'Thorn bush' in the Bible

Then appeared the messenger of Yahweh unto him, in a flame of fire from the midst of the thorn-bush, - so he looked and lo! the thorn-bush burning with fire and yet the thorn-bush, was not consumed.

And, Moses said, Let me turn aside, pray, and see this great sight, - why the thorn-bush, doth not burn up.

And Yahweh saw, that he turned aside to see, - so God called unto him out of the midst of the thorn-bush, and said - Moses! Moses! And he said - Behold me!