Bacopa caroliniana is an emersed plant. This small sprawling herb is common in fresh and brackish waters. At least three species of bacopa are native to Florida and are distributed throughout much of the state (Wunderlin, 2015). This species, lemon bacopa, is distinguished by its blue flowers, a hairy upper stem, and by the lemony scent of its crushed leaves.
Bacopa caroliniana leaves are succulent and relatively thick. Its leaves are only 1/8 inch wide and 5/8 inch long. Leaves are almost round, and are arranged oppositely on the stem. Flowers are small and blue, with 4 or 5 petals.