Concise hierarchy

(Kingdom) Plantae - (Phylum) Tracheophyta - (Class) Polypodiopsida - (Order) Polypodiales

Subsequent positions

Dennstaedtiineae (Suborder) Schwartsb. & Hovenkamp (2016)

Ref: PPG I, 2016: 580.

Current position

Dennstaedtiineae (Suborder) Schwartsb. & Hovenkamp (2016)

Ref: PPG I, 2016: 580. [new position]

Alternative positions

Cyatheales (Order) A.B.Frank (1877)	Ref: L.J. Audus & V. Heywood, 1981: 1247.
Filicales (Order) Dumort. (1829), nom. illeg.	Ref: J.T. Mickel, 1982: 345.
Polypodiales (Order) Link (1833)	Ref: D.J. Mabberley, 2017: App. (p. 998).

Historical positions

Polypodiales (Order) Link (1833)	Ref: D.J. Mabberley, 2017: 284, App. (p. 998).
Dennstaedtiineae (Suborder) Schwartsb. & Hovenkamp (2016)	Ref: PPG I, 2016: 580. [new position]
Polypodiales (Order) Link (1833)	Ref: A. Novikoff & B. Barabasz-Krasny, 2015: 51.
basal polypod families ([unranked])	Ref: T.N. Taylor et al., 2009: table (p. 386), App. 1 (p. 1028).
Polypodiales (Order) Link (1833)	Ref: D.J. Mabberley, 2008: 263, 928.
Polypodiales (Order) Link (1833)	Ref: A.R. Smith et al., 2006: 714, fig. 2; 726.
Filicales (Order) Dumort. (1829), nom. illeg.	Ref: J.T. Mickel, 1982: 345.
Cyatheales (Order) A.B.Frank (1877)	Ref: L.J. Audus & V. Heywood, 1981: 1247.

Number of Subtaxa

2024	Available in Systema Naturae 2000	10g;6s
1989-present	Systema Naturae 2000: 20 Jun 2023	[10g]
2017	D.J. Mabberley: 284	10g;230s
2016	PPG I: 581	[10g]
2015	A. Novikoff & B. Barabasz-Krasny: 51	[10g]
2010	Royal Botanic Gardens, Kew & Missouri Botanical Garden: 12 Aug 2011	37g;359s
2008	D.J. Mabberley: 263	10g;230s
2006	A.R. Smith et al.: 714	~11g;~170s
1982	J.T. Mickel	16g500s
1981	L.J. Audus & V. Heywood	22g