异叶南洋杉 yi ye nan yang shan

Eutassa heterophylla Salisbury, Trans. Linn. Soc. London 8: 316. 1807.

Trees to 50 m tall; trunk to 1.5 m d.b.h.; trunk straight; bark dark gray, flaking; crown tower-shaped; branchlets spreading horizontally or drooping; lateral branchlets usually pinnately arranged, drooping. Leaves dimorphic: those of young trees and lateral branchlets loosely arranged, spreading openly, bright green, glaucous abaxially, subulate, usually laterally depressed, upcurved, 6-12 mm, 3- or 4-ridged; those of mature trees and cone-bearing branchlets densely arranged, slightly openly spreading, broadly ovate or triangular-ovate, ± curved, 5-9 mm, widest at base, midvein obviously raised or not, apex obtuse. Pollen cones terminal, solitary. Seed cones subglobose, 8-12 × 7-11 cm, sometimes wider than long; apex of bracts triangular, flattened, acute, upcurved. Seeds ellipsoid, slightly flattened, with a lateral wing.

Cultivated. Fujian (Fuzhou Shi), Guangdong (Guangzhou Shi), S Yunnan (Jinghong Xian, Mengla Xian) [native to Australia (Norfolk Island)].