Taxon Report

Lomatium kogholiini K.M. Mason & Willie

Wailaki lomatium

Print Report

Taxon Summary

Lomatium kogholiini, commonly known as Wailaki lomatium, is a perennial herb in the Apiaceae that is found only in California. It occurs within Lower montane coniferous forest, growing at elevations from 450 to 1250 meters. Lomatium kogholiini is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Lomatium kogholiini K.M. Mason & Willie
Common Name:	Wailaki lomatium
Family:	Apiaceae
Element Code:	PDAPI1B310
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Apr-Jun	Apr-Jun
Elevation:	450-1250 (1475-4100)
General Habitats:	Lower montane coniferous forest
Microhabitat:	Serpentine
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G1
State Rank:	S1
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	added to 1B.2 on 2023-06-13

Occurrence Data from the CNDDB


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

Location


California Endemic: False
California Counties and Islands: Name (Code)
Mendocino (MEN)
Quads: Name (Quad Code)
Leggett (3912376), Noble Butte (3912386)

Threat List Data from the CNDDB


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

Notes




Threats:
Possibly threatened by mining, logging, road maintenance, vehicles, and erosion
Taxonomy:
Previously identified as L. congdonii, L. engelmannii, or L. tracyi; differentiated by its lack of bractlets, 4–7 rays per umbel, green leaves, and 4–6 oil tubes on comissures.

Selected References

Proposed addition to CRPR 1B.2, G1 / S1 (2023)

Phytoneuron 2019-10: 1–18 (2019)

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 11 November 2025].