Sorbus scropulina

Cascade Mountain Ash

aka Western Mountain Ash, Greene’s Mountain Ash. This large shrub, growing to 13′ (4 m), is the lesser known of the two species in the Park. It has sharply pointed leaflets which are toothed along the entire edge. The other species, Sitka Mountain Ash, Sorbus sitchensis, has leaflets which are rounded at the tips and are toothed only above the midpoint. Clusters of small (1/4″ – 1/2″) creamy white flowers give way to bright red or orange berries in the fall. Usually found in openings in woods and on slopes between 4,000′ to 9,000′ elevation.

Family:

Rosaceae - ROSE FAMILY

Genus:

Sorbus from ancient Latin name possibly referring to some kind of oak

Species:

scopulina means 'of the rocks' referring to rocky habitat
Photo location: Crystal Peak Trail.