Taxon Report

Lomatium hendersonii (Coult. & Rose) Coult. & Rose

Henderson's lomatium

Print Report

Taxon Summary

Lomatium hendersonii, commonly known as Henderson's lomatium, is a perennial herb in the Apiaceae that is found in California and elsewhere. It occurs within Great Basin scrub, Lower montane coniferous forest, and Pinyon and juniper woodland, growing at elevations from 1400 to 2440 meters. Lomatium hendersonii is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Lomatium hendersonii (Coult. & Rose) Coult. & Rose
Common Name:	Henderson's lomatium
Family:	Apiaceae
Element Code:	PDAPI1B0T0
USDA Plants Symbol:	LOHE2
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Mar-Jun	Mar-Jun
Elevation:	1400-2440 (4595-8005)
General Habitats:	Great Basin scrub, Lower montane coniferous forest, Pinyon and juniper woodland
Microhabitat:	Clay, Rocky
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G5?
State Rank:	S2
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2.3 to 2B.3 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	14
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	1
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	13

Location


California Endemic: False
California Counties and Islands: Name (Code)
Lassen (LAS), Modoc (MOD), Siskiyou (SIS)
Quads: Name (Quad Code)
Cedarville (4112052), Infernal Caverns (4112035), Kangaroo Mtn. (4112382), Likely (4112025), Little Juniper Reservoir (4112034), Shields Creek (4112043), Tule Mountain (4112024)

Threat List Data from the CNDDB


Threat List Total:	2
EOs with Threat Listed:	Total EOs	% of EOs
	8	57 %
Other	8	57%
Road/trail construction/maint.	1	7%

Notes



Easily confused with L. canbyi. Inadvertently omitted from The Jepson Manual (1993). Field work needed. See Botanical Gazette 13:210 (1888) for original description, Systematic Botany Monographs 4:1-55 (1984) for taxonomic treatment, and Madroño 43(4):515-521 (1996) for discussion of presence in CA.
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 9 May 2025].