Schoenoplectus acutus var. acutus
Common names: Hard-stem bulrush scirpe aigu
Revision as of 19:25, 24 November 2022 by GeoffLevin (talk | contribs) (Added Nfld. and Labr. (Nfld.) to distribution per communication from Luc Brouillet and Sue Meades; documented by specimens at MT)
Culms dark green, 1–3 m × 2–6 mm, very firm, rarely soft, air cavities in distal 1/4 mostly 0.5 mm wide. Leaves: sheath fronts coarsely pinnate-fibrillose. Inflorescences 2 times branched, branches mostly stiffly ascending. Spikelets 3–40, 6–18 × 3–4 mm. Flowers: perianth bristles 6, equaling achene body; styles 2-fid. Achenes plano-convex. 2n = 36, 38.
Phenology: Fruiting summer.
Habitat: Fresh, often calcareous to brackish marshes, fens, lakes, slow streams, often emergent in water to 1.5 m
Elevation: 0–2700 m
Distribution
Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Alaska, Ark., Colo., Conn., Del., Idaho, Ill., Ind., Iowa, Kans., Ky., Maine, Md., Mass., Mich., Minn., Mo., Mont., Nebr., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Okla., Pa., R.I., S.Dak., Tex., Vt., Va., Wash., Wis., Wyo., probably Eurasia.
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Schoenoplectus acutus var. acutus"
Alta. +, B.C. +, Man. +, N.B. +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Alaska +, Ark. +, Colo. +, Conn. +, Del. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mo. +, Mont. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Okla. +, Pa. +, R.I. +, S.Dak. +, Tex. +, Vt. +, Va. +, Wash. +, Wis. +, Wyo. + and probably Eurasia. +
Fresh, often calcareous to brackish marshes, fens, lakes, slow streams, often emergent in water to 1.5 m +
Present +
Bull. Torrey Bot. Club +
1954 +
Schoenoplectus acutus var. acutus +
Schoenoplectus acutus +
variety +