Greene’s mountainash – Sorbus scopulina

Pronunciation: sor’-bus skop-you-lee-nah

Leaf: Leaflet: 11 - 15, small, each 1 to 2 ½ inches long. Sharply serrate nearly to the base. Lanceolate shaped, short-pointed. Leaf 5 - 7 inches long.

Bud: Terminal buds are long (over ¼ inch), tapered, pointed at end, and slightly twisted. Scales open up to expose grayish-white hairs. Large and sticky

Leaf Scar: Narrow, raised, V-shaped. 5 bundle scars.

Stem: Reddish-brown, woolly, light lenticels.

Bark: Thin, shiny, grayish-green to brownish-green with numerous lenticels.

Pith: 5-sided or roundish, brown, continuous.

Flower: 5 creamy white petals in May. Large, upright, flat-topped clusters, 4 - 6 inches wide.

Fruit: Large clusters of bright reddish-orange, ¼ - ½ inch diameter pomes.

Habit: An erect deciduous shrub growing to 15 feet tall, often forming thickets

Culture: Moderate moisture requirement. Full sun. Prone to fireblight.

Sorbus scopulina - Greene's mountain-ash Latin name for Sorbus domestica/growing on cliffs.