Equisetum × trachyodon is a nothospecies of Equisetum.^[1] Sometimes, it is considered as an individual species: Equisetum trachyodon.^[2]

The hybrid formula is Equisetum hyemale L. × Equisetum variegatum Schleich. ex F. Weber & D. Mohr.

Synonyms

• Equisetum hiemale var. doellii Milde
• Equisetum hiemale var. trachyodon A.Braun ex Döll
• Equisetum hyemale var. jesupii (A.A.Eat.) Victorin
• Equisetum hyemale var. mackayi Newman
• Equisetum hyemale f. multirameum (S.F.Blake) Vict.
• Equisetum hyemale var. trachyodon (A.K.H.Braun) Döll
• Equisetum hyemale subsp. trachyodon A.Br.
• Equisetum mackaii (Newman) Brichan
• Equisetum mackayi (Newman) Brichan
• Equisetum trachyodon f. fuchsii Geissert
• Equisetum trachyodon f. geminatum (S.F.Blake) M.Broun
• Equisetum trachyodon f. multirameum (S.F.Blake) M.Broun
• Equisetum variegatum var. anglicum Milde
• Equisetum variegatum var. concolor Milde
• Equisetum variegatum var. continentale Milde
• Equisetum variegatum f. geminatum S.F.Blake
• Equisetum variegatum var. jesupii A.A.Eat. ex Gilbert
• Equisetum variegatum f. multirameum S.F.Blake
• Equisetum variegatum var. trachyodon (A.K.H.Braun) J.D.Hooker fil.
• Hippochaete fuchsii (Geissert) H.P.Fuchs & Geissert
• Hippochaete hyemalis var. jesupii (A.A.Eat.) Farw.
• Hippochaete trachyodon (A.Br.) Boern.
• Hippochaete variegata var. jesupii (A.A.Eat.) Farw.

References