Eucommia is a genus of small trees now native to China, with a fossil record that shows a much wider distribution.

The single living species, Eucommia ulmoides, is near threatened in the wild, but is widely cultivated in China for its bark, and is highly valued in herbology such as traditional Chinese medicine.

The leaves are deciduous, arranged alternately, simple ovate with an acuminate tip, 8–16 cm (3.1–6.3 in) long, and with a serrated margin.

[5] Eucommia is the sole member of the family Eucommiaceae, and was formerly considered to be a separate order, the Eucommiales.

Eucommia ulmoides is native to forest areas on hills and mountains of the provinces in central and eastern China, though it has been suggested that the species is extinct in the wild.