Crataegus ambigua, C. A. Meyer ex A. Becker

13. C. ambigua C. A. Meyer ex A. Becker View in CoL , Bull. Soc. Nat. Moscou 31 (1): 12,34 (1858)

( C. volgensis Pojark. ).

Shrub or small tree up to 8 m; twigs glabrescent, dark brown; spines 8-15 mm or absent. Leaves 40-80 x 40-80 mm, ovate, broadly cuneate, thin, with hair-tufts in axils of veins beneath, main veins curving towards base of leaf; lobes 5-7(-9), oblong, acuminate, acutely serrate in the apical half, extending more than | of the way to the midrib; stipules entire, subulate. Corymb and hypanthium villous, later glabrescent; flowers c. 15 mm in diameter. Sepals 2-3 mm; styles (l-)2. Fruit 11-14 mm, subglobose, dark red, crowned by patent sepals; pyrenes (1-)2. Wooded mountainslopes. S. Russia, E. Ukraine. Rs (C, W, E).