| Hepetis taenipetala (Mez) Mez, 1896 |
| Hepetis tuerckheimii (Donn. Sm.) Mez, 1896 |
| Hepetis xanthocalyx (Mart.) Mez, 1896 |
| Hohenbergia Schult. f., 1830 |
| Hohenbergia bracteata (Sw.) Baker, 1871 |
| Hohenbergia guatemalensis L.B. Sm., 1941 |
| Hohenbergia mesoamericana I. Ramírez, Carnevali & Cetzal, 2010 |
| Hohenbergia nudicaulis (L.) Baker, 1871 |
| Hohenbergiopsis L.B. Sm. & Read, 1976 |
| Hohenbergiopsis guatemalensis (L.B. Sm.) L.B. Sm. & Read, 1976 |
| Hoplophytum Beer, 1854 |
| Hoplophytum bracteatum (Sw.) K. Koch, 1860 |
| Hoplophytum coerulescens E. Morren, 1873 |
| Hoplophytum grande E. Morren ex Baker, 1889 |
| Hoplophytum lanuginosum Beer, 1856 |
| Hoplophytum nudicaule (L.) K. Koch, 1857 |
| Karatas Mill., 1754 |
| Karatas pinguin (L.) Mill., 1768 |
| Karatas plumieri E. Morren, 1872 |
| Lamprococcus Beer, 1857 |