| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Plantaginaceae | Bacopa aquatica | Aquatic in pools and exposed on mud. | Native of South America. |  (c) SANT, Sébastien - CC-BY-NC, permission granted to NCBG | |
| Plantaginaceae | Bacopa caroliniana | Blue Water-hyssop, Sweet Water-hyssop, Carolina Water-hyssop, Lemon Bacopa | Wet shores, tidal muds, marshes, disturbed wetland sites. | Se. Virginia south to s. Florida, west to e. Texas; Cuba. |  (c) Cressler, Alan M. |
| Plantaginaceae | Bacopa egensis | Brazilian Water-hyssop | Lakes, ponds, ditches, other disturbed aquatic areas. | Native of South America and perhaps also Africa. |  (c) GONZÁLEZ, ANDRÉS - CC0 |
| Plantaginaceae | Bacopa innominata | Tropical Water-hyssop | Freshwater and tidal muds, marshes, shallow water. | Maryland south to s. Florida, and in the West Indies and n. South America. |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |
| Plantaginaceae | Bacopa monnieri | Brahmi, Indian-pennywort, Herb-of-grace, Monnier's Water-hyssop, Pourpier de Marais (frc) | Freshwater tidal marshes, muddy shores, streams and pools. | E. Maryland and e. Virginia south to s. Florida, west to c. Texas, and in the West Indies and the New World subtropics and tropics; also Old World tropics and subtropics. Reported for s. Indiana by Bill Thomas (pers.comm., 2022). |  (c) Campos, Aidan |
| Plantaginaceae | Bacopa repens | South American Water-hyssop | Freshwater pools. | Presumably native of the New World tropics. Attributed to se. Virginia by Pennell (1935); no documentation is known. |  (c) marce - CC-BY-NC, permission granted to NCBG |
| Plantaginaceae | Bacopa rotundifolia | Midwestern Water-hyssop | Tidal muds, shallow water of large natural lake, river sandbars, other shallow water and shore situations. | Indiana and Iowa west to North Dakota and Montana, south to Alabama and Arizona; disjunct in e. Maryland, e. Virginia, ne. North Carolina, and e. South Carolina (Bradley et al. [in prep.]), where apparently native, though Cronquist (1991) considered introduced. Known in North Carolina only from Lake Mattamuskeet, Hyde County, and "north of Wilmingon); not recently seen. |  (c) Bradley, Keith |