About Quercus rysophylla Weath.
Quercus rysophylla Weath. is a large tree that can reach up to 25 metres (82 feet) in height. Its bark is smooth and pale gray when young, becoming rough, deeply cracked, and dark gray as the tree ages. The leaves are lanceolate, or lance-shaped, and grow up to 21 centimetres (8+1⁄4 inches) long. It produces biennial acorns that ripen in the year after flowering. This species typically grows in humid canyons and on north-facing slopes, within cloud forests, oak forests, and oak-pine forests. It grows on both limestone and igneous substrates, and is generally found at elevations between 500 metres (1,600 feet) and 1,700 metres (5,600 feet). The largest known population of Quercus rysophylla occurs in Cumbres de Monterrey National Park, and the species is also present in the Sierra Gorda Biosphere Reserve.
