Glyptostrobus

The sole living species, Glyptostrobus pensilis, is native to subtropical southeastern China, from Fujian west to southeast Yunnan, and also very locally in northern Vietnam and Bolikhamsai province of eastern Laos near the Vietnam border.

[2][3] The genus formerly had a much wider range, covering most of the Northern Hemisphere, including the high Arctic in the Paleocene and Eocene.

They open when mature to release the small, 5–20 mm (0.20–0.79 in) long, winged seeds.

Like the related genus Taxodium, it produces 'cypress knees' when growing in water, thought to help transport oxygen to the roots.

The species is nearly extinct in the wild due to overcutting for its valuable decay-resistant, scented wood, but it is also fairly widely planted along the banks of rice paddies where its roots help to stabilise the banks by reducing soil erosion.