Who was the poinsettia named after?

The French language is the source of the Word "poinsettia" (Eurphorbia pulcherrima).

Specifically, the Word adds to the French family name Poinsett the suffix "-ia." Joel Roberts Poinsett (March 2, 1779 - December 12, 1851) is the individual responsible for the introduction of the December-blooming plant into the United States of America. As a trained botanist, he noticed the plant in its native habitat in southwestern Mexico. He realized the scientific interest and the cultural import of such a beautiful, late-flowering plant and began sending specimens to select botanist friends in 1828.