John Gilbert Baker,
Pachypodium brevicaule subsp. leucoxanthum, Lüthy.
This difficult member of
the Apocynaceae family was described by John Gilbert Baker in 1887. It is found
in the central Madagascar, growing in limestone with a little water
but often, year round. It needs lots of sun, and can grow to one meter in diameter and
40 centimetres in height. The flowers
are light yellow, and the plant can be reproduced both by seeds and
The genera name from Greek;
pachys; 'thick' and Greek podion; 'small foot' for
the thick caudiciform trunk, formed by some species. The species
name means 'short stem'.