'Tamarisk tree' in the Bible

Then planted he a tamarisk tree in Beer-sheba, - and called there on the name of Yahweh the age-abiding GOD.

And, when Saul heard that David was discovered, and the men that were with him - Saul, being seated in Gibeah under the tamarisk-tree in Ramah, with his spear in his hand, and all his servants stationed by him, -

and took their bones, and buried them under the tamarisk-tree in Jabesh, - and fasted seven days.