Podostemum Michaux. Riverweed.
A genus of about 7-17 species, reduced aquatic herbs, of tropical to temperate America.
ID notes: Podostemum is a curious plant, seeming more like an alga than a vascular plant in color, texture, mode of attachment to substrate (by a fleshy disk), and irregular thalloid branching.
Ref: Cook & Rutishauser In Kubitzki, Bayer, & Stevens (2007); Graham & Wood (1975); Philbrick & Crow (1983); Philbrick & Crow (2015) In Flora of North America Editorial Committee (2015). Show full citations.
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© Alan Cressler: Podostemum ceratophyllum, Congaree River, Richland County, South Carolina 2 by Alan Cressler | Podostemum ceratophyllum source | Original Image ⭷
© Alan Weakley | Podostemum ceratophyllum source | Original Image ⭷
© Alan Cressler: Podostemum ceratophyllum, Congaree River, Richland County, South Carolina 1 by Alan Cressler | Podostemum ceratophyllum source | Original Image ⭷Feedback
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