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FOC | Family List | FOC Vol. 4 | Salicaceae | Populus

55. Populus haoana W. C. Cheng & C. Wang in C. Wang & S. L. Tung, Bull. Bot. Lab. N.-E. Forest. Inst., Harbin. 4: 17. 1979.

德钦杨 de qin yang

Trees to 20 m tall; bark gray, smooth. Branchlets dull brown or russet, stout, downy or glabrous. Buds downy, slightly viscid. Leaves of short branchlets with petiole terete, 4-7 cm, densely downy; leaf blade ovate-orbicular or ovate to long ovate-elliptic, 10-18(-22) × 5-11 cm, abaxially pale, pilose, densely downy along veins, adaxially dull green, downy along veins, base cordate or deeply so, margin glandular serrate or crenate-serrate, apex shortly acuminate, often twisted. Fruiting catkin 8-40 cm; rachis pubescent or glabrous. Capsule ovoid, 3- or 4-valved, subsessile or stipitate. Seeds brown, more than 1 mm.

* Forests, mixed woods, valleys, mountains; 2200-3600 m. SE Sichuan, NW and S Yunnan

Similar to Populus szechuanica var. tibetica but branchlets, petiole, leaf veins, and catkin rachis densely pubescent; leaves larger.

1 Fruiting catkin ca. 8 cm.   (2)
+ Fruiting catkin 10-40 cm.   (3)
2 (1) Capsule ca. 5 mm   55d var. microcarpa
+ Capsule ca. 12 mm   55b var. macrocarpa
3 (1) Leaf blade 10-18 cm, margin glandular serrate; fruiting catkin to 18 cm; rachis pubescent   55a var. haoana
+ Leaf blade 22-35 cm, margin glandular crenate-serrate; fruiting catkin to 40 cm; rachis glabrous   55c var. megaphylla

Lower Taxa


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