Taxon Report

Githopsis diffusa Gray ssp. filicaulis (Ewan) N. Morin

Mission Canyon bluecup

Print Report

Taxon Summary

Githopsis diffusa ssp. filicaulis, commonly known as Mission Canyon bluecup, is a annual herb in the Campanulaceae that is found only in California. It occurs within Chaparral (disturbed areas, and mesic), growing at elevations from 450 to 700 meters. Githopsis diffusa ssp. filicaulis is ranked 3.1, Plants About Which We Need More Information, A Review List; Seriously threatened in California.

Classification


Scientific Name:	Githopsis diffusa Gray ssp. filicaulis (Ewan) N. Morin
Common Name:	Mission Canyon bluecup
Family:	Campanulaceae
Element Code:	PDCAM07023
USDA Plants Symbol:	GIDIF
Synonyms/Other Names:	Githopsis filicaulis Ewan

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Apr-Jun	Apr-Jun
Elevation:	450-700 (1475-2295)
General Habitats:	Chaparral
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	3.1
Global Rank:	G5T1Q
State Rank:	S1
State List:	None
Fed List:	None
Other Status:	USFS_S
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	3
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	3

Location


California Endemic: True
California Counties and Islands: Name (Code)
Riverside (RIV), San Diego (SDG)
Quads: Name (Quad Code)
Alpine (3211677), Bonsall (3311732), Cameron Corners (3211664), Dulzura (3211667), El Cajon Mtn. (3211687), La Mesa (3211771), Margarita Peak (3311744), Pechanga (3311741), Poway (3211781), Sage (3311658), San Vicente Reservoir (3211688), Tule Springs (3211686), Viejas Mountain (3211676)

Threat List Data from the CNDDB


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

Notes



Move to List 1B? Known in CA from fewer than five occurrences. Threatened by development. Taxonomic distinctiveness needs study. See Rhodora 41: 312 (1939) for original description, and Systematic Botany 8(4):465 (1983) for taxonomic treatment.
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 25 October 2025].