Volunteer Rediscovers Rare Plant Not Seen in Wisconsin for Over 100 Years

Volunteer Rediscovers Rare Plant Not Seen in Wisconsin for Over 100 Years WIS. DEPT. OF NATURAL RESOURCES The Wisconsin Department of Natural Resources (DNR) announced that a population of Maryland senna (Senna marilandica), a rare plant not seen in Wisconsin since 1911, was rediscovered in southwest Wisconsin. George Riggin, a trained volunteer for the DNR’s Rare Plant Monitoring Program,