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毛柄柳 |
中文名:毛柄柳 学 名:Salix lasiopes 界:植物界 门:被子植物门Angiospermae 纲:双子叶植物纲Dicotyledoneae 亚 纲:原始花被亚纲 Archichlamydeae 目:杨柳目 Salicales 科:杨柳科Salicaceae 属:柳属 Salix 组:毛柳组 Sect. Lanatae 种:毛柄柳 |
毛柄柳(学名:Salix lasiopes)为杨柳科柳属的植物。分布在中国大陆的西藏等地,生长于海拔3,000米的地区,一般生长在山坡上,目前尚未由人工引种栽培。 [1]
毛柄柳形态特征
灌木,高2米。当年生小枝有密灰色长毛;二年生小枝特别在上部多少被暗灰色长毛。
叶长圆状披针形或长圆形,长4-6厘米,宽1.8-2.5厘米,先端急尖或短渐尖,基部圆形至楔形,全缘,上面绿色,下面苍白色或浅绿色,除中脉外,两面无毛,侧脉约11对;叶柄长4-8毫米,有灰长毛;托叶近披针形或卵状披针形,长达3.5毫米,有疏细腺齿,有毛。
果序长6-9厘米,粗约1.5厘米,花序梗长3-9毫米,生有2-3小叶,和轴均有毛;
蒴果无毛,果柄明显,花柱长,上部2裂,柱头2裂;苞片干后暗紫揭色,卵形或倒卵形,先端微凹,两面仅中下部有柔毛;腺体2,腹生和背生,均与果柄近等长。
雄株未见。 [2]
Salix lasiopes C. Wang et P. Y. Fu,植物分类学报, 12 (2): 198. 图版51: 4. 1974; 西藏植物名录, 46. 1980.
Salix bhutanensis Floderus var. lasiopes (C. Wang & P. Y. Fu) N. Chao.
Shrubs to 2 m tall. Juvenile branchlets densely long gray pubescent; 2-year-old branchlets ± long gray pubescent. Stipules sublanceolate or ovate-lanceolate, ca. 3.5 mm, pilose, margin dentate; petiole 4-8 mm, long gray pubescent; leaf blade oblong-lanceolate or oblong, 4-6 × 1.8-2.5 cm, abaxially pale or greenish except glabrous along midvein, adaxially green, base rounded to cuneate, margin entire, apex acute or shortly acuminate; lateral veins ca. 11 on each side of midvein. Male catkin unknown. Fruiting catkin 6-9 × ca. 1.5 cm; peduncle 3-9 mm, with 2 or 3 leaflets, pilose; rachis pilose; bracts dull purplish brown when dried, ovate or obovate, proximally downy on both surfaces, apex retuse. Female flower: adaxial and abaxial glands ca. as long as stipe; style long, 2-cleft; stigma 2-lobed. Capsule glabrous, stipitate.
- Mountain slopes; circa 3000 m. Xizang
毛柄柳生长习性
主要生长于海拔3000米的山坡上。