Taxon Report

Galium glabrescens (Ehrend.) Dempster & Ehrend. ssp. modocense Dempster & Ehrend.

Modoc bedstraw

Print Report


© Gary Schoolcraft and CNPS

Taxon Summary

Galium glabrescens ssp. modocense, commonly known as Modoc bedstraw, is a perennial herb in the Rubiaceae that is found only in California. It occurs within Great Basin scrub (gravelly, rocky, and talus), growing at elevations from 1550 to 2835 meters. Galium glabrescens ssp. modocense is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.


  Classification

Scientific Name:
Galium glabrescens (Ehrend.) Dempster & Ehrend. ssp. modocense Dempster & Ehrend.
Common Name:
Modoc bedstraw
Family: Rubiaceae
Element Code: PDRUB0N0T2
USDA Plants Symbol: GAGLM
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: Jun-Aug Jun-Aug
Elevation: 1550-2835 (5085-9300)
General Habitats: Great Basin scrub
Microhabitat:
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 23
Element Occurrence Ranks:
   Excellent (A) 8
   Good (B) 8
   Fair (C) 2
   Poor (D) 0
   None (X) 0
   Unknown (U) 5
California Endemic:  True
California Counties and Islands: Name (Code)
Modoc (MOD)
Quads: Name (Quad Code)
Cedarville (4112052), Eagle Peak (4112032), Emerson Peak (4112022), Lake Annie (4112081), Snake Lake (4112021), Warren Peak (4112042)

Threat List Data from the CNDDB

Threat List Total: 5
EOs with Threat Listed: Total EOs % of EOs
10 43 %
Road/trail construction/maint. 6 26%
Grazing 5 21%
Erosion/runoff 2 8%
Foot traffic/trampling 1 4%
Improper burning regime 1 4%

Selected References

Brittonia 17:333 (1965)
Flora of California 4(2):34-35 (1979)
Galium glabrescens ssp. modocense profile for potential Species of Conservation Concern evaluation (2017)
USFS Potential Species of Conservation Concern Profile
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 January 2025].