Equisetum ×alsaticum (H.P.Fuchs & Geissert) G.Phil., 1993 Dataset Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Equisetales family Equisetaceae genus Equisetum species Equisetum alsaticum Name Homonyms Equisetum ×alsaticum (H.P.Fuchs & Geissert) G.Phil., 1993 Equisetum ×alsaticum (H.P.Fuchs & Geissert) G.Phil. ex Lubienski & Bennert