Concise hierarchy

(Kingdom) Plantae - (Phylum) Tracheophyta - (Class) Gnetopsida - (Order) Ephedrales - (Family) Ephedraceae

Original position

Dioecia Monadelphia (Order) L. (1753), nom. inval.

Subsequent positions

Gnetophyta (Clade) Bessey 1907 [Donoghue, Doyle & Cantino 2007], nom. cl. inval.

Ref: P.D. Cantino et al., 2007: E21.

Current position

Ephedraceae (Family) Dumort. (1829), nom. cons.

Ref: Новіков, А. & Барабаш-Красни, Б. / Novikoff, A. & Barabasz-Krasny, B., 2015: 60.

Alternative positions

Dioecia Monadelphia (Order) L. (1753), nom. inval.	Ref: C. Linnaeus, 1753b: 1040.
Gnetophyta (Clade) Bessey 1907 [Donoghue, Doyle & Cantino 2007], nom. cl. inval.	Ref: P.D. Cantino et al., 2007: E21. [new position]

Historical positions

Ephedraceae (Family) Dumort. (1829), nom. cons.	Ref: A. Novikoff & B. Barabasz-Krasny, 2015: 60.
Ephedraceae (Family) Dumort. (1829), nom. cons.	Ref: M.J.M. Christenhusz et al., 2011: 58.
Ephedraceae (Family) Dumort. (1829), nom. cons.	Ref: D.J. Mabberley, 2008: 308.
Gnetophyta (Clade) Bessey 1907 [Donoghue, Doyle & Cantino 2007], nom. cl. inval.	Ref: P.D. Cantino et al., 2007: E21. [new position]
Gnetophyta (Phylum) Bessey (1907)	Ref: L. Margulis & K.V. Schwartz, 1982: 266. [rough position]
Ephedraceae (Family) Dumort. (1829), nom. cons.	Ref: T.A. Zanoni, 1982: 355.
Dioecia Monadelphia (Order) L. (1753), nom. inval.	Ref: C. Linnaeus, 1753b: 1040.

Number of Subtaxa

2024	Available in Systema Naturae 2000	10s;2ss
1989-present	Systema Naturae 2000	35-40s
2011	M.J.M. Christenhusz et al.: 58	[~40s]
2011	M.J.M. Christenhusz et al.: 58	[~40s]
2010	Royal Botanic Gardens, Kew & Missouri Botanical Garden: 10 Aug 2011	67s
1982	L. Margulis & K.V. Schwartz	40s
1982	T.A. Zanoni: 355	35-40s