Taxon Report

Erythranthe carsonensis N.S. Fraga

Carson Valley monkeyflower

Print Report

Steve Matson, 2013

Taxon Summary

Erythranthe carsonensis, commonly known as Carson Valley monkeyflower, is a annual herb in the Phrymaceae that is found in California and elsewhere. It occurs within Great Basin scrub, growing at elevations from 1480 to 1480 meters. Erythranthe carsonensis is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Erythranthe carsonensis N.S. Fraga
Common Name:	Carson Valley monkeyflower
Family:	Phrymaceae
Element Code:	PDPHR01020
USDA Plants Symbol:	ERCA9
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Apr-Jun	Apr-Jun
Elevation:	1480-1480 (4855-4855)
General Habitats:	Great Basin scrub
Microhabitat:	Granitic
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G2
State Rank:	S1
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:	added to 1B.1 on 2013-06-19

Occurrence Data from the CNDDB


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

Location


California Endemic: False
California Counties and Islands: Name (Code)
Alpine (ALP)
Quads: Name (Quad Code)
Woodfords (3811977)

Threat List Data from the CNDDB


Threat List Total:	1
EOs with Threat Listed:	Total EOs	% of EOs
	1	100 %
Development	1	100%

Notes



Known in CA only from the vicinity of Fredericksburg. Possibly threatened by development. Previously identified as E. montioides. Similar to E. suksdorfii. Not in TJM 2. See Aliso 30(1):49-68 (2012) for original description.
Threats:

Taxonomy:

Selected References

CRPR List Addition on 2013-06-19

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 17 November 2025].