Calycanthus floridus.

Botanical name: 

CALYCANTHUS FLORIDUS, L. Sweet Shrub, Allspice. Fine shrub, much esteemed for the blossoms, smelling like Pine-apple. The bark is aromatic, similar to cinnamon, the seeds taste like Pimento: often used in the South for substitutes to spices; yet said to poison dogs and wolves. The root is a very strong emetic.

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