water hyssop, herb of grace, brahmi
tropical and subtropical regions of world, particularly America
Species commonly cultivated
Bacopa caroliniana (Walter) B.L. Rob. (North America) (B. amplexicaulis)
B. lanigera (Cham. & Schldl.) Wettst. (Brazil)
B. monnieri (L.) Pennell (pan-tropical)
B. myriophylloides (Benth.) Wettst. (Brazil)
information not available
Native species of Bacopa (B. rotundifolia (Michx.) Wettst., B. monnieri and B. eisenii (Kell.) Pennell) are known to be weeds in rice crops in the United States.
Annual or perennial, decumbent or erect. Stems hairy or smooth. Leaves opposite or whorled, sessile; leaf blade round to linear, venation palmate or pinnate. Flowers solitary or in pairs in leaf axils, usually actinomorphic, with 5 sepals and 5 petals, usually white, blue or purple. Dispersal and propagation by seeds and stem fragments.
often found as a littoral inhabitant of streams, lakes, and wetlands
This genus contains 70-100 species, most of which are terrestrial or amphibious; several species (e.g. B. myriophylloides) are obligate aquatic. Only four species are commonly cultivated. A terrestrial plant with coarsely toothed leaves and white flowers sold as Bacopa is actually Sutera diffusus. Species of Bacopa are usually aromatic with a lemon scent when damaged, and plant extracts are used as herbal remedies.