Oaks of the World

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 Quercus coccinea
Author Muenchh. 1770 Hausvater 5: 254 1770.
Synonymscoccinea var. tuberculata Sargent 1922
coccinea var. rugelii A.DC 1864
repanda hort.
Local namesscarlet oak
RangeEastern USA; to 1500 m; introduced in Europe in 1691;
Growth habitreaches 25 m tall; lower part of the trunk without dead wood;
Leaves 7-20 x 5-13 cm; base truncate or rarely cuneate; 3-5 lobes each side of the midrib; lobes paired often unequally; veins not opposite, ending into bristle-tips; rather deep sinuses, widely rounded; lustrous dark green above, paler beneath with prominent whitish veins; glabrous except sometimes axillary tufts; purplish at fall; petiole slender, hairless, yellow, 2.5-6 cm long;
Flowersin spring; male catkins 6-8 cm;
Fruitsacorn oval, 1.2-2.5 cm, red brown, rarely striate; sessile or short-stalked; enclosed 1/2 or 1/3 by cup; cup half-round, deep, shiny, often with warted scales; maturing in 2 years;

Bark, twigs and
buds

bark grey, warty, finely fissured into reddish inside scales; twigs red brown above, olive beneath, glabrous, angled, with lenticels; bud ovoid, pointed, hairy, with apically light red brown edged scales, 4-7 mm long;
Hardiness zone, habitathardy; prefers acidic soils; fast growing;
Miscellaneous-- Sub-genus Quercus, section Lobatae;
-- different from other red oaks in the rounded sinuses and the large central lobe;
-- hybridizes with Q.ilicifolia (= x
robbinsii), Q.velutina (= x fontana), Q.palustris ;
Subspecies and
varieties
-- cultivar 'Splendens' shows conspicuous autumn colors ; cultivated since 1893;
-- var. tuberculata has a very warty acorn cup;
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