A central European species, widely cultivated. Collected by O. A. Farwell in 1921 as escaped at Eagle River, Keweenaw Co.

The leaves (at least the lower ones) have distinct petioles, as in C. rapunculoides and C. trachelium, but the ovaries are glabrous and the corolla distinctly open. The capsule opens by subapical pores, unlike the sometimes nearly glabrous C. rapunculoides, and the pedicels are very long.