Key to Wisconsin Lycium

Author: Theodore S. Cochrane

• 1a.Slender part of mature corolla tube (below somewhat abruptly inflated part) enclosed in the calyx tube; calyx ca. 3–3.5 mm long; corolla lobes puberulent-ciliate on the margins L. chinense

• 1b.Slender part of mature corolla tube about equaling or surpassing the calyx (at least the calyx tube); calyx ca. 3.5–4.5 mm long; corolla lobes glabrous or infrequently with a few remote longer hairs on the margins L. barbarum