Calflora
Taxon  Report   8973    
Polyctenium williamsiae  Rollins
Williams's combleaf
Polyctenium williamsiae, a dicot, is a perennial herb that is native to California.
also called Polyctenium fremontii
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   CNDDB
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
Observation Search
(68 records)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Family: Brassicaceae  
Genus: Polyctenium

Name Status:
Accepted by CNPS + PLANTS
Alternate Names:
PLANTSPolyctenium fremontii var. confertum
More information about  Polyctenium williamsiae
International Plants Names Index

Search efloras.org (Flora of North America)

Landscape information from Calscape

Photos on PlantID.net   /   Google Images

Consortium of California Herbaria 2

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2021. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 10/22/2021).