Origin: in Mandan, N.D., by William A. Oitto, Northern Great Plains Res. Center. Introd. in 1965. Wealthy × Whitney crab apple; tested as Mandan 42-13. Tree: spreading; vigorous; productive; hardy. Primarily for the home garden. Fruit: large, up to 3 inches in diam.; round-oblate; stem slender, long; skin an attractive deep red over yellow, sometimes with very dark red splotches; flesh creamy yellow, crisp, juicy, firm, fine-grained, sprightly subacid; excellent for dessert and culinary uses; ripens in mid-September; keeps in common storage for several weeks.