Quercus obtusata is an oak in the white oak group (Quercus sect. Quercus) endemic to Mexico, with a distribution ranging from San Luis Potosí and Nayarit south to Oaxaca, from 620 to 2800 MSL.[1] [2]
Quercus obtusata is a tree up to 20m (70feet) tall with a trunk sometimes more than 60cm (20inches) in diameter. The leaves are thick and leathery, up to 22cm (09inches) long, widely egg-shaped with 3–9 pairs of shallow rounded lobes or undulations.[2] [3] [4]
Resembles Q. potosina, which has smaller leaves (3–10 x 2–6 cm); also resembles Q. rugosa, this one has a convex leaf strongly coriaceous, a revolute margin, the epidermis bullate; at least, one can differentiate Q. obtusata from Q. laeta, which has foliar underside glaucous, without masses of glandular secretions, none or rare glandular trichomes, a leaf more oblong than oboval with a margin sometimes entire.