Taxon Report

Ivesia patellifera (J.T. Howell) B. Ertter

Kingston Mountains ivesia

Print Report

Taxon Summary

Ivesia patellifera, commonly known as Kingston Mountains ivesia, is a perennial herb in the Rosaceae that is found only in California. It occurs within Pinyon and juniper woodland (granitic, and rocky), growing at elevations from 1400 to 2100 meters. Ivesia patellifera is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Ivesia patellifera (J.T. Howell) B. Ertter
Common Name:	Kingston Mountains ivesia
Family:	Rosaceae
Element Code:	PDROS0X0Z0
USDA Plants Symbol:	IVPA2
Synonyms/Other Names:	Potentilla patellifera J.T. Howell

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jun-Oct	Jun-Oct
Elevation:	1400-2100 (4595-6890)
General Habitats:	Pinyon and juniper woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.3
Global Rank:	G2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	BLM_S; SB_CalBG/RSABG
CRPR Changes:

Occurrence Data from the CNDDB


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

Location


California Endemic: True
California Counties and Islands: Name (Code)
San Bernardino (SBD)
Quads: Name (Quad Code)
Blackwater Mine (3511577), East of Kingston Peak (3511567), Horse Thief Springs (3511578), Kingston Peak (3511568)

Threat List Data from the CNDDB


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

Notes



See Leaflets of Western Botany 4:173 (1945) for original description, and Systematic Botany 14(2):231-244 (1989) for revised nomenclature.
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 10 September 2025].