Origin: in Mandan, N.D., by W.P. Baird, Northern Great Plains Field Sta. Introd. in 1957. Open-pollinated seedling of Prunus nigra 'Ojibwa'; selected in 1942; tested as Mandan 42-4. Tree: hardy; bears heavily annually; growth moderate, slightly spreading; most branches with wide-angled crotches. Recommended in the northern Great Plains area where a hardy native plum of superior quality and a good pollinator for other plums is desired. Fruit: large for a native plum, averaging about 20 per lb.; skin bright red, tender; flesh firm, juicy, sweet; flavor excellent; cooking tests rate high; usually ripens in late August.
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