Ostryopsis is a small genus of two species of deciduous shrubs belonging to the birch family Betulaceae. The species have no common English name, though Hazel-hornbeam has been suggested, reflecting their similarities to the closely related Hazels and Hop-hornbeams.
The genus is native in western China and Mongolia. They are shrubs reaching 3-5 m tall, with alternate, double-toothed hazel-like leaves 2-7 cm long. The flowers are produced in spring, with separate male and female catkins. The fruit form in clusters 3-5 cm long with 6-10 seeds; each seed is a small nut 4-6 mm long, fully enclosed in a sheath-like involucre.