Parent species: Schoenoplectus acutus
Plant Communities: Freshwater Marsh wetland-riparian
Synonyms: Schoenoplectus rubiginosus Scirpus acutus var. occidentalis Scirpus occidentalis Scirpus rubiginosus
Counties: Alameda Amador Butte Calaveras Contra Costa Colusa Del Norte El Dorado Fresno Glenn Humboldt Inyo Kings Kern Lake Lassen Los Angeles Marin Mariposa Mendocino Merced Mono Monterey Modoc Napa Nevada Orange Placer Plumas Riverside Sacramento Santa Barbara San Bernardino San Benito Santa Clara Santa Cruz San Diego San Joaquin San Luis Obispo San Mateo Shasta Siskiyou Solano Sonoma Stanislaus Sutter Tehama Trinity Tuolumne Ventura Yolo Yuba