Ha Giang Prov., Quan Ba Distr., Can Ty Comm., Bat Dai Son NR, ca. 1200-1400 m, about 1 km to W of Dau Cau Vill., around point 23005′06” N, 105001′56” E, ridges of limestone mountains.
Usually dominant of 2nd storey of primary closed evergreen conifer submontane forests with the dominance of Pseudotsuga sinensis, sometimes mixed with Calocedrus rupestris.
Trees up to 7-12 m tall, dbh 0.3-0.4 m, rarely more