©Conifers.org/Jacobson

BEIJING — Thuja sutchuenensis is an endangered gymnosperm plant unique to China. Originating from the age of dinosaurs over 100 million years ago, it flourished during the Cretaceous period. Harboring irreplaceable genetic resources, it is known as the “plant giant panda.” Thuja sutchuenensis was first discovered in 1892. Today, the peaks in Chongqing’s Kaizhou district, Chengkou county, Wuxi county and Sichuan Province’s Xuanhan county are the remaining habitats for this relic plant. …In 1998 it was declared extinct. Later, local Chongqing researchers rediscovered wild Thuja sutchuenensis trees on remote cliffs. …To date, the reserve has discovered over 7,800 wild Thuja sutchuenensis trees, establishing China’s first regional resource database that maintains a standard of “one file per tree.” Neighboring Chengkou county also recently discovered an area of over 5,000 trees.