hexenbesen
/ˈhɛksənˌbeɪzən/
noun
- A dense, broom-like cluster of twigs in a tree or shrub, caused by a fungus or mite; also called a witch's broom.
- The old oak tree had a large hexenbesen high up in its branches.
- The hexenbesen on the birch tree looked like a bird's nest from a distance.
- Gardeners sometimes prune hexenbesen to keep the plant healthy.