Juncus lescurii

San francisco rush, San Francisco Rush

Family: Juncaceae · Type: perennial · Native

San francisco rush is a California native perennial found in northern and central coastal bioregions in salt or freshwater marshes, shores of creeks and lakes at elevations below 100 meters. Flowering from June to September (extrapolated), this plant produces small green and dark brown flowers in dense, branching clusters. Growing with creeping rhizomes and erect stems 30 to 140 centimeters tall, it develops distinctive cylindric stems without typical leaf blades. Its basal leaf sheaths range from pale to dark brown with a dull to slightly shiny surface, while the plant's flower perianth measures 5 to 8 millimeters long with acuminate sepals. The fruit is light brown, three-angled with an acute tip, containing tiny ovoid seeds approximately 0.4 to 0.7 millimeters in length.

Habitat: Salt or freshwater marshes, shores of creeks and lakes

Elevation: < 100 m

Bioregions: NCo, CCo

California counties: Sonoma, Marin, San Francisco, San Mateo, Santa Cruz, Santa Barbara, San Luis Obispo, Humboldt, Monterey, Alameda, Mendocino, Contra Costa, Del Norte, San Bernardino, Solano

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.