Juncus nevadensis
Sierra rush
(c) Gabriel Campbell-Martinez, some rights reserved (CC BY) · licence
Family: Juncaceae · Type: Grass · Native
Juncus nevadensis (Sierra rush) is a native California grass in the Juncaceae family, recognized by No sympatric species; geographically isolated.
Sierra rush is a California native perennial found in mountain regions of the Sierra Nevada in meadows, seeps, and wet mountain habitats at elevations between 1,500 to 3,000 meters. Flowering from June to August, this rush produces small brownish flowers in compact clusters with dark to mid-brown perianth parts. Growing with slender stems 10 to 50 centimeters tall, it spreads through an elongate, creeping rhizome and forms dense clumps. Its narrow leaves are cylindric or slightly flattened, typically less than 2 millimeters wide, with green or bluish-green coloration and complete crosswalls. The fruit is a shiny brown oblong structure with an abruptly beaked tip, containing tiny brown seeds approximately 0.4 to 0.6 millimeters long.
Identification and appearance
Key characters: No sympatric species; geographically isolated
Habitat and range
California counties: Fresno, San Bernardino, Inyo, Lassen, Madera, Mariposa, Modoc, Mono, Nevada, Plumas, Shasta, Siskiyou, Tulare, Tuolumne, Alpine, Amador, Butte, Calaveras, El Dorado, Placer, Sierra, Tehama, Trinity, Kern, Los Angeles, San Diego, Contra Costa, Sonoma, San Mateo
How to tell it apart
vs Schoenoplectus: Juncus has leaf blades present; Schoenoplectus is leafless with only bladeless sheaths at base.; vs Carex: Juncus has round or flattened stems; Carex has triangular stems you can feel.; vs Luzula: Run finger along leaf edge - smooth = Juncus, hairy = Luzula.; vs Elegia: Juncus has small individual flowers; Elegia has showy papery bracts and branching structure.; vs Cyperus: Juncus has round stems and capsules; Cyperus has triangular stems and lens-shaped achenes.
Frequently asked questions
Is Juncus nevadensis native to California?
Yes. Juncus nevadensis is native to California (recorded as native).
Where in California does Juncus nevadensis grow?
Juncus nevadensis occurs in Fresno, San Bernardino, Inyo, Lassen, Madera, Mariposa, Modoc, Mono and other counties.
What plant family does Juncus nevadensis belong to?
Juncus nevadensis is in the Juncaceae family, genus Juncus.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · Index of California Plant Names · CalPhotos
Last updated 2026-10-07
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.