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Podostemum
Podostemum ceratophyllum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malpighiales
Family:	Podostemaceae
Genus:	Podostemum Michx. (1803), nom. cons.
Species[1]
11; see text
Synonyms[1]
Crenias Spreng. (1827) Devillea Tul. & Wedd. (1849) Dicraea Tul. (1849), orth. var. Dicraeia Thouars (1806), nom. superfl. Mavaelia Trimen (1895), not validly publ. Mniopsis Mart. (1824), nom. illeg.

Podostemum is a genus of flowering plants in the family Podostemaceae. It is an aquatic plant with threadlike roots that attaches to rocks.^[2] It includes 11 species native to the Americas, ranging from eastern Canada through the eastern and south-central United States, and from southern Mexico to northeastern Argentina.^[1]

11 species are currently accepted.^[1]

• Podostemum ceratophyllum Michx., 1803: Eastern Canada to Eatstern United States, Honduras, Hispaniola.
• Podostemum comatum Hicken, 1917: Brazil (São Paulo) to Northeast Argentina.
• Podostemum distichum (Cham.) Wedd., 1873: Brazil to Northeast Argentina.
• Podostemum flagelliforme (Tul. & Wedd.) C.T.Philbrick & Novelo, 2004: Brazil (Tocantins).
• Podostemum irgangii C.T.Philbrick & Novelo, 2001: South Brazil.
• Podostemum muelleri Warm., 1911: Brazil (Southeast São Paulo) to Northeast Argentina.
• Podostemum ovatum C.T.Philbrick & Novelo, 2004: Southeast Brazil.
• Podostemum rutifolium Warm., 1899: South Brazil to Northeast Argentina.
• Podostemum saldanhanum (Warm.) C.T.Philbrick & Novelo, 2004: Brazil (Rio de Janeiro).
• Podostemum scaturiginum (Mart.) C.T.Philbrick & Novelo, 2004: Central Brazil.
• Podostemum weddellianum (Tul.) C.T.Philbrick & Novelo, 2004: Eats and South Brazil.

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