Join Sam Saulys, an avid and expert botanist, as she walks on the Van Wie Preserve to see and identify spring wildflowers. Expect moderate terrain, with sloping trails and inclines, and rocky under footing. Bring water. Walking sticks welcome. Meet at the trailhead at 87 Red Hill Rd. welcome. For details, call 203-415-1571. (Rain date: May 8, 1:00pm)