We started growing this tomato years ago with seeds from Baker Creek Heirloom Seeds. We've found it to be one of the most reliably drought-tolerant tomatoes around and we enjoy the extra-tart taste even out of hand. Here is Baker Creek's description: "Determinate. A very acid, almost sour-tasting tomato that is best for cooking uses. This tomato comes from Mosul (formerly Nineveh) Iraq, but is now said to be lost to cultivation due to the long on-going war and promotion of hybrid and gene-altered seeds. Bush plants set bright red, small to medium sized fruit. From Aziz Nail, an Iraqi friend that supplied us with a few seeds."