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Juncus ambiguus  Guss.
Saline toad rush,   Seasice rush
© 2011 Hattie Brown (Juncus bufonius)
© 2011 Aaron Arthur (Juncus bufonius)
© 2007 Dr. Amadej Trnkoczy (Juncus bufonius)
Juncus ambiguus is an annual grasslike herb that is not native to California.
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
Genus: Juncus
Family: Juncaceae  
Category: angiosperm  
PLANTS group:Monocot
Jepson eFlora section: monocot

Communities: wetland-riparian
Name Status:
Accepted by JEF + PLANTS
Alternate Names:
JEF + PLANTSJuncus bufonius var. halophilus
PLANTSJuncus bufonius var. ranarius
JEF + PLANTSJuncus ranarius
POWOJuncus hybridus
Information about  Juncus ambiguus from other sources

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 04/15/2025).