Alder
Alder is an unyielding wood, yet I have discovered that its ideal owner is not stubborn or obstinate, but often helpful, considerate and most likeable. Whereas most wand woods seek similarity in the characters of those they will best serve, alder is unusual in that it seems to desire a nature that is, if not precisely opposite to its own, then certainly of a markedly different type. When an alder wand is happily placed, it becomes a magnificent, loyal helpmate. Of all wand types, alder is best suited to non-verbal spell work, whence comes its reputation for being suitable only for the most advanced witches and wizards.