69. Populus X canadensis Moench, Verz. Ausland. Baume. 81. 1785.
加杨 jia yang
Populus euramericana (Dode) Guinier.
Trees to more than 30 m tall; trunk erect; bark rough, thick, deeply furrowed; crown ovoid. Branches spreading; sprouts and seedling stem conspicuously angled or not; branchlets terete, slightly angled, glabrous, rarely pubescent. Buds large, at first green, becoming brownish green, very viscid, apex decurved. Petiole long, laterally flattened; leaf blade deltoid-ovate, 7-10(-20) cm, usually longer than wide, abaxially greenish, adaxially dull green, base truncate or broadly cuneate, with 1 or 2 glands or not, margin crenate, translucent, shortly ciliate, apex acuminate. Male catkin 7-15 cm; rachis glabrous; bracts greenish brown, lacerate. Male flower: disc yellowish green, margin entire; stamens 15-25(-40). Female catkin to 27 cm when mature, 45-50-flowered. Female flower: stigma 4-lobed. Capsule ovoid, ca. 8 mm, 2- or 3-valved. Fl. Apr, fr. May-Jun. 2n = 36*, 38*.
* Widely planted. Anhui, Gansu, Hebei, Heilongjiang, Henan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi, Sichuan, Yunnan, Zhejiang
Used for timber and planted for reforestation.