rockm

Your tree is a related to bougainvillea. It is not related to the temperate climate boxwood. You probably knew already that but it bears mentioning as care for a boxwood will kill this species.

Here' s the BCI sheet on it:

http://www.bonsai-bci.com/species/neea.html

And a pic of what can be done with them:
http://jimsmithbonsai.com/Plant%20I...IFOLIA%2026.htm