Old man's beard may refer to the following:
- Chionanthus virginicus, a tree, which is used like a medicinal plant and ornamental plant.
- Clematis aristata, an Australian climbing plant.
- Clematis vitalba, a climbing plant.
- Tillandsia usneoides, "Spanish moss" - a bromeliad.
- Usnea, a genus of lichen.
This page is an index of articles on plant species (or higher taxonomic groups) with the same common name (vernacular name).
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If an internal link led you here, you may wish to edit the linking article so that it links directly to the intended article.