Dipteronia

These include a number of species that are internationally threatened: Picea brachtyla (VU), Larix mastersiana (VU), Pterostylax psilophylla (VU), Tsuga chinensis, Eucommia ulmoides, Pteroceltis tagarinowii, Euptelea pleiospermum, Dipteronia sinensis, Kingdonia uniflora and Magnolia officinalis.

Huanglong National Scenic Area, China 2009

Over 50 relict monotypic genera have survived from the Mesozoic era, 20% of China's total, among them the dove tree Davidia involucrata, Katsura tree Cercidophyllum japonicum, Chinese money maple Dipteronia sinensis, dawn redwood Metasequoia glyptostroboides (CR), Chinese bretschneidera Bretschneidera sinensis (EN), gingko Gingko biloba (EN), Tetracentron sinensis and one-eyed grass Kingdonia uniflora. 50 genera are endemic to China (20% of its total) and 67 plant species are nationally protected.

The Sichuan Giant Panda Sanctuaries, China 2009