This Native Plant Trust comprehensive survey covers more than 40 common and representative genera of grasses. The first day of this two-day workshop includes a talk and discussion, microscopic examination of specimens, and observation of dried plants; the second day is devoted to field studies. The class will be taught by Dennis Magee at Garden in the Woods, and is $132 for NPT members, $160 for nonmembers. Cosponsored by the Massachusetts Association of Conservation Commissions. Register at www.nativeplanttrust.org.