Malus ioensis L.
Iowa crab (Prairie crabapple) - Malus ioensis.
Deciduous shrub up to 3-4 m high (crown diameter 4-4.5 m). In the wild, it is found in North America in the Mississippi River basin. It is very close to the apple tree Malus coronaria and is often considered by botanists to be only a more pubescent variety of the latter.
Straight strong trunk with thorny young branches. The leaves are dense, up to 8 cm long, with a felt lining and clearly defined lobes. Delicate pink flowers with purple blotches are 5 cm in diameter. Blooms in late May. The fruits ripen in September (rounded 2.5-3 cm in diameter, greenish). The plant grows from late April to early September. The growth rate is average. High winter hardiness. 
The most valuable properties of this species are the long shelf life of the fruit and the very early entry of the tree into the fruiting period (early fruiting). This species was used in breeding work to develop winter-hardy northern apple varieties that are distinguished by the shelf life of the fruit and early fruiting.

Eng.: Prairie crabapple. Bot. syn.: Malus coronaria subsp. ioensis (Alph.Wood) Likhonos, Malus coronaria var. ioensis (Alph. Wood) C.K. Schneid., Malus joensis (Alph.Wood) Britt., Pyrus coronaria L. var. ioensis Alph.Wood, Pyrus ioensis (Alph.Wood) L.H.Bailey