Fraxinus mandshurica (Manchurian Ash) is a species of Fraxinus native to northeastern Asia in northern China , Korea, Japan and southeastern Russia . It is a medium-sized to large deciduous tree reaching 30 m tall, with a trunk up to 50 cm in diameter.
The leaves are 25–40 cm long, pinnate compound, with 7-13 leaflets, the leaflets 5–20 cm long and 2–5 cm broad, subsessile on the leaf rachis, and with a serrated margin. They turn to a golden-yellow in early autumn, and the tree is usually early to change color.
The flowers are produced in early spring,before the new leaves, in compact panicles; they are inconspicuous with no petals, and are wind-pollinated. The fruit is a samara comprising a single seed 1–2 cm long with an elongated apical wing 2.5–4 cm long and 5–7 mm broad.