Juncus falcatus
Falcate rush
(c) Merlla McLaughlin, some rights reserved (CC BY) · licence
Family: Juncaceae · Type: Grass · Native
Juncus falcatus (Falcate rush) is a native California grass in the Juncaceae family.
Falcate rush is a California native perennial found in grassland and coastal prairie habitats. Flowering from May to July, this rush produces small dark flowers with wide scarious margins in small hemispheric clusters of 5 to 25 blossoms. Growing with stiff curved stems 3 to 30 centimeters tall, it develops from a long scaly rhizome with distinctive leaf characteristics. Its leaves are primarily basal, with stiff blades curved toward the stem and often reaching the top of the plant's inflorescence. The fruit is approximately equal to or slightly shorter than the perianth, with a short but obvious beak and a notched tip.
Identification and appearance
Key characters: 0 sympatric species; geographically isolated
Habitat and range
California counties: Mendocino, Monterey, Santa Barbara, Humboldt, Del Norte, Marin, San Francisco, Santa Cruz
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 falcatus native to California?
Yes. Juncus falcatus is native to California (recorded as native).
Where in California does Juncus falcatus grow?
Juncus falcatus occurs in Mendocino, Monterey, Santa Barbara, Humboldt, Del Norte, Marin, San Francisco, Santa Cruz.
What plant family does Juncus falcatus belong to?
Juncus falcatus is in the Juncaceae family, genus Juncus.
Related species
Other California species in the same genus, family, or bioregion.
- Juncus falcatus subsp. falcatus — Sickleleaved rush
- Juncus falcatus subsp. sitchensis — Alaskan sickleleaved rush
- Juncus gerardi subsp. gerardi — Mud rush
- Juncus hemiendytus — Herman's dwarf rush
- Juncus hemiendytus var. abjectus — Center basin rush
- Juncus hemiendytus var. hemiendytus — Hermann's dwarf rush
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.