Concise hierarchy

(Kingdom) Plantae - (Phylum) Tracheophyta - (Class) Magnoliopsida

Subsequent positions

Nymphaeidae (Subclass) J.W. Walker ex Takht. (1997)

Ref: A. Takhtajan, 1997: 76. [assumed]

Subsequent entries

Hydropeltidales (Order) Spenn. (1834)
Nymphaeales (Order) Salisb. ex Bercht. & J.Presl (1820)

Current position

Magnoliopsida (Class) Brongn. (1843)

Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 33); APG IV, 2016: fig. 1.

Alternative positions

Dicotyledones (Class)	Ref: G. Dahlgren, 1989a,b [implicit]
Magnoliidae (Subclass) Novák ex Takht. (1967)	Ref: M.W. Chase & J.L. Reveal, 2009: 123; APG IV, 2016: fig. 1.
Nymphaeidae (Subclass) J.W. Walker ex Takht. (1997)	Ref: A.B. Doweld, 2001: XXII.

Historical positions

Magnoliopsida (Class) Brongn. (1843)	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 33).
Magnoliidae (Subclass) Novák ex Takht. (1967)	Ref: M.W. Chase & J.L. Reveal, 2009: 123.
Nymphaeidae (Subclass) J.W. Walker ex Takht. (1997)	Ref: A.B. Doweld, 2001: XXII.
Nymphaeidae (Subclass) J.W. Walker ex Takht. (1997)	Ref: A. Takhtajan, 1997: 76. [new position]
Dicotyledones (Class)	Ref: G. Dahlgren, 1989a,b

Number of Subtaxa

2025	Available in Systema Naturae 2000	1o;3f;9g;39s;1ss;4v
1989-present	Systema Naturae 2000	[1o;3f;9g]
2015b	M.A. Ruggiero et al.: table 2 (p. 33)	[1o]
2009	M.W. Chase & J.L. Reveal: fig. 1	[1o]
2009	M.W. Chase & J.L. Reveal: fig. 1	[1o]
2001	A.B. Doweld: XXIII	[4o;6f]
1997	A. Takhtajan: 78	[2o;5f;8g;72-85s]
1997	A. Takhtajan: 78	[2o;5f;8g;72-85s]
1989a,b	G. Dahlgren	[2o;5f]