* Rowan

* Rowan tree

* Mountain ash (although this name is also used for other species of Sorbus)

* Quickbeam (an archaic name)

* Witchwood

* Sorb tree (scientific name: Sorbus aucuparia)

While "mountain ash" is a common name, it's important to note that it's not exclusive to the European species. Other species of Sorbus are also referred to as "mountain ash," so using the more specific name "Rowan" is often preferred.