Taxon Report

Galium angustifolium Nutt. ssp. borregoense Dempster

Borrego bedstraw

Print Report

Taxon Summary

Galium angustifolium ssp. borregoense, commonly known as Borrego bedstraw, is a perennial herb in the Rubiaceae that is found only in California. It occurs within Sonoran desert scrub, growing at elevations from 350 to 1250 meters. Galium angustifolium ssp. borregoense is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Galium angustifolium Nutt. ssp. borregoense Dempster
Common Name:	Borrego bedstraw
Family:	Rubiaceae
Element Code:	PDRUB0N042
USDA Plants Symbol:	GAANB
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Mar(May)	Mar(May)
Elevation:	350-1250 (1150-4100)
General Habitats:	Sonoran desert scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.3
Global Rank:	G5T3?
State Rank:	S3?
State List:	CR
Fed List:	None
Other Status:	BLM_S; SB_CalBG/RSABG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	20
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	1
Fair (C)	4
Poor (D)	0
None (X)	0
Unknown (U)	15

Location


California Endemic: True
California Counties and Islands: Name (Code)
Imperial (IMP), San Diego (SDG)
Quads: Name (Quad Code)
Borrego Palm Canyon (3311634), Earthquake Valley (3311614), In-ko-pah Gorge (3211661), Jacumba (3211662), Ranchita (3311625), Tubb Canyon (3311624), Whale Peak (3311613)

Threat List Data from the CNDDB


Threat List Total:	2
EOs with Threat Listed:	Total EOs	% of EOs
	3	15 %
Non-native plant impacts	2	10%
Foot traffic/trampling	1	5%

Notes



Known from fewer than ten occurrences. See Madroño 21(2):88 (1971) for original description, and Flora of California 4(2):23-24 (1979) by L. Dempster 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 1 July 2025].