Flowers:
Green (Late spring; yellow-green monoecious flowers: males are catkins while females are terminal spikes; not ornamentally important)
Foliage:
Green (Dark green, coarse textured pinnately compound summer foliage); Yellow (Fall color; not overwhelming)
Fruit:
Green;black (Green immature nut; black mature nut)
Soil:
Widely adapted to soils; prefers moist, rich, bottomland soil
Diagnostic Characteristics:
Leaves (10-20" long) are alternate and odd-pinnate compound with 11-19 (J. nigra has 15-23) oblong to lanceolate, pubescent leaflets, each 2-5" long. Glands are present on the lower side of the leaflets. Petioles have sticky hairs. The hard shelled nuts are 1.5-2.5" long and are more oblong than J. nigra. The paler bark is ridged and fissured, but less so than J. nigra.
