Chromolaena oteroi

Chromolaena oteroi (Mona Island thoroughwort) is a species of flowering shrub in the sunflower family. It has been found only on Mona Island, a small island between Puerto Rico and Hispaniola in the West Indies and politically a part of the Commonwealth of Puerto Rico.
The shrub, with its pale purple flowers, was named after botanist José I. Otero.