'Palm trees' in the Bible

And the sons of the Kenite, father-in-law of Moses, went up from the city of palm-trees with the sons of Judah to the desert of Judah, which is in the south of Arad; and he went up and dwelt with the people:

And he will gather to him the sons of Ammon and Amalek, and he will go and smite Israel, and will inherit the city of palmtrees.