Juncus gerardi subsp. gerardi

Mud rush, Mud Rush

Family: Juncaceae · Type: perennial · Not Native

Mud rush is a naturalized perennial found in the Contra Costa and Solano counties coastal salt marshes at elevations below 10 meters. Flowering from late spring to summer, this plant produces small black-striped flowers with hooded, incurved tips. Growing with a creeping rhizome and reaching 15 to 45 centimeters tall, it forms loose clusters of slender stems. Its generally basal leaves are flat with blunt sheath appendages measuring 0.4 to 0.7 millimeters long. The fruit is approximately ellipsoid and roughly equal in length to the perianth parts.

Habitat: Coastal salt marsh

Elevation: < 10 m

Bioregions: CCo (Contra Costa, Solano cos.)

California counties: Contra Costa, Solano, Alameda

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