Quercus miyagii

Quercus miyagii is a species of oak native to the Ryukyu Islands. It is placed in subgenus Cerris, section Cyclobalanopsis.

A tree typically 12 m tall, its acorns are consumed by the freshwater crabs Geothelphusa grandiovata and Candidiopotamon okinawense, which gather them and store them in their burrows.