locust tree

Named after the "locusts" said to have been eaten by John the Baptist, based on the theory that they were really carob pods.

locust tree (plural locust trees)

1. (botany) Any of a number of similar looking trees in the genera Gleditsia and Robinia.
   1. The honey locust Gleditsia triacanthos, a leguminous tree with pods having a sweet, edible pulp.
   2. The black locust, Robinia pseudoacacia, a leguminous tree with toxic pods, but useful for making honey.
2. (botany, less common) The African locust bean tree (Parkia biglobosa).
3. (botany) The carob tree, Ceratonia siliqua.

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