Any plant of the genus Digitalis. The common English foxglove (Digitalis purpurea) is a handsome perennial or biennial plant, whose leaves are used as a powerful medicine, both as a sedative and diuretic. See Digitalis.
- Any of several herbs of the genus Digitalis, especially D. purpurea of Europe, having a long cluster of large, tubular, pinkish-purple flowers and leaves that are the source of the drug digitalis.
- Any of several related plants.