Shrubs 2-4 m; lvs lanceolate or lance-ovate, 1-2 dm, serrate, tomentose beneath; fls in slender panicles 1-2 dm; cor 1 cm, salverform, lilac with orange center; 2n=76. Native of China, escaped from cult. here and there in our range. July-Sept.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.