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Taxon  Report  
Calochortus westonii  Eastw.
Shirley meadows star tulip
Calochortus westonii is a perennial herb (bulb) that is native to California, and endemic (limited) to California.
also called Calochortus coeruleus var. westonii
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   CNDDB
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
Observation Search
(46 records)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Genus: Calochortus
Family: Liliaceae  
Category: angiosperm  
PLANTS group:Monocot
Jepson eFlora section: monocot

Habitat: meadows

Communities: Yellow Pine Forest, Mixed Evergreen Forest

Name Status:
Accepted by JEF + CNPS + PLANTS
Alternate Names:
PLANTSCalochortus caeruleus var. westonii
JEF + CNPS + PLANTSCalochortus coeruleus var. westonii
Information about  Calochortus westonii from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (CAWE2)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net


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]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/09/2022).