Bacopa innominata (M.Gómez) Alain

Much like no. 3 [Bacopa rotundifolia (Michx.) Wettst.]; stems glabrous, more often emersed; lvs 0.5–1 cm, fairly thick, obscurely 3–5-veined; pedicels 3–6 mm; upper sep broadly ovate-cordate, 4–6 mm; cor 3–5 mm, the lobes half as long as the tube; stamens 2–4. Wet places and shallow water; W.I. and C. Amer., n. to N.C., and in the intertidal zone to Va. and Md. (B. cyclophylla; B. stragula; Macuillamia obovata)