| Holographis ilicifolia Brandegee, 1906 |
| Holographis leticiana T.F. Daniel, 1988 |
| Holographis lizethae Cruz Durán & J. Jiménez Ram., 2011 |
| Holographis pallida Leonard & Gentry, 1948 |
| Holographis parayana Miranda, 1953 |
| Holographis peloria (Leonard) T.F. Daniel, 1984 |
| Holographis pueblensis T.F. Daniel, 1983 |
| Holographis tamaulipica T.F. Daniel, 1983 |
| Holographis tolantongensis T.F. Daniel, 1988 |
| Holographis velutifolia (House) T.F. Daniel, 1998 |
| Holographis virgata (Harv. ex Benth. & Hook. f.) T.F. Daniel, 1983 |
| Holographis virgata subsp. glandulifera (Leonard & C.V. Morton) T.F. Daniel, 1983 |
| Holographis virgata var. palmeri (Rose) T.F. Daniel, 1983 |
| Holographis websteri T.F. Daniel, 1986 |
| Hoverdenia Nees, 1847 |
| Hoverdenia speciosa Nees, 1847 |
| Hygrophila R. Br., 1810 |
| Hygrophila corymbosa (Blume) Lindau, 1904 |
| Hygrophila costata Nees, 1824 |
| Hygrophila difformis Blume, 1826 |