Taxon  Report   5001    
Lomatium observatorium  Constance & Ertter
Mt. hamilton lomatium
Lomatium observatorium
© 2007 Tony Morosco
Photos from
CalPhotos / Calflora
Lomatium observatorium
© 2012 Lynn Robertson
Lomatium observatorium
© 2007 Tony Morosco
Lomatium observatorium, a dicot, is a perennial herb that is native to California.
CNPS Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Lomatium observatorium
© 2012 Lynn Robertson
Family: APIACEAE  
Genus: Lomatium
Serpentine affinity: 1.4; (weak indicator / indifferent)
Name Status:
Accepted by JEF + CNPS + PLANTS

More information about  Lomatium observatorium
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on Google Images
Jepson eFlora

Records from the Consortium of California Herbaria


Search (Flora of North America)

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2018. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Dec 17, 2018).