"foxglove" is the common name for plants from the digitalis species.
The modern drug digitalis is extracted from digitalis lanata -- the wooly balkan foxglove. http://tinyurl.com/l63o8su digitalis or digoxin
can be synthesized, but it's less expensive to extract it from digitalis lanata. Foxglove as a whole plant contains other constituents as well -- and use isn't recommended due to toxicity.