Engelmann'S Hawthorn (Crataegus engelmannii)
Description
Small tree to 6 m (20 ft) in height and 15 cm (6 in) in diameter. Crown broad, spreading with a flat top. Twigs light brown, with large lenticels, white pubescence on young stems, becoming glabrous with age; spines slender, about 5 cm (2 in) long. Leaves alternate, simple, reverse-ovate to elliptical, 2.5-3.8 cm (1-1.5 in) long and 1.3-2.5 cm (0.5-1 in) wide, with short stiff hairs above, pilose hairs above and beneath on the midrib; rounded or short-pointed at apex, margins glandular-serrate with incurved teeth; lustrous dark green above, paler below; petioles short, glandular pilose. Flowers 8-12 in cymes, with long pale hairs, about 2 cm (0.75 in) long, tomentose, villose, or nearly glabrous; petals 5, white; styles 2-3; stamens 10; flowers appear from April to May. Fruits pomes, about 8 mm (0.3 in) diameter, globose, orange-red; 2-3, thick and prominently ribbed; fruits mature in November.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Rosales
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Family: Rosaceae
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Genus: Crataegus
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