Wormwood

From: Boyd's Bible Dictionary: W By: James P. Boyd

A bitter plant found in Palestine, and often mentioned in Scripture in connection with gall to denote what is offensive and nauseous

(Deut. 29:18; Prov. 5:4; Jer. 9:15; 23:15; Lam. 3:15,19; Amos 5:7).