Concise hierarchy

(Kingdom) Plantae - (Phylum) Tracheophyta - (Class) Polypodiopsida - (Order) Equisetales - (Family) Equisetaceae

Original position

Filices (Order) L. (1753), nom. inval.

Subsequent positions

Equisetum (Clade) Linnaeus 1753 [Cantino & Donoghue 2007]

Ref: P.D. Cantino et al., 2007: E14 ("All extant species of the genus Equisetum (see lists in Des Marais & al., 2003 and Guillon, 2004) and any extinct species that fall within the crown clade.").

Current position

Equisetaceae (Family) Michx. ex DC. (1804)

Ref: PPG I, 2016: 571.

Alternative positions

Filices (Order) L. (1753), nom. inval.

Ref: C. Linnaeus, 1753b: 1061.

Historical positions

Equisetaceae (Family) Michx. ex DC. (1804)	Ref: D.J. Mabberley, 2017: 335.
Equisetaceae (Family) Michx. ex DC. (1804)	Ref: PPG I, 2016: 571.
Equisetaceae (Family) Michx. ex DC. (1804)	Ref: A. Novikoff & B. Barabasz-Krasny, 2015: 48.
Equisetaceae (Family) Michx. ex DC. (1804)	Ref: D.J. Mabberley, 2008: 310.
Equisetaceae (Family) Michx. ex DC. (1804)	Ref: A.R. Smith et al., 2006: 709.
Sphenophyta (Phylum)	Ref: L. Margulis & K.V. Schwartz, 1998: 396. [rough position]
Equisetaceae (Family) Michx. ex DC. (1804)	Ref: R. van der Meijden, 1990: 56.
Sphenophyta (Phylum)	Ref: L. Margulis & K.V. Schwartz, 1982: 256. [rough position]
Equisetaceae (Family) Michx. ex DC. (1804)	Ref: J.T. Mickel, 1982: 340.
Equisetales (Order) DC. ex Bercht. & J.Presl (1829)	Ref: L.J. Audus & V. Heywood, 1981: 1359. [rough position]
Filices (Order) L. (1753), nom. inval.	Ref: C. Linnaeus, 1753b: 1061.

Number of Subtaxa

2024	Available in Systema Naturae 2000	15s;2v
1989-present	Systema Naturae 2000	2sg;15s
2010	Royal Botanic Gardens, Kew & Missouri Botanical Garden: 10 Aug 2011	23s
2006	A.R. Smith et al.: 709	2sg;15s
1998	L. Margulis & K.V. Schwartz	15s
1982	J.T. Mickel	15s
1982	L. Margulis & K.V. Schwartz	5s
1981	L.J. Audus & V. Heywood	~15s