What is "polyanthe"

Alexandre Chaponnier called Polyanthe (24 February 1793 in Paris – 26 July 1852 in the 10th arrondissement of Paris) was an 19th-century French physician, painter, engraver, and playwright.

Also known under the sole first name Alexandre, he was the son of the French painter and engraver of Swiss origin Alexandre Chaponnier (Genève 1753-Paris 1835).