Chrosperma.

Botanical name: 
Amianthium muscitoxicum

CHROSPERMA, Raf. Redseed. United to Melonthium and Helonias by authors. Equivalent of Abalon a narcotic poison, the roots put in molasses destroy flies.

Medical Flora, or Manual of the Medical Botany of the United States of North America, Vol. 2, 1830, was written by C. S. Rafinesque.