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CCDB → Angiosperms → Acanthaceae → Hygrophila
| Taxon name | Status | Median (n) |
| Hygrophila auriculata (Schumach.) Heine | Accepted | 16 |
| Hygrophila polysperma (Roxb.) T. Anderson | Accepted | 16 |
| Hygrophila senegalensis (Nees) T. Anderson | Accepted | 16 |
| Hygrophila paraibana Rizzini | Unresolved | 30 |
| Hygrophila serpyllum T. Anderson | Unresolved | 6 |
| Hygrophila balsamica (L.) E. Hossain | Synonym of Cardanthera balsamica (L.) Benth. ex C. B. Clarke | 17 |
| Asteracantha longifolia Nees | Synonym of Hygrophila auriculata (Schumach.) Heine | 16 |
| Hygrophila spinosa T. Anderson | Synonym of Hygrophila auriculata (Schumach.) Heine | 16 |
| Hygrophila lacustris (Cham. & Schltdl.) Nees | Synonym of Hygrophila costata Nees | 16 |
| Hygrophila angustifolia R. Br. | Synonym of Hygrophila ringens var. ringens | 22 |
| Hygrophila quadrivalvis (B. -Ham.) Nees | Synonym of Hygrophila ringens var. ringens | 22 |
| Hygrophila difformis Blume | Synonym of Hygrophila triflora (Roxb.) Fosberg & Sachet | 16 |