Mecardonia acuminata (Walter) Small var. acuminata . Phen: Jul-Sep; Aug-Oct. Hab: Marshes, ditches, wet pine savannas, bottomland forests, wet disturbed areas. Dist: DE and MD south to n. peninsular FL, west to e. TX, north in the interior to KY, TN, and MO.
ID notes:The long, ascending pedicels are distinctive for the species. The plant blackens on drying.
Origin/Endemic status: Native
Synonymy: = FNA17, K1, K3, K4, S, Va; = Mecardonia acuminata (Walter) Small ssp. acuminata – Fl6, WH3; = Pagesia acuminata (Walter) Pennell ssp. typica – Pennell (1935); < Bacopa acuminata (Walter) B.L.Rob. – F; < Mecardonia acuminata (Walter) Small – Ar, C, G, GrPl, GW2, Il, NcTx, RAB, Tn, Tx