Calflora Taxon Report
Juncus effusus L. ssp. pacificus (Fernald & Wiegand) Piper & Beattie
Pacific rush
Juncus effusus ssp. pacificus is a perennial grasslike herb that is native to California.
Alternate Names and Sources:
Juncus effusus var. pacificusJEPS
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
The blue points on the map indicate observations in Calflora.
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Plant Range Plant Characteristics Location Suitability
Calflora Observations: ~741 records Add an Observation to Calflora Search for Juncus effusus
Name Status:
Accepted by: JEPS
Calflora Category:
angiosperm
Jepson eFlora section:
monocot (Jepson eFlora Taxon)
USDA PLANTS group:
Monocot
Wetlands:
Occurs usually in wetlands, occasionally in non wetlands
Communities:
wetland-riparian

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Additional Photos on Calflora
External links:
Consortium of California Herbaria (CCH2) International Plants Names Index (IPNI)
CalPhotos (UC Berkeley) iNaturalist PlantID.net Calscape (CNPS)
Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

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