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Hierarchical position of the Genus Helanthium

Regnum  Plantae common name: The plant kingdom       Divisio  Magnoliophyta Cronquist syn. Angiospermophyta / Anthophyta pub. Takht. & Zimmerm. ex Reveal, Phytologia 79: 70. 29 Apr 1996. common name: angiosperms, flowering plants       Subdivisio  Magnoliophytina Frohne & U. Jensen ex Reveal pub. Phytologia 79: 70. 29 Apr 1996. common name: Angiosperms       Classis  Liliopsida Brongn. pub. Enum. Pl. Mus. Paris: xv, 17. 12 Aug 1843. common name: Monocots       Subclassis  Alismatidae Takht. pub. Sist. Filog. Cvetk. Rast.: 461. Jan-Mar 1967.       SuperOrdo  Alismatanae Takht. pub. Sist. Filog. Cvetk. Rast.: 461. Jan-Mar 1967.       Ordo  Alismatales Dumort. pub. Anal. Fam. Pl.: 54. 1829.       Subordo  Alismatineae Engl. pub. Syllabus, ed. 2: 73. Mai 1898.       Familia  Alismataceae Vent. pub. Tabl. R�gne V�g. 2: 157. 5 Mai 1799, nom. cons. common name: waterplantain       Genus  Helanthium (Benth.) Engelm. ex Britton syn. Echinodorus Rich. ex Engelm.

Individual specimen entries are published in the sample database supplied with The Compleat Botanica for species or varieties of this supra-generic taxon.

For a description of the methodology followed in establishing this hierarchy see the note Nomenclature used in The Compleat Botanica.