Develop or enhance your ability to identify winter trees by twig and bud anatomy, bark features and plant architecture, in this Saturday, December 12 class at Berkshire Botanical Garden in Stockbridge, Massachusetts, from 10 – 2. Students will practice their skills with winter tree dichotomous keys. This class will be indoors primarily and participants will work with collected specimens. Class enrollment is limited. Bring a bag lunch. Dress for limited outdoor fieldwork, since it’s December, after all. BBG members $30, nonmembers $35. Register at http://www.berkshirebotanical.org/ or call 413-298-3926.