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1 1074294 Wigandia urens (Ruiz & Pavon) Kunth [181 541492 Hydrolea urens Ruiz & Pavon]
P.C. Standley, J.A. Steyermark, Fl. Guatemala, vol. 9(1,2): : p. 110, fig. 21 (1946-1977) [D.L. Simon]
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