Oregon Ash               FRAKS-i-nus lat-i-FO-li-a

• Broadleaf deciduous tree, 40-80 ft [12-24 m, narrow, dense crown, straight trunk.  Leaves opposite, pinnately compound, 15-30 cm long, 5-7 oval leaflets, each 5-15 cm long, 2.5-4 cm wide, elliptical, short-pointed at ends, lateral leaflets are sessile or with a short stalk (petiolule), medium to light green above and paler and slightly pubescent below; fall color is yellow or brown.  Flowers dioecious - male and female flowers on separate trees, small, about 3 mm, male flowers yellowish and female flowers greenish, both in small clusters and without petals, appear before leaves.  Fruit, single samara, 3-5 cm long, hang in dense clusters.
• Sun or part shade.  Survives standing water in winter months and, when established, need not be watered during the summer.  Valued as an ornamental tree in Europe more than here.
• Hardy to USDA Zone 6    Native to western portions of Washington and Oregon and south in the Coast Range and Sierra Nevada to Central California.  The only ash native to the Pacific Northwest.
• latifolia: with broad leaves
• Oregon State Univ. campus: large tree on the north side of USDA Forage Seed Lab. on Campus Way, near 35th St.  Also behind Dixon Lodge, corner 11th St. and Jefferson Ave.