The leaves of Arizona ash are 10-15 cm (3.9 – 5.9 in) long, odd-pinnate with 3-7 lanceolate leaflets. The upside and underside are often tomentose. The leaf margin is serrated.
The whitish-green bloom conditions are formed as lateral panicles, which sprout just before the leaves.
The branches are thin and light brown. The buds are dark brown.
floodplains– and riverbank area