Calflora Taxon Report
Trillium angustipetalum (Torr.) J. D. Freeman
Narrow petaled wakerobin, Narrowpetal wakerobin
Trillium angustipetalum is a perennial herb that is native to California, and found only slightly beyond California borders.

Alternate Names and Sources:
Trillium chloropetalum var. angustipetalumPLANTS
Trillium kurabayashiiJEPS
Trillium sessile var. angustipetalumPLANTS
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
DJJJASONAFMM

Bloom Period
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Accepted by: JEPS + PLANTS + POWO
Jepson eFlora section:
monocot
USDA PLANTS group:
Monocot

[Wikipedia] taxonomy: In 1856, John Torrey described Trillium sessile var. angustipetalum based on a specimen collected by John Milton Bigelow two years earlier in California. In 1975, John Daniel Freeman described the species Trillium angustipetalum based on Torrey's variety. The epithet angustipetalum means "narrow-petaled". (link added by Mary Ann Machi)

Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

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