Calflora Taxon Report
Pseudotrillium rivale (S. Watson) S. B Farmer
Siskiyou wakerobin
Pseudotrillium rivale is a perennial herb that is native to California, and found only slightly beyond California borders.

Alternate Names and Sources:
Trillium rivaleJEPS
Trillium rivalePLANTS
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 + POWO
Jepson eFlora section:
monocot
USDA PLANTS group:

4 - broad endemic / strong indicator
Yellow Pine Forest

[Wikipedia] Monotypic Genus, Etymology,: Pseudotrillium is a monotypic genus of flowering plant in the family Melanthiaceae. Its sole species, Pseudotrillium rivale, is commonly known as the brook wakerobin.[5] It is endemic to the Siskiyou Mountains of southern Oregon and northern California. The Latin specific epithet rivale means “growing by streams”, with reference to a preferred habitat.[6] (link added by Mary Ann Machi)

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

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