Mountain Ash

Genus Sorbus
Rose Family (Rosaceae)

Leaves of a Mountain Ash

Mountain Ash
(Sorbus scopulina)

This is a small tree -- only about 8 or 10 feet tall. It usually branches from the base, rather than having a definite central trunk.

It is commonly found growing in the shade of larger trees, such as aspen groves.

Mountain Ash leaves and fruits

It has compound leaves, each with about 11 leaflets. Each leaflet has toothed edges, and is 1 or 2 inches long.

In late summer, the clusters of orange-red fruits appear. They are a food source for birds.

Mountain Ash leaves in the fall

The leaves turn various shades of red, orange (or sometimes yellow) in the fall.