'Palm trees' in the Bible

Now Hobab the Kenite, Moses' father-in-law, had come up out of the town of palm-trees, with the children of Judah, into the waste land of Arad; and he went and was living among the Amalekites;

And Eglon got together the people of Ammon and Amalek, and they went and overcame Israel and took the town of palm-trees.