Oaks of the World

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  Quercus lyrata
Author Walt. 1788
Synonyms bicolor var. lyrata (Walt.) Dippel 1891
Local names overcup oak ; swamp post oak ;
Range Southeastern United States, from New Jersey to Texas; 0-200 m ; introduced in Europe in 1786;
Growth habit 15-25 m ; crown rounded, with numerous branches; trunk short, often tortuous;
Leaves 10-20 x 4-10 cm; oboval, lyre-shaped; apex pointed or obtuse; base cuneate attenuate; 3-5 pairs of lobes, very shallow near base; dark green, hairless obove; silvery tomentose beneath at first, becoming more or less glabrescent; 5-8 vein pairs; petiole 1 to 2.5 cm long, slender, orangish yellow;
Flowers  
Fruits acorn 2.5-5 cm long, subglobose, minutely puberulent; singly or paired; almost all covered by scaly, subsessile cup; maturing in 1 year; cotyledons distinct;

Bark, twigs and
buds

bark light grey brown, fissured into plates; twig thick, reddish grey, hairy becoming glabrous, with small grey lenticels; buds 3 mm long, with grey pubescence;
Hardiness zone, habitat hardy; prefers moist soils; slow-growing;
Miscellaneous -- A. Camus : n° 277 ;
-- section Quercus ;
-- hybrids with Q.virginiana (= x comptoniae), bicolor (= x humidicola), macrocarpa (= x megaleia), stellata (= x sterrettii), michauxii (= x tottenii) ;
Subspecies and
varieties
 
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