Wyoming Rare Plant Field Guide
Scirpus cyperinus
- Synonym: Scirpus atrocinctus
- Similar Species: S. microcarpus and S. pallidus have sessile spikelets in head-like clusters and bristles shorter or equal to the achenes.
- Flowering/Fruiting Period: July-August.
- Distribution: Newfoundland to British Columbia, south to Florida and Texas; disjunct in the Black Hills of South Dakota and Wyoming (Crook Co.).
- Habitat: Moist to saturated soils of forested wetlands and streambanks. Elev. 4400-5600 ft.
- References: Fertig 1993 b; Gleason and Cronquist 1991; Hitchcock et al. 1969; Marriott 1993 b; Ode and Marriott 1990.
