Ulmus multinervis W. C. Cheng ex Yi F. Duan & X. R. Wang

Trees, to 20 m, d.b.h. to 50 cm, deciduous. Bark pale gray to blackish brown, thick, with a corky layer, longitudinally fissured. Branchlets thick, unwinged and usually without a corky layer, with yellow to brownish yellow lenticels; first year branchlets white to reddish brown, densely villous; second year branchlets grayish brown to dark brownish gray, ± pubescent or glabrescent. Winter buds ovoid, usually slightly compressed; bud scales densely pubescent. Petiole 1-12 mm, densely pubescent; leaf blade oblong-elliptic, narrowly elliptic, oblong-ovate, obovate-oblong, or obovate-elliptic, 8-15 × 3.5-6.5 cm, abaxially densely pubescent and with tufted hairs in vein axils, adaxially smooth or ± scabrous, densely hirsute when young, and glabrescent but ± pubescent on main secondary veins with age, base distinctly oblique, margin doubly serrate, apex long acute to cuspidate; main secondary veins depressed; secondary veins 16-35 on each side of midvein. Inflorescences fascicled cymes on second year branchlets. Perianth 4- or 5-lobed, glabrous or margin ciliate. Samaras tan, oblong-obovate, obtriangular-obovate, or obovate, 1.6-3 × 1-1.6 cm, glabrous except for pubescence on stigmatic surface in notch; stalk shorter than perianth, densely pubescent; perianth persistent. Seed toward apex of samara. Fl. and fr. Feb-Apr.

Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan, Yunnan, Zhejiang.

* Broad-leaved forests; 500-1600 m.

Ulmus ferruginea W. C. Cheng; U. multinervis W. C. Cheng.

Ulmus castaneifolia là một loài thực vật có hoa trong họ Ulmaceae. Loài này được Hemsl. miêu tả khoa học đầu tiên năm 1894.

多脉榆（学名：Ulmus castaneifolia）是榆科榆属的植物，为中国的特有植物。分布在中国大陆的湖南、福建、江西、贵州、广西、湖北、云南、浙江、安徽、四川、广东等地，生长于海拔500米至1,600米的地区，一般生于山地和山谷的阔叶林中，目前尚未由人工引种栽培。