Botanical name: Allamanda blanchetii Family: Apocynaceae (oleander family)
Synonyms: Allamanda violacea
This shrubby climber is an Allamanda hybrid or selection of unknown origin with large ( 4"-6") deep purple flowers. There is a more common selection known as Allamanda "Cherries Jubilee" which has lighter purple flowers with yellow in the throat. Allamandas come from tropical South America. Allamanda is in the Apocynaceae family which includes Plumeria, Carissa, Ochrosia, Adenium, Mandevilla, Nerium oleander, Thevetia and others. All plants with milky sap like these (also typical of the castor family) are potentially toxic - though a few, like Carissa, are not. One can identify this family easily by the trumpet-shaped flowers that have radially symmetrical lobes that are usually twisted like little propeller blades as well as the milky sap.
The flower labeled Purple Allamanda is ...