Digitalis lanata Ehrh.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Biennial or more often perennial, 3–10 dm, villous in the infl; cauline lvs narrowly oblong, sessile, entire or nearly so, glabrous beneath; sep lanceolate, densely villous, 7–10 mm; cor white to pale yellow 2–3 cm, the tube strongly inflated, veined with brown or violet, the lower median lobe prolonged, 8–13 mm, much surpassing the lateral ones; 2n=56. Native of s. Europe, rarely escaped from cult. in our range. Summer. Produces a variant form of digitalis.