Taxon Report

Gentiana plurisetosa C. Mason

Klamath gentian

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Taxon Summary

Gentiana plurisetosa, commonly known as Klamath gentian, is a perennial herb in the Gentianaceae that is found in California and elsewhere. It occurs within Lower montane coniferous forest, Meadows and seeps, and Upper montane coniferous forest, growing at elevations from 1200 to 1900 meters. Gentiana plurisetosa is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Gentiana plurisetosa C. Mason
Common Name:	Klamath gentian
Family:	Gentianaceae
Element Code:	PDGEN060V0
USDA Plants Symbol:	GEPL6
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jul-Sep	Jul-Sep
Elevation:	1200-1900 (3935-6235)
General Habitats:	Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest
Microhabitat:	Mesic
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.3
Global Rank:	G2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 4.3 to 1B.3 on 2006-07-14

Occurrence Data from the CNDDB


Total Occurrences:	22
Element Occurrence Ranks:
Excellent (A)	6
Good (B)	1
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	15

Location


California Endemic: False
California Counties and Islands: Name (Code)
Humboldt (HUM), Siskiyou (SIS), Trinity (TRI)
Quads: Name (Quad Code)
Boulder Peak (4112351), English Peak (4112342), Salmon Mtn. (4112324), Somes Bar (4112344), Trinity Mtn. (4112314), Ukonom Lake (4112353), Ukonom Mtn. (4112354)

Threat List Data from the CNDDB


Threat List Total:	2
EOs with Threat Listed:	Total EOs	% of EOs
	9	41 %
Foot traffic/trampling	8	36%
Grazing	8	36%

Notes



Endangered in OR.
Threats:

Taxonomy:
See Revised Nomenclature below for information on the formerly confused G.setigera.

Selected References

Proposed change from CRPR 4.3 to 1B.3, G2G3 / S2 (2006)

Madroño 37(4):289-292 (1990)

Madroño 36(1):49-50 (1989)

Gentiana plurisetosa profile for potential Species of Conservation Concern evaluation (2018)

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 17 November 2025].