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Taxon  Report  
Hydrophyllum occidentale  (S. Watson) A. Gray
California waterleaf,   Western waterleaf
Hydrophyllum occidentale is a perennial herb that is native to California, and also found elsewhere in western North America.
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: Hydrophyllum
Family: Hydrophyllaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Habitat: slopes

Communities: Yellow Pine Forest, Red Fir Forest, Northern Oak Woodland, wetland-riparian

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
JEFHydrophyllum macrophyllum var. occidentale
JEF + PLANTSHydrophyllum occidentale var. watsonii
JEFHydrophyllum speciosum
JEFHydrophyllum watsonii
Information about  Hydrophyllum occidentale from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora


Photos on Calflora

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Photos on iNaturalist

ID Tips on PlantID.net

[Wikipedia] Flower & Fruit Description: The inflorescence is a large ball of densely packed flowers. Each flower is up to a centimeter wide and bright white to lavender. It is coated in downy white hairs and has a long protruding style and usually five stamens with large purple or red anthers. The fruit is a spherical capsule containing two seeds. The inflorescence of Hydrophyllum occidentale occurs above the leaf canopy. (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: 07/14/2024).