Date de publication : Bot. Gaz., 12(5): 103. 1887 [05/1887, fide p. 99].

Taxonomie : = Hydrocotyle prolifera Kellogg 1854?

Type : USA, Maryland, Near Onoro(?) Hill, W.M. Canby s.n. (HT: GH00076579).
Nom de remplacement pour Hydrocotyle umbellata var. ambigua A.Gray, Manual (ed. 5) 190. 1867 [≡ Hydrocotyle ambigua (A.Gray) Britton, Sterns & Poggenb., Prelim. Cat. [20-]21. 1888, nom. illeg. hom.; non H. ambigua Pursh, Fl. Amer. Sept., 2: 732. 1813; = Erigenia bulbosa (Michx.) Nutt. 1818, Apiaceae] ("Haute Louisiane")!].