Fraxinus pennsylvanica Marsh. Red Ash or Green Ash Native to east and central N. America, also grown for timber in central and southern Europe. Height to 12-18m (40-60ft). Male and female flowers are produced on separate trees, in April, just as the leaves are beginning to emerge. Fruit is about 2.5-6.2cm (l-2½in) long and may be pointed at the tip. Leaves have 7-9 leaflets and may be similar to those of Oregon Ash (F. latifolia) but side leaves have short stems. Bark has scaly ridges and may be red tinged. Z4.