'Tamarisk tree' in the Bible

Abraham planted a tamarisk tree in Beer Sheba. There he worshiped the Lord, the eternal God.

But Saul found out the whereabouts of David and the men who were with him. Now Saul was sitting at Gibeah under the tamarisk tree at an elevated location with his spear in hand and all his servants stationed around him.

They took the bones and buried them under the tamarisk tree at Jabesh; then they fasted for seven days.