Taxon Report

Ivesia campestris (Jones) Rydb.

field ivesia

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Taxon Summary

Ivesia campestris, commonly known as field ivesia, is a perennial herb in the Rosaceae that is found only in California. It occurs within Meadows and seeps (edges), Subalpine coniferous forest, and Upper montane coniferous forest, growing at elevations from 1975 to 3395 meters. Ivesia campestris is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Ivesia campestris (Jones) Rydb.
Common Name:	field ivesia
Family:	Rosaceae
Element Code:	PDROS0X050
USDA Plants Symbol:	IVCA2
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: May-Aug	May-Aug
Elevation:	1975-3395 (6480-11140)
General Habitats:	Meadows and seeps, Subalpine coniferous forest, Upper montane coniferous forest
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	69
Element Occurrence Ranks:
Excellent (A)	8
Good (B)	13
Fair (C)	4
Poor (D)	0
None (X)	0
Unknown (U)	44

Location


California Endemic: True
California Counties and Islands: Name (Code)
Fresno (FRE), Inyo (INY), Tulare (TUL)
Quads: Name (Quad Code)
Camp Nelson (3611825), Cannell Peak (3511873), Casa Vieja Meadows (3611823), Chagoopa Falls (3611844), Cirque Peak (3611842), Crag Peak (3611812), General Grant Grove (3611868), Haiwee Pass (3611821), Hume (3611878), Johnson Peak (3611843), Kern Lake (3611834), Kern Peak (3611833), Mineral King (3611845), Monache Mountain (3611822), Moses Mtn. (3611836), Mount Whitney (3611853), Mt. Langley (3611852), Mt. Silliman (3611866), Muir Grove (3611867), Quinn Peak (3611835), Silver City (3611846), Sirretta Peak (3511883), Slide Bluffs (3611886), Templeton Mtn. (3611832)

Threat List Data from the CNDDB


Threat List Total:	5
EOs with Threat Listed:	Total EOs	% of EOs
	23	33 %
Grazing	20	28%
Foot traffic/trampling	13	18%
Recreational use (non-ORV)	12	17%
ORV activity	3	4%
Road/trail construction/maint.	2	2%

Notes



Threatened by grazing. See Proceedings of the California Academy of Sciences II 5:679 (1895) for original description, and North American Flora 22:285 (1908) 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 9 May 2025].