Quercus × celtica Vazquez & al.

SW Portugal (Alentejo Region, near coast).

often less than 3 meters tall;

leathery 4-8 x 3-6 cm, adaxially becoming glabrous, abaxially minutely tomentose to glabrescent, lanceolate to oblong-spatulate, apex acute, base cordate ; margin serrate or sinuate-lobate, with acute, triangular mucronate lobes; vein pairs 3-6, sinuate; petiole tomentose 0.2-0.8 cm;

sterile plant;

with parents, in forests of Q. suber;