Equisetum ramosissimum Desf. [family EQUISETACEAE], Pl. Atlant. 2: 398 (1799). TAB. 7. Type from Tunisia.
Equisetum campanulatum Poir. [family EQUISETACEAE], in Lam., Encycl. Méth. 5: 613 (1804). Type from Switzerland.
Equisetum ramosum Lam. & DC. [family EQUISETACEAE], Syn. Pl. Fl. Gallica: 118 (1806). Type from Alsace.
Equisetum elongatum Willd. [family EQUISETACEAE], in L., Sp. Pl., ed. 4, 5: 8 (1810). Type from Réunion.
Equisetum pannonicum Kit. apud Willd. [family EQUISETACEAE], in L., tom. cit.: 6 (1810). Type from Hungary.
Equisetum procerum Pollini [family EQUISETACEAE], Horti et Prov. Veron. Pl. Nov.: 28 (1816). Type from ?Italy.
Equisetum thunbergii Wikstr. [family EQUISETACEAE], in Kungl. Svensk. Vet. Akad. Handl. Stockh. 2: 4 (1821). Type from S. Africa.
Equisetum burchellii Vauch. [family EQUISETACEAE], Mon. Preles: 47, t. 10 (1822) reimpr. in Mém. Soc. Phys. Hist. Nat. Geneve, 1: 375 (1822). Type from S. Africa.
Equisetum multiforme Vauch. [family EQUISETACEAE], tom. cit.: 51 (1822) reimpr. tom. cit.: 379 (1822) nom. illegit.
Equisetum incanum Vauch. [family EQUISETACEAE], tom. cit.: 54, t. 12 (1822) reimpr. tom. cit.: 382 (1822). Type from Grand Canary.
Equisetum ephedroides Bory [family EQUISETACEAE], Nouv. Fl. Peloponn.: 66 (1838) nom. illegit.
Equisetum hungaricum Sandor & Kit. [family EQUISETACEAE], in Verh. Zool.-Bot. Ges. Wien, 13: 574 (1863). Type as for E. pannonicum.
Equisetum sieboldii Milde [family EQUISETACEAE], in Ann. Mus. Bot. Lugd.-Bat. 1: 62 (1864). Type from Japan.
Hippochaete ramosissimum Desf. Boern. [family EQUISETACEAE], Fl. für das Deutsch. Volk.: 282 (1912). Type as for Equisetum ramosissimum.
Equisetum azoricum Gandog. [family EQUISETACEAE], in Bull. Soc. Bot. Fr. 66: 304 (1920). Type from the Azores.