川柳Salix hylonoma Schneid.

别名：小叶柳;林中柳;长腺柳;长序柳;

科名：杨柳科 Salicaceae

属名：柳属 Salix

《中国植物志》第20(2)卷334页
  214．川柳（秦岭植物志）
  Salix hylonoma Schneid. in Sarg. Pl. Wils. 3: 68. 1916; Hao in Fedde, Rep. Beih. 93: 107. t. 41: 82, 1936; 秦岭植物志, 1 (2): 44, 1974.——S. isochroma Schneid. 1. c. 122. 1916.——S. chuniana Fang in Journ. Wash. Acad. Sci. 38 (9): 314. 1948.——S. hylonoma Schneid. var. isochroma (Schneid.). Schneid. in Bot. Gaz. 64: 147, 1917; Hao, 1. c. 107. 1936.

《Flora of China》 Vol. 4 (1999)
Salix hylonoma  C. K. Schneider
川柳   chuan liu
Salix chuniana Fang; S. hylonoma var. isochroma (C. K. Schneider) C. K. Schneider; S. isochroma C. K. Schneider.
Trees to 6 m tall. Branchlets russet, glabrous, pilose when young. Buds conical-ovoid. Leaves petiolate; leaf blade elliptic, oblong-lanceolate, ovate-lanceolate, or ovate, 2.5-7 (-8.5) × 1.5-2.3 cm, abaxially greenish, glabrous or pilose, rarely tomentose, golden-downy when young, adaxially green, usually russet when young, base broadly cuneate to subcordate, margin indistinctly serrulate, rarely entire, apex acuminate; veins conspicuous. Flowering coetaneous or slightly precocious. Male catkin 3-4(-6) cm × ca. 6 mm, golden, shiny, subsessile; bracts elliptic or obovate, long golden, pubescent. Male flower: gland narrowly terete, ca. as long as bracts; stamens 2; filaments connate in part or throughout, base downy; anthers reddish purple, broadly ellipsoid. Female catkin 5-7 cm × ca. 7 mm, to 8(-12) cm in fruit; bracts as in male catkin. Female flower: gland as in male flower; ovary reddish, ovoid, pubescent, sesile or shortly stipitate; style conspicuous, 2-cleft; stigma 2-parted. Capsule ca. 4 mm, pilose, rarely subglabrous or glabrous; stipe short.
* Woods on mountain slopes; below 3000 m. NW Anhui, S Gansu, Guizhou, Hebei, Shaanxi, Shanxi, Sichuan, NW Yunnan.