Halenia umbellata (Ruiz & Pavon) Gilg [ Swertia umbellata Ruiz & Pavon]
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Halenia umbellata (Ruiz & Pavon) Gilg [ Swertia umbellata Ruiz & Pavon] [Gentianaceae]
H. Ruíz López, J.A. Pavon, Fl. Peruv., vol. 2(coloured version): (Plates 153-325): p. 21, t. 242, fig. b (1798)