Calflora Taxon Report
Hypericum scouleri Hook.
Scouler's St John's wort
Hypericum scouleri is a perennial herb that is native to California, and also found elsewhere in western North America.

Alternate Names and Sources:
Hypericum formosum var. scouleriJEPS
Hypericum scouleri ssp. scouleriJEPS
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
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Accepted by: JEPS + PLANTS + POWO
Jepson eFlora section:
eudicot
USDA PLANTS group:
Dicot

Occurs usually in wetlands, occasionally in non wetlands
streambanks, meadows
Redwood Forest, Douglas-Fir Forest, Yellow Pine Forest, Chaparral

[Wikipedia] Taxonomy: Hooker named the species scouleri to honor the naturalist John Scouler who accompanied David Douglas on his expedition to the Columbia river in the 1820s.[4] In English it is generally called Scouler's St. John's wort.[12] It is also called Western St. John's wort on occasion,[13] however this name is more commonly applied to Hypericum formosum. (link added by Mary Ann Machi)

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

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