Common Name:
bristly
locust
Common Name Synonym:
rose acacia
Scientific Name:
Robinia hispida
Family Name:
Fabaceae (Leguminosae)
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Pea or Bean Family
Life Cycle
introduced perennial, reproducing by seed and creeping roots that produce suckers
Stems
woody, upright shrub or small tree, red bristly hairs when young, mature stems gray-brown with raised lenticels, zig-zagged, two rigid thorns at nodes
Leaves
alternate, pinnately compound with 9 to 13 leaflets, leaflets oval and entire, smooth, green above and lighter below
Flowers
5-petaled, pea-like, pink to rose with cream to yellow spot in center; axillary racemes, drooping, stalks bristly
Fruit
pods flat, very bristly