Medicinal Plants - old US map

"Medicinal Plant Map of the United States of America." Edwin Newcomb and the National Wholesale Druggists' Association, 1932.

This map of medicinal plants depicts one or two important species that grew in each state in 1932, identifying the plant as native or cultivated and describing its medical uses. A few species of seaweeds float in the map's Atlantic Ocean, and the border identifies important medicinal plants from around the world... 


History of medicinal plants: Map of the plants in the United States from 1932.