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鹧鸪柳 |
中文名:鹧鸪柳 学 名:Salix zhegushanica N. Chao 界:植物界 门:被子植物门Angiospermae 纲:双子叶植物纲Monocotyledoneae 目:杨柳目 Salicales 科:杨柳目 Salicales 属:柳属Salix 种:鹧鸪柳 |
鹧鸪柳(zhè gū liǔ,学名 Salix zhegushanica N. Chao),乔木,高4.5米。小枝幼时即无毛。芽被短毛。产自四川西北部。 [1]
鹧鸪柳形态特征
灌木,高4.5米。小枝幼时即无毛。芽被短毛。
叶椭圆形,长椭圆形或长圆形,长达3.5厘米,宽达1.5厘米,先端急尖或圆形,基部楔形至圆形,全缘或多少具细腺齿上面暗绿色,特别是中脉被绒毛,后无毛,下面苍白色,无毛,被腊粉,侧脉纤细,脉间距2-3毫米;叶柄长5-7毫米,纤细,腹面有毛,背面无毛,有时具细腺点;托叶细小。
雄花序长达4厘米,粗约9毫米,轴被绒毛;雄蕊2,花丝离生,下部有曲长柔毛;苞片近长方形,长约2.5毫米,有背腺和腹腺;雌花序长达5.5厘米,粗8毫米,轴被灰色绒毛,花序梗短,有时长达1厘米,无叶或有叶;
子房椭圆状卵形,近无柄,无毛,花柱长近1毫米,不分裂,柱头2裂,裂片短,卵形;苞片长圆形,先端圆形或截形,长1-2毫米,仅边缘多少被毛,腺体1,腹生,宽卵形或长圆形。
蒴果椭圆状卵形,长3-4毫米,无毛,近无柄。花期6月,果期7月[2]。
Salix zhegushanica N. Chao,东北林学院植物研究室汇刊, 9: 27. 1980.
Shrubs to 4.5 m tall. Branchlets glabrous. Buds pubescent. Stipules short; petiole thin, 5-7 mm, slightly pilose, sometimes small glandular; leaf blade elliptic, long elliptic, or oblong, ca. 3.5 × 1.5 cm, abaxially glaucous, glabrous, adaxially dull green, tomentose along midvein, glabrescent, base cuneate to rounded, margin entire or ± small glandular dentate, apex acute or rounded; lateral veins thin abaxially. Male catkin ca. 4 cm × 9 mm; rachis tomentose; bracts subrectangular, ca. 2.5 mm. Male flower: glands adaxial and abaxial; stamens 2; filaments distinct, basally villous. Female catkin to 5.5 cm × 8 mm; peduncle to 1 cm, with leaflets or not; rachis gray tomentose; bracts oblong, 1-2 mm, ± ciliate, apex rounded or truncate. Female flower: adaxial gland broadly ovate or oblong; ovary ellipsoid-ovoid, glabrous, subsessile; style ca. 1 mm, entire; stigma 2-lobed. Capsule ovoid-ellipsoid, 3-4 mm, glabrous, subsessile. Fl. Jun, fr. Jul.
- Mountains; 3400-3700 m. NW Sichuan
鹧鸪柳生长环境
生长于海拔3400-3700米的地区。