any of several green or yellow lichens of the genus Usnea, having long, threadlike stems in a tangled mass typically hanging from tree branches, and growing in a wide range of habitats from tropical zones to the Arctic.
a shrub or small tree, Chionanthus virginicus, of the olive family, native to the southern U.S., bearing open clusters of white flowers with long, narrow petals.
a woody vine, Clematis vitalba, of the buttercup family, native to Europe and northern Africa, having long-plumed fruit and slightly fragrant, white flowers.
