Artist and farmer Howard Peller and U‑M botany professor Selena Smith discuss the importance of the willow tree in human culture and ecology, as well as the planned “Living Willow Structures” campus installation. Followed by a free, hands-on willow weaving workshop (11:30 a.m.–2:30 p.m.). 9:30–11 a.m., Stamps Gallery, 201 S. Division. Free. Preregistration required at stamps.umich.edu. (734) 936–0671.