Mary Cassatt Lilacs print. Oil painting on canvas from 1880. American artist Mary Cassatt was one of the great female impressionist painters. Lilacs in a Window is a beautiful and simple painting featuring a bunch of freshly cut lilacs in a purple vase sitting on a windowsill. The lilacs are both purple and white and their foliage is still dark green. A beautiful gift for fans of Mary Cassatt, impressionism, lilac paintings, and American women painters.