Checklist » Hydrocharitaceae » Egeria densa
Last updated 12/26/2008 by David Giblin.
Egeria densa Planch.[FNA22, HC2]
Brazilian waterweed, South American waterweed

Publication: Annales des Sciences Naturelles, Botanique. sér. 3, 11: 80. 1849.

Origin: Introduced from South America

selected vouchers: WTU

Notes: FNA22: "Egeria densa is native to southeastern Brazil and has been widely sold in the aquarium trade, often becoming established in nature. Only staminate plants of E. densa have been observed outside its native range. Reproduction, then, occurs entirely by vegetative methods. No differentiated vegetative reproductive structures (turions, bulbils, etc.) are known (C. D. K. Cook and K. Urmi-König 1984b); however, the species is known to live temporarily under ice. The leaves of Egeria densa, which are only two cell-layers thick, are much used to demonstrate plant-cell structure and cytoplasmic streaming in introductory botany courses."

References: (none)

Synonyms & Misapplied Names:
Elodea densa (Planch.) Casp.[HC]