Phyllactis rigida (Ruiz & Pavon) Pers. [ Valeriana rigida Ruiz & Pavon]
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Phyllactis rigida (Ruiz & Pavon) Pers. [ Valeriana rigida Ruiz & Pavon] [Valerianaceae]
H. Ruíz López, J.A. Pavon, Fl. Peruv., vol. 1(coloured version): (Plates 1-152): p. 39, t. 65, fig. c (1798)