Equisetum fluviatile

Linnaeus

Sp. Pl. 2: 1062. 1753.

Common names: River horsetail pipes prêle fluviatile
Synonyms: Equisetum limosum Linnaeus
Treatment appears in FNA Volume 2.

Aerial stems monomorphic, green, unbranched or branched, 35–115 cm; hollow center large, to 9/10 stem diam.; vallecular canals absent. Sheaths squarish in face view, ca. 4–10 × 4–10 mm; teeth black, occasionally with narrow white border, 12–24, narrow, 2–3 mm. Branches when present only from midstem nodes, spreading, hollow, ridges 4–6, valleys rounded; 1st internode of each branch shorter than subtending stem sheath; sheath teeth narrow. 2n =216.


Phenology: Cones maturing in summer.
Habitat: Standing in water, in ponds, ditches, marshes, swales
Elevation: 0–1500 m

Distribution

V2 427-distribution-map.gif

St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Nunavut, Ont., P.E.I., Que., Sask., Yukon, Alaska including the Aleutian Islands, Conn., Del., D.C., Idaho, Ill., Ind., Iowa, Maine, Md., Mass., Mich., Minn., Mont., Nebr., N.H., N.J., N.Y., N.Dak., Ohio, Oreg., Pa., R.I., S.Dak., Vt., Va., Wash., W.Va., Wis., Wyo., Eurasia s to n Italy, China, Korea, Japan.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Equisetum fluviatile"
Richard L. Hauke +
Linnaeus +
Undefined subg. Hippochaete +
River horsetail +, pipes +  and prêle fluviatile +
St. Pierre and Miquelon +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, N.S. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Alaska including the Aleutian Islands +, Conn. +, Del. +, D.C. +, Idaho +, Ill. +, Ind. +, Iowa +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mont. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.Dak. +, Ohio +, Oreg. +, Pa. +, R.I. +, S.Dak. +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Wyo. +, Eurasia s to n Italy +, China +, Korea +  and Japan. +
0–1500 m +
Standing in water, in ponds, ditches, marshes, swales +
Cones maturing in summer. +
Equisetum limosum +
Equisetum fluviatile +
Equisetum subg. Hippochaete +
species +