Digitalis is a genus of about 20 species of herbaceous perennials,
shrubs, and biennials that are commonly called foxgloves.
The first year of growth of the Common Foxglove produces only
the stem with its long, basal leaves. During the second year
of the plant's life, a long leafy stem from 50 to 250 centimeters
tall grows atop the roots of healthy plants.