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*Oshuna Haines. Water-hyacinth.

A monotypic genus, a floating aquatic herb, native of South America. Often included in Eichhornia and recently proposed to alternatively be merged into a broad Pontederia (Pellegrini, Horn, & Almeida 2018). Haines (2021) resolved that the genus name Piaropus is invalid, and a treatment (as here) which recognizes the "water-hyacinth" as generically distinct from Pontederia and Eichhornia needed a new name, which he provided.

Ref: Haines (2021); Pellegrini, Horn, & Almeida (2018); Rosatti (1987a). Show full citations.

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