Limnophila rugosa (Roth) Merr.
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Limnophila rugosa (Roth) Merr. [ Herpestis rugosa Roth] [Scrophulariaceae]
K. Watanabe, Ill. Useful Pl. South. Reg., vol. 2(2): (Edible plants): t. 87, fig. 3 (1945)