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Taxon  Report  
Calochortus nudus  S. Watson
Naked mariposa lily
Calochortus nudus is a perennial herb that is native to California, and endemic (limited) to California.
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
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Bloom Period
Genus: Calochortus
Family: Liliaceae  
Category: angiosperm  
PLANTS group:Monocot
Jepson eFlora section: monocot

Wetlands: Equally likely to occur in wetlands and non wetlands

Ultramafic affinity: 2.1 - weak indicator

Habitat: meadows

Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, wetland-riparian

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
JEF + PLANTSCalochortus nudus var. shastensis
PLANTSCalochortus shastensis
Information about  Calochortus nudus from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

USDA PLANTS Profile (CANU2)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[Wikipedia] Range, Habitat, Description: Calochortus nudus is a North American species of flowering plant in the lily family known by the common name naked mariposa lily.[2][3][4][5] It is native to the mountains of California and southwestern Oregon, where it grows in wet areas such as meadows and lakeside bogs.[4] Description Calochortus nudus is a perennial producing an unbranching stem up to about 25 centimeters tall. The basal leaf is 5 to 15 centimeters long and does not wither at flowering.[4] The inflorescence bears one or more erect, bell-shaped flowers. Each flower has three small, pointed sepals and three wider petals all pinkish or lavender in color. The petals are mostly hairless and about 1.5 centimeters long.[4] The fruit is a capsule about 2 centimeters long.[4] The "nudus" part of the name, literally meaning "nude," refers to the lack of hairs on the petals. Such hairs are present on many other species in the genus.[5] Distribution Calochortus nudus grows primarily in the Sierra Nevada and southern Cascades, from Josephine and Jackson Counties in Oregon to Tulare County in California. One additional report indicates an outlying population in eastern San Bernardino County.[3] (contributed by Mary Ann Machi)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/07/2023).