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FNA | Family List | FNA Vol. 9 | Rosaceae | Crataegus

125. Crataegus extraria Beadle, Biltmore Bot. Stud. 1: 73. 1902.

Crataegus alleghaniensis Beadle var. extraria (Beadle) Lance

Shrubs, 25 dm. Stems: twigs ± flexuous, new growth not recorded, 1-year old reddish brown, older dark purple-brown; thorns on twigs ˂numerous˃, straight, 2-years old blackish, fine, 2–3 cm. Leaves: petiole length 33–40% blade, sparsely pubescent, sessile-glandular; blade rhombic-ovate, 3–4 cm, ˂widest towards base˃, thin, base cuneate, lobes 2 or 3 per side, obscure to short, sinuses ± shallow, lobe apex acute, margins serrulate, teeth gland-tipped, veins 4 or 5 per side, apex acuminate, abaxial surface sparsely pubescent, adaxial glabrous. Inflorescences 3–5-flowered; branches pilose; bracteoles not seen. Flowers 16–20 mm diam.; hypanthium pilose; sepals narrowly triangular, margins glandular-serrate; stamens 12–15(or 20), anthers dark purple; styles 2 or 3(or 4). Pomes red (yellow-orange immature), suborbicular, 9–12 mm diam., glabrous; sepals ˂on collar˃, spreading; pyrenes 4.

Flowering Apr–May; fruiting Sep–Oct. Brush; 50–500 m; Ala., Ga., N.C., Va.

Crataegus extraria has always been very rare, occurring in scattered localities in North Carolina and Virginia.

As treated here, there is considerable extension to forms beyond the typical that may include hybrids.


 

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