In New Zealand. Sophora tetraptera. See kowhai.(noun)
The Century Dictionary (Public Domain)
Use "locust-tree" in a sentence
"Pepper-trees very beautiful, and the locust-tree not amiss."
"A locust-tree in front of the jail had been used for a whipping-post, and they were very desirous that it should be cut down."
"Such an epithet might have been borne out by the wildness of her looks, the darkness of her eyes, the simple arrangement of her coal-black hair -- which instead of being confined by comb or fillet, was twisted round a thorn cut from the nearest locust-tree -- and by the smallness of her stature, though the lightness and European tinge of her complexion must have instantly disproved the idea."