Acmella oppositifolia (Lam.) R.K.Jansen [ Spilanthes americana (L.f.) Hieron.]
      
no HD illustration available (m3)
Acmella oppositifolia (Lam.) R.K.Jansen [Spilanthes americana (L.f.) Hieron.] {-1} Compositae
D.S. Correll, H.B. Correll, Aquatic Wetl. Pl. SW U.S.: , fig. 761 (1972) [B.N. Culbertson]