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Published In: Theoretisches-praktisches Handbuch der Forstbotanik und Forsttechnologie 2: 1280. 1803. (Theor. Prakt. Handb. Forstbot.) Name publication detail

Project Name Data (Last Modified On 9/22/2017)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Introduced


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2. Malus baccata (L.) Borkh. (Siberian crab)

Pl. 533 g; Map 2456

Plants shrubs or small trees to 5 m tall, not colonial. Branchlets thornless. Twigs initially densely hairy but soon glabrous. Leaf blades rolled inward during development, 3–8 cm long, mostly 3–4 times as long as wide, oblong-elliptic to ovate-elliptic, mostly angled or short-tapered at the base, angled or tapered to a sharply pointed tip, the margins finely, evenly, and bluntly toothed, unlobed, the surfaces glabrous at maturity, the undersurface often minutely hairy when young. Flower stalks and hypanthia glabrous. Calyces not persistent at fruiting, the sepals 5–7 mm long, triangular to narrowly triangular, the outer surface glabrous or very sparsely hairy, the inner surface densely woolly. Petals 1.5–2.5 cm long, the body obovate to broadly obovate, short-tapered to a short, stalklike base, usually white at flowering (pinkish-tinged in bud). Anthers yellow. Styles (4)5, the stigmas broadly club-shaped to more or less capitate. Fruits 0.8–1.4 cm long, red to yellow or yellowish green, not glaucous. 2n=34. April–May.

Introduced, known thus far only from St. Louis City and County (native of Europe, Asia; introduced sporadically in the northeastern U.S. west to Minnesota and Missouri; Canada). Gardens and railroads.

This species was first reported for Missouri by Mühlenbach (1979) during his inventories of the St. Louis railyards. It is a commonly cultivated ornamental tree, with a variety of cultivars.



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