	long-petaled lewisia
Family:	Montiaceae
Element Code:	PDPOR040K0
USDA Plants Symbol:	LELO2
Synonyms/Other Names:	Lewisia pygmaea (Gray) Rob. ssp. longipetala (Piper) Ferris

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jul-Aug(Sep)	Jul-Aug(Sep)
Elevation:	2500-2925 (8205-9595)
General Habitats:	Alpine boulder and rock field, Subalpine coniferous forest
Microhabitat:	Granitic
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.3
Global Rank:	G2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	USFS_S
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	14
Element Occurrence Ranks:
Excellent (A)	4
Good (B)	6
Fair (C)	3
Poor (D)	0
None (X)	0
Unknown (U)	1

Location


California Endemic: True
California Counties and Islands: Name (Code)
El Dorado (ELD), Nevada (NEV), Placer (PLA)
Quads: Name (Quad Code)
Echo Lake (3812071), Granite Chief (3912023), Independence Lake (3912043), Norden (3912033), Pyramid Peak (3812072), Rockbound Valley (3812082)

Threat List Data from the CNDDB


Threat List Total:	4
EOs with Threat Listed:	Total EOs	% of EOs
	7	50 %
Other	3	21%
Development	2	14%
Grazing	2	14%
ORV activity	2	14%

Notes



Possibly threatened by horticultural collecting. Interim management guidelines prepared by the USFS in 1992. See Contributions from the U.S. National Herbarium 16:207 (1918) for original description.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 8 January 2025].