Taxon Report

Linanthus killipii Mason

Baldwin Lake linanthus

Print Report

Taxon Summary

Linanthus killipii, commonly known as Baldwin Lake linanthus, is a annual herb in the Polemoniaceae that is found only in California. It occurs within Joshua tree "woodland", Meadows and seeps (alkaline), Pebble (Pavement) plain, and Pinyon and juniper woodland, growing at elevations from 1700 to 2400 meters. Linanthus killipii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Linanthus killipii Mason
Common Name:	Baldwin Lake linanthus
Family:	Polemoniaceae
Element Code:	PDPLM090N0
USDA Plants Symbol:	LIKI
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: May-Jul	May-Jul
Elevation:	1700-2400 (5580-7875)
General Habitats:	Joshua tree "woodland", Meadows and seeps, Pebble (Pavement) plain, Pinyon and juniper woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G1
State Rank:	S1
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG; USFS_S
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	30
Element Occurrence Ranks:
Excellent (A)	1
Good (B)	5
Fair (C)	6
Poor (D)	2
None (X)	0
Unknown (U)	16

Location


California Endemic: True
California Counties and Islands: Name (Code)
San Bernardino (SBD)
Quads: Name (Quad Code)
Big Bear City (3411637), Moonridge (3411627), Onyx Peak (3411626), Rattlesnake Canyon (3411636)

Threat List Data from the CNDDB


Threat List Total:	11
EOs with Threat Listed:	Total EOs	% of EOs
	16	53 %
ORV activity	10	33%
Non-native plant impacts	6	20%
Development	5	16%
Foot traffic/trampling	5	16%
Road/trail construction/maint.	3	10%
Vandalism/dumping/litter	3	10%
Recreational use (non-ORV)	2	6%
Grazing	2	6%
Mining	2	6%
Non-native animal impacts	2	6%
Wood cutting or brush clearing	1	3%

Notes



Threatened by urbanization, vegetation/fuel management, recreational activities, and vehicles. See Madroño 9(8):251-252 (1948) for original description.
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 12 November 2025].