Limestone Incense‒cedar

Calocedrus rupestris is a species of conifer in the cypress family, Cupressaceae, discovered in highly eroded rocky limestone mountains in northern Vietnam and first described in 2004. It also occurs in China.

Calocedrus rupestris is a medium-sized tree growing up to about 25 meters tall, with a trunk up to 1.2 meters in diameter. Many of the specimens observed in the wild were estimated to be some 600 to 800 years old, on the basis of preliminary year-ring observations.