Wigandia urens (Ruiz & Pavon) Kunth [ Hydrolea urens Ruiz & Pavon]
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Wigandia urens (Ruiz & Pavon) Kunth [ Hydrolea urens Ruiz & Pavon] [Hydrophyllaceae]
H. Ruíz López, J.A. Pavon, Fl. Peruv., vol. 2(coloured version): (Plates 153-325): p. 21, t. 243 (1798)