| Common Names - Nound found | Synonyms - None found |
| Authority - Baillon | Gymnosperm or Angiosperm? Angiosperm |
| Plant forms - Spiny succulent shrubs & trees | Total Number of species - 27 |
| World Distribution - South & S.W. Madagascar | |
| Comments - Has some of the most unusual plants as trees. Very spiny. | |
| 1 - Didiera mirabilis. 2 - Didiera trolli. |