European Mountain Ash         SOR-bus aw-ku-PAH-ree-a

• Broadleaf deciduous tree, 20-40 ft (6-12 m), spread 2/3's of this, upright oval in youth, gracefully open at maturity.  Leaves alternate, pinnately compound, 13-23 cm long, 9-15(19) leaflets, each 2-6.5 cm long, oblong to oblong-lanceolate, tip acute to obtuse, margin serrate but frequently entire in lower third,  Terminal buds, woolly, 13 mm long, lateral buds have several scales.  Fruit (6-9 mm diam.) yellow to red, in showy clusters.
• Sun to part shade, prefers acid soils.  Does not do well in compacted soils and polluted atmospheres.  High summer temperatures appear to limit growth.
• Hardy to USDA Zone (2) 3      Native range from Europe to western Asia and Siberia.
• Several cultivars, some of which are actually hybrids.
• Oregon State Univ. campus: southwest of Fairbanks Hall, between the sports field and the sidewalk along Jefferson Way.