About Quercus canbyi Trel.
Quercus canbyi Trel. is a semi-evergreen to evergreen tree. In cultivation, it reaches 12–15 metres (40–50 feet) tall, while wild specimens in Mexico can grow as tall as 24 metres (80 feet). It begins growth with a pyramidal shape, and matures into an open, irregular form. Mature trees reach a spread of 9.1–12.2 metres (30–40 feet) wide. Its dark, glossy green leaves are 15–20 centimetres (6–8 inches) long with serrated edges, and its petioles may have a reddish color. The tree blooms in March, and acorns appear in August. It was previously distinguished from Quercus graciliformis by its twig shape and by producing acorns biennially instead of annually, but as of February 2023, Plants of the World Online treats the two species as synonymous. This species has only been found in Texas and northeast Mexico. In cultivation, Quercus canbyi tolerates most soil types, and is planted in gardens as a shade tree.
