Schoenoplectus etuberculatus, common name Canby's bulrush, is a plant species native to the United States. It is reported from every state on the Gulf and Atlantic coasts from eastern Texas to Delaware, plus isolated populations in Rhode Island (one population in Town of South Kingstown, Washington County)Richard W. Elmer. 2001. New England Plant Conservation Program Schoenoplectus etuberculatus (Steud.) Sojak Swamp-bulrush. and Missouri (Oregon County). It is an emergent plant growing in ponds, marshes, stream banks, etc., including in brackish water along the coast.Flora of North America, Schoenoplectus etuberculatusBONAP (Biota of North America Project) 2014 county distribution map, Schoenoplectus etuberculatus
Schoenoplectus etuberculatus is a mat-forming perennial herb spreading by means of underground rhizomes. Culms are up to 2 m (80 inches) tall, triangular in cross-section. Leaves are up to 20 cm (8 inches) long. Inflorescence is branched 2 or 3 times, bearing spikelets that are red, orange or straw-colored. Achenes are egg-shaped, about 4 mm (about 0.16 inches)across.Flora of North America v 23 p 53Steudel, Ernst Gottlieb von. 1855. Synopsis Plantarum Glumacearum 2: 142.Soják, Jiří. 1972. Časopis Národního Musea, Oddíl Prírodovĕdný 140(3–4): 127.Oteng-Yeboah, A. A. 1974. Notes from the Royal Botanic Garden, Edinburgh 33: 315Kuntze, Carl Ernst Otto. 1891. Revisio Generum Plantarum 2: 757.
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