Schoenoplectus californicus
Southern bulrush, Southern Bulrush
Photo by Chez Brungraber
Family: Cyperaceae · Type: Grass · Native
Schoenoplectus californicus (Southern bulrush) is a native California grass in the Cyperaceae family, recognized by blunt-3-sided stems and very numerous spikelets (25-150+).
Southern bulrush is a California native perennial found in coastal, central, and southern California regions, including the Great Valley, San Francisco Bay Area, and Colorado River areas in brackish to fresh marshes and shores at elevations below 1,500 meters. Flowering from spring to summer, this plant produces dark red-brown flowers in dense, branching clusters with spikelets 5 to 11 millimeters long. Growing impressively tall at 1 to 4 meters with thick rhizomes 10 to 15 millimeters in diameter, it develops robust stems 4 to 10 millimeters thick that are blunt three-sided or cylindrical. Its minimal leaves are flat, less than 2 centimeters long and 2 millimeters wide, with sheaths that split and leave coarse fibers. The fruit is small, smooth, and two-sided, measuring 1.8 to 2.2 millimeters long with soft-margined perianth bristles.
Identification and appearance
Key characters: 7 sympatric species; distinguished by blunt-3-sided stems and very numerous spikelets (25-150+)
Habitat and range
Habitat: Common. Brackish to fresh marshes, shores
Elevation: < 1500 m
California counties: Riverside, San Diego, Orange, San Bernardino, Contra Costa, Los Angeles, Marin, Monterey, Sacramento, San Francisco, San Luis Obispo, San Mateo, Santa Clara, Santa Cruz, Solano, Sonoma, Ventura, Santa Barbara, Imperial, Inyo, Mendocino, Alameda, San Joaquin, Napa, Tehama, Humboldt, Butte
Outside California: to North Carolina, Florida, South America, West Indies, Pacific Islands
Bloom period
Schoenoplectus californicus blooms Spring-summer.
How to tell it apart
vs Juncus: Schoenoplectus has flowers in spikelets with overlapping scales; Juncus has separate flowers with 6 perianth parts.; vs Typha: Schoenoplectus has small spikelets of tiny flowers; Typha has dense brown cylindrical flower spikes (cattails).; vs Bolboschoenus: Schoenoplectus has smooth flower scales; Bolboschoenus scales are fuzzy-hairy.; vs Carex: Schoenoplectus has bisexual flowers in open spikelets; Carex has separate male/female flowers in enclosed sacs.; vs Scirpus: Schoenoplectus has dull bracts with notched tips; Scirpus bracts are pointed and often reddish-tinged.
Frequently asked questions
Is Schoenoplectus californicus native to California?
Yes. Schoenoplectus californicus is native to California (recorded as native).
When does Schoenoplectus californicus bloom?
Schoenoplectus californicus blooms Spring-summer.
Where in California does Schoenoplectus californicus grow?
Schoenoplectus californicus occurs in Riverside, San Diego, Orange, San Bernardino, Contra Costa, Los Angeles, Marin, Monterey and other counties, at elevations of < 1500 m.
What plant family does Schoenoplectus californicus belong to?
Schoenoplectus californicus is in the Cyperaceae family, genus Schoenoplectus.
What habitat does Schoenoplectus californicus grow in?
Schoenoplectus californicus grows in Common. Brackish to fresh marshes, shores.
Related species
Other California species in the same genus, family, or bioregion.
- Schoenoplectus heterochaetus — Slender bulrush
- Schoenoplectus mucronatus — Rough-seed bulrush
- Schoenoplectus pungens var. longispicatus — Common three-square bulrush
- Schoenoplectus saximontanus — Rocky mountain bulrush
- Schoenoplectus sp. — Naked-stemmed bulrushes
- Schoenoplectus subterminalis — Water bulrush
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.