Monday, May 3, 2010

Robinia pseudoacacia - Black Locust

Robinia pseudoacacia: Robinia, named for Jean Robin, gardener for Henri IV and Louis XIII. He received new plants from Canada; pseudoacacia, meaning "false acacia."

Tall, narrow, fast-growing tree with a round head.

Pinnately compound leaves 12" long with oval leaflets.

White pea-like flowers. Not all cultivars have a scent.

Flowers held in 4"-8" long racemes.

Prolific production of seed pods / legumes in summer and fall.

Twigs are reddish brown with 1/2" spines.

Grey to tan bark tends to furrow in diamond patterns. Wood is brittle.

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