Allegedly, Withering first learned of the use of digitalis in treating "dropsy" (œdema) from "Mother Hutton", an old woman who practised as a folk herbalist in Shropshire, who used the plant as part of a polyherbal formulation containing over 20 different ingredients to successfully treat this condition.

Where is Digitalis found?

Digitalis is native to Europe, western Asia, and northwestern Africa. The flowers are tubular in shape, produced on a tall spike, and vary in colour with species, from purple to pink, white, and yellow. The scientific name means "finger".

How was Digitalis discovered?

The purple foxglove, digitalis purpurea. So, Withering tried out various formulations of digitalis plant extracts on 163 patients, and found that if he used the dried, powdered leaf, he got amazingly successful results. He introduced its use officially in 1785.