Equisetaceae

Equisetum fulvatile L

Equisetum fulvatile L

E. fluviatile L., Sp. PL 1062 (1753). Syn: E. limosum L., loc. cit. I?: Fl. Dan. 7: t. 1184 (1797); Roles, S. J., British Flora Illustrations 1, t. 15 (1957). Stems up to 150 cm, erect, green, simple, or with whorls of branches in the middle and upper parts; grooves shallow, 10-30. Sheaths green; teeth as many as the grooves, black, not ribbed, subulate. Central hollow 1/5the stem diameter. Branches ascending, 5-angled, the lowest internode equalling or shorter than the stem sheath. Cone 1-2 cm. River banks, etc., up to 1500 m. Described from Europe (Hb. Linn. 1241/6!) Very scattered, perhaps under-collected. A8 Giimüşane: N of Bayburt, 1500 m, D. 31977! Is.: Lesvos, Cand. Temperate Eurasia, N. America.