old man's beard

noun5

1. •
   Australian clematis (Clematis aristata).
2. •
   Traveller's joy (Clematis vitalba), a climbing plant of Europe.
3. •
   Spanish moss (Tillandsia usneoides), a bromeliad of the Americas.
4. •
   Beard lichen (Usnea spp.).
5. •
   A fringe tree (Chionanthus virginicus).