Rowan

The rowans (a.k.a. mountain-ashes) are shrubs or small trees in genus Sorbus of family Rosaceae. They are native throughout the cool temperate regions of the Northern Hemisphere, with the highest species diversity in the mountains of western China and the Himalaya, where numerous apomictic microspecies occur.

Wandlore
Rowan wood has always been much-favoured for wands, because it is reputed to be more protective than any other, rendering defensive charms especially strong and difficult to break. It is commonly stated that no Dark witch or wizard ever owned a rowan wand and indeed there has ben no known Rowan wand that has gone on to do evil.

Rowan is most happily placed with the clear-headed and the pure-hearted, but this reputation for virtue should not deceive - these wands are the equal of any, often the better, and frequently out-perform others in duels.

Folklore
It is often said that holder of Rowan wands are prone to gossip.