logo Calflora, a 501c3 non-profit
Taxon  Report  
Calochortus monophyllus  (Lindl.) Lem.
Yellow star tulip
Calochortus monophyllus 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

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

Habitat: slopes

Communities: Yellow Pine Forest, Foothill Woodland

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTSCyclobothra monophylla
Information about  Calochortus monophyllus from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora


Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[Wikipedia] Range & Description: Calochortus monophyllus is a North American species of flowering plants in the lily family known by the common name yellow star-tulip. Calochortus monophyllus is endemic to California. It is found in the foothill Interior oak woodland and yellow pine forest habitats of the Sierra Nevada and southernmost Cascades in California, from Shasta County to Tulare County. Description Calochortus monophyllus is a perennial herb producing a slender, sometimes branched stem up to about 20 centimeters tall. The basal leaf is 10 to 30 centimeters in length and does not wither at flowering. There may be smaller leaves located along the stem. The inflorescence bears 1 to 6 erect, bell-shaped flowers. Each flower has three pointed sepals and three more rounded petals, all bright to deep yellow. The petals may have some dark reddish spotting at the bases and are coated densely with yellow hairs on the inner surfaces. The fruit is a winged capsule one or two centimeters long. (link added 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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 07/20/2024).