Difference between revisions of "Schoenoplectus acutus var. acutus"
Common names: Hard-stem bulrush scirpe aigu
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Revision as of 20:42, 5 November 2020
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., 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 +