Paired cream-colored flowers bloom in early June, producing fused red unpalatable berries. Mountain ash grows on the lower slopes of the Tetons. This tall shrub has compound leaves. Flat-topped clusters of white flowers bloom in June. In fall bright orange fruits complement vivid red leaves.
Willows occur in moist areas, especially along stream banks.
Twenty species are found in the park and parkway. Snowbrush ceanothus thrives in burned areas. Shiny, leathery green leaves are retained through winter. Clusters of aromatic white flowers bloom in June.