Become an expert on “Wildflowers of New England” in an online program via Mass Audubon on Thursday, April 29th, from 7 to 8:30 p.m. Botanist Ted Elliman, who’s written a whole book on the subject, will teach you how to identify trilliums, lady slippers, jack-in-the-pulpit, and bunchberries. Registration is $24 at massaudubon.org.