Azalea.

AZALEA, L. Beautiful ornamental genus of shrubs, with fragrant splendid blossoms, often called Swamp Pink, Wild Honey-suckle, Springbloom. Cutler says that the blossoms are made into fragrant conserves in the North. (I'd be careful with that. -Henriette)

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