Taxon Report

Erythranthe gracilipes (B.L. Rob.) N.S. Fraga

slender-stalked monkeyflower

Print Report

Taxon Summary

Erythranthe gracilipes, commonly known as slender-stalked monkeyflower, is a annual herb in the Phrymaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Lower montane coniferous forest, growing at elevations from 500 to 1300 meters. Erythranthe gracilipes is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Erythranthe gracilipes (B.L. Rob.) N.S. Fraga
Common Name:	slender-stalked monkeyflower
Family:	Phrymaceae
Element Code:	PDSCR1B1C0
USDA Plants Symbol:
Synonyms/Other Names:	Mimulus gracilipes

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Apr-Jun	Apr-Jun
Elevation:	500-1300 (1640-4265)
General Habitats:	Chaparral, Cismontane woodland, Lower montane coniferous forest
Microhabitat:	Burned areas (often), Decomposed granitic, Disturbed areas (often)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	BLM_S; SB_CalBG/RSABG; USFS_S
CRPR Changes:

Occurrence Data from the CNDDB


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

Location


California Endemic: True
California Counties and Islands: Name (Code)
Fresno (FRE), Madera (MAD), Mariposa (MPA)
Quads: Name (Quad Code)
Ahwahnee (3711936), Auberry (3711914), Humphreys Station (3611984), Mariposa (3711948), Miramonte (3611961), Sacate Ridge (3611982), Shaver Lake (3711913), Stumpfield Mtn. (3711947), Wawona (3711956)

Threat List Data from the CNDDB


Threat List Total:	2
EOs with Threat Listed:	Total EOs	% of EOs
	2	15 %
Development	1	7%
Non-native plant impacts	1	7%

Notes



Threatened by logging, grazing, vehicles, and non-native plants. See Proceedings of the American Academy of Arts and Sciences 26:176 (1891) for original description, Annals of the Missouri Botanical Garden 11(2-3):252-253 (1924) for the taxonomic treatment, 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].