Taxon Report

Galium catalinense Gray ssp. catalinense

Santa Catalina Island bedstraw

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Taxon Summary

Galium catalinense ssp. catalinense, commonly known as Santa Catalina Island bedstraw, is a perennial deciduous shrub in the Rubiaceae that is found only in California. It occurs within Chaparral, and Coastal scrub, growing at elevations from 5 to 440 meters. Galium catalinense ssp. catalinense is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Galium catalinense Gray ssp. catalinense
Common Name:	Santa Catalina Island bedstraw
Family:	Rubiaceae
Element Code:	PDRUB0N0F2
USDA Plants Symbol:	GACAC2
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial deciduous shrub
Blooming Period: Feb-Jul	Feb-Jul
Elevation:	5-440 (15-1445)
General Habitats:	Chaparral, Coastal scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.3
Global Rank:	G4T2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:	changed from 1B.2 to 1B.3 on 2015-03-13

Occurrence Data from the CNDDB


Total Occurrences:	12
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	12

Location


California Endemic: True
California Counties and Islands: Name (Code)
Los Angeles (LAX)
Quads: Name (Quad Code)
Santa Catalina East (3311833), Santa Catalina North (3311844), Santa Catalina South (3311834), Santa Catalina West (3311845)

Threat List Data from the CNDDB


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

Notes



Threatened by feral herbivores. See Synoptical Flora of North America ed. 2, 1(2):445 (1886) for original description, and University of California Publications in Botany 64:11 (1973) and Flora of California 4(2):20 (1979) by L. Dempster for taxonomic treatments.
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 2 November 2025].