'Weeds' in the Bible

Therefore, as surely as I live," says the Lord who commands armies, the God of Israel, "be certain that Moab will become like Sodom and the Ammonites like Gomorrah. They will be overrun by weeds, filled with salt pits, and permanently desolate. Those of my people who are left will plunder their belongings; those who are left in Judah will take possession of their land."