Taxon Report

Erythranthe shevockii (Heckard & Bacig.) N.S. Fraga

Kelso Creek monkeyflower

Print Report

Taxon Summary

Erythranthe shevockii, commonly known as Kelso Creek monkeyflower, is a annual herb in the Phrymaceae that is found only in California. It occurs within Joshua tree "woodland", and Pinyon and juniper woodland, growing at elevations from 800 to 1340 meters. Erythranthe shevockii is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Erythranthe shevockii (Heckard & Bacig.) N.S. Fraga
Common Name:	Kelso Creek monkeyflower
Family:	Phrymaceae
Element Code:	PDSCR1B2Z0
USDA Plants Symbol:
Synonyms/Other Names:	Mimulus shevockii

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Mar-May	Mar-May
Elevation:	800-1340 (2625-4395)
General Habitats:	Joshua tree "woodland", Pinyon and juniper woodland
Microhabitat:	Granitic (sometimes), Gravelly (sometimes), Metamorphic (sometimes), Sandy (sometimes)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G1
State Rank:	S1
State List:	None
Fed List:	None
Other Status:	BLM_S; SB_CalBG/RSABG; USFS_S
CRPR Changes:	changed from 1B.2 to 1B.1 on 2021-03-15

Occurrence Data from the CNDDB


Total Occurrences:	13
Element Occurrence Ranks:
Excellent (A)	1
Good (B)	10
Fair (C)	1
Poor (D)	0
None (X)	0
Unknown (U)	1

Location


California Endemic: True
California Counties and Islands: Name (Code)
Kern (KRN)
Quads: Name (Quad Code)
Cane Canyon (3511852), Claraville (3511843), Lake Isabella North (3511864), Pinyon Mtn. (3511842), Weldon (3511863), Woolstalf Creek (3511853)

Threat List Data from the CNDDB


Threat List Total:	9
EOs with Threat Listed:	Total EOs	% of EOs
	10	77 %
ORV activity	9	69%
Grazing	7	53%
Development	6	46%
Road/trail construction/maint.	4	30%
Recreational use (non-ORV)	2	15%
Erosion/runoff	2	15%
Non-native plant impacts	1	7%
Wood cutting or brush clearing	1	7%
Agriculture	1	7%

Notes



Threatened by residential development, agricultural conversion, grazing, non-native plants, recreational activities, road maintenance, and vehicles. See Madroño 33(4):271-277 (1986) for original description, and Phytoneuron 2012-39:1-60 (2012) 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 27 October 2025].