Ostrya trichocarpa D. Fang & Y.S. Wang:
China (Asia)

Trees to 18 m tall; bark gray-brown. Branchlets purplish brown, densely yellow pilose when young. Petiole 3-5 mm, densely brown-yellow pilose; leaf blade ovate or ovate-elliptic, 5-10.5 × 2.5-5 cm, abaxially gray-green, densely pubescent, adaxially sparsely pilose or glabrous, base subobliquely cordate, margin irregularly and doubly setiform serrate, apex acuminate; lateral veins 14-20 on each side of midvein, ca. 5 mm apart. Female inflorescence densely racemose, 4.5-8 × 2-3 cm; peduncle densely yellow-brown pilose; bracts elliptic, saccate, 1.5-2.4 × 1-1.5 cm, membranous, sparsely pubescent, base rounded, setose, apex acute; veins reticulate. Nutlet light brown, obovoid, 5.5-9 × 2.5-3.5 mm, densely pubescent, obscurely ribbed; persistent perianth more than 1.5-5 mm as long as nutlet, densely pubescent, toothed at apex. Fl. Apr-May, fr. Jun-Aug.

* Subtropical forests on limestone mountains; 800-1300 m. SW Guangxi