'Palm trees' in the Bible

And the children of the Kenite, Moses brother-in-law, went up out of the city of palm-trees with the children of Judah into the wilderness of Judah, which is in the south of Arad; and they went and dwelt with the people.

And he gathered unto him the children of Ammon and Amalek; and he went and smote Israel, and they possessed the city of palm-trees.