Yahweh God prepared a vine, and made it to come up over Jonah, that it might be a shade over his head, to deliver him from his discomfort. So Jonah was exceedingly glad because of the vine.
(56) Much has been written on the character of this plant. Modern critics have pretended to determine that it was the Ricinus , commonly called Palma Christi . It matters not what it was: its growth was doubtless miraculous. It may have been an indigenous plant, it may have been such a plant as never grew before or after. Two things are evident — God prepared it, and prepared it to shelter Jonah. In a translation it would have been better either to retain the original name, or to give it the general name of a plant or shrub. To call it a gourd, an ivy, or a cucumber, is to convey an incorrect idea. — Ed. 