Bolboschoenus sp.
Tuberous bulrushes, Tuberous Bulrushes
(c) Bruce Calvert, some rights reserved (CC BY), uploaded by Bruce Calvert · licence
Family: Cyperaceae · Type: Perennial · Variable; species dependent
Bolboschoenus sp. (Tuberous bulrushes) is a non-native California perennial in the Cyperaceae family.
Habitat and range
Habitat: Wetlands, often emergent
How to tell it apart
vs Schoenoplectus: Dig for tubers - Bolboschoenus has firm tubers, Schoenoplectus has only fibrous roots or rhizomes.; vs Carex: Bolboschoenus flowers are in rounded spikelets, Carex has separate male/female spikes or combined in same spike.; vs Scirpus: Bolboschoenus has firm underground tubers, Scirpus lacks tubers entirely.; vs Cyperus: Bolboschoenus has three-angled stems, Cyperus typically has flat leaf-like bracts radiating umbrella-like at top.; vs Sporobolus: Bolboschoenus stems are three-angled and solid, grass stems are round and hollow with nodes.
Frequently asked questions
Is Bolboschoenus sp. native to California?
No. Bolboschoenus sp. is not native to California (recorded as variable; species dependent).
What plant family does Bolboschoenus sp. belong to?
Bolboschoenus sp. is in the Cyperaceae family, genus Bolboschoenus.
What habitat does Bolboschoenus sp. grow in?
Bolboschoenus sp. grows in Wetlands, often emergent.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CalPhotos
Last updated 2026-04-14
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.