Taxonomy of Pachypodium

The taxonomy of the Pachypodium genus is the study of the species and subspecies in the genus Pachypodium. There are currently 25 recognized species in the genus, of which 17 are shrubs and eight are trees.

Species included in the genus Pachypodium are as follows:^[1]

1. P. ambongense: [Madagascar, shrub]
2. P. baronii: [Madagascar, shrub]
3. P. bicolor: [Madagascar, shrub]
4. P. bispinosum: [Southern Continental Africa, shrub]
5. P. brevicaule: [Madagascar, shrub]
6. P. cactipes: [Madagascar, shrub]
7. P. decaryi: [Madagascar, shrub]
8. P. densiflorum; Baker [Madagascar, shrub]
9. P. brevicalyx or P. densiflorum var. brevicalyx
   • P. eburneum: [Madagascar, shrub]
10. P. geayi: [Madagascar, tree]
11. P. gracilius: [Madagascar, shrub]
12. P. horombense: [Madagascar, shrub]
13. P. inopinatum: [Madagascar, shrub]
14. P. lamerei (Madagascar palm): [Madagascar, tree]
    • P. ramosum: A synonym for P. lamere
15. P. lealii (Bottle tree): [Southern Continental Africa, tree]
16. P. makayense: [Madagascar, shrub]^[2]
17. P. menabeum: [Madagascar, tree]^[3]
18. P. meridionale: [Madagascar, tree]
19. P. namaquanum (Cobas tree): [Southern Continental Africa, tree]
20. P. rosulatum: [Madagascar, shrub]
21. P. rutenbergianum: [Madagascar, tree]
22. P. saundersii: [Southern Continental Africa, shrub]
23. P. sofiense: [Madagascar, tree]
24. P. succulentum: [Southern Continental Africa, Shrub]
25. P. windsorii: [Madagascar, Shrub]

References

1. ↑ Rapanarivo et al., 1999; Lavranos, 2004; Mays, Harry, 2005
2. ↑ Lavranos, John, J. "Pachypodium makayense: A New Species From Madagascar". Cactus and Succulent Journal 76 (2): 85–88. 
3. ↑ Mays, Harry. [European Union Honorary Representative] The Huntington Botannical Gardens' 2005 offering of International Succulent Introductions for the European Union. (Woodsleig, Moss Lane, St. Michaels on Wyre, Preston, PR3 0TY, UK: 2005)

• "Index of Botanist". Harvard University Herbaria Online. 
• Rapanarivo, S.H.J.V., Lavranos, J.J., Leeuwenberg, A.J.M., and Röösli, W. Pachypodium (Apocynaceae): Taxonomy, habitats and cultivation "Taxonomic revision of the genus Pachyypodium," S.H.J.V. Rapanarivo and J.J. Lavranos; "The habitats of Pachyppodium species" S.H.J.V. Rapanarivo; "Cultivation" W. Röösli. (A.A. Balkema: Rotterdam, Brokkfield, 1999) [The rest of the list is based on Rapanarivo et al.]