Quercus × ludoviciana Sarg.

S.E. United States (especially Louisiana); natural hybrid; introduced in Europe in 1880;

20m tall; crown conical;

10-20 cm, first copper-brown, turning dark green; variously lobed on the same tree, with one larger, pointed lobe each side; lobes pointed and bristle-tipped, or broad and rounded, with or without teeth; glossy green both sides, exept many tufts along midrib; petiole 7-20 mm long;

acorn 1.2 cm cross, oblong-ovoid, rounded at apex, 1/2 enclosed by cup;

hardy; prefers lime-free soils and wet undergrowth;

– Section Lobatae; – Discovered in 1913; – Rather rare; – Solitary tree;