Center for Aquatic and Invasive Plants - Aquatic, Wetland and Invasive Plant Particulars and Photos Aquatic, Wetland and Invasive Plant Particulars and Photographs University of Florida, Center for Aquatic and Invasive Plants Drawing Bacopa caroliniana Water hyssop, lemon bacopa B acopa 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. This species, lemon bacopa, is distinguished by its blue flowers and by the lemony scent of its crushed leaves. B acopa leaves are succulent and relatively thick.
Leaves are almost round, and are arranged oppositely on the stem.
Flowers are small and blue, with 4 or 5 petals.