沙柳Salix psammophila
中文名（Chinese Name）：沙柳
学名（Scientific Name）：Salix psammophila C. Wang et Ch. Y. Yang
英文名（English Common Name）：
别名（Chinese Common Name）：北沙柳
异名（Synonym）：
科属（Family & Genus）：杨柳科（Salicaceae）柳属
形态特征（Description）：灌木，高3-4米。当年枝初被短柔毛，后几无毛，上年生枝淡黄色，常在芽附近有一块短绒毛。叶线形，长4-8厘米，宽2-4毫米（萌条叶长至12厘米），先端渐尖，基部楔形，边缘疏锯齿，上面淡绿色，下面带灰白色，幼叶微有绒毛，成叶无毛；叶柄长约1毫米；托叶线形，常早落（萌枝上的托叶常较长）。花先叶或几与叶同时开放，花序长1-2厘米，具短花序梗和小叶片，轴有绒毛；苞片卵状长圆形，先端钝圆，外面褐色，稀较暗，无毛，基部有长柔毛；腺体1，腹生，细小；雄蕊2,花丝合生，基部有毛，花药4室，黄色；子房卵圆形，无柄，被绒毛，花柱明显，长约0.5毫米，柱头2裂，具开展的裂片。花期3-4月，果期5月。
分布（Distribution）：产陕西、内蒙古、宁夏、山西等省区。
用途（Use）：
引自中国植物志英文版：FOC Vol. 4 Page 273
Salix psammophila C. Wang & Chang Y. Yang in Chang Y. Yang, Bull. Bot. Lab. N.-E. Forest. Inst., Harbin. 9: 104. 1980.
北沙柳 bei sha liu| Salicaceae | Salix
Shrubs to 4 m tall. One-year-old branchlets yellowish, usually slightly tomentulose near buds. Juvenile branchlets at first pubescent, becoming subglabrous. Stipules linear, acuminate or acute, often longer on shoots; petiole ca. 1 cm; leaf blade linear, 4-8 cm × 2-4 mm, to 12 cm on shoots, abaxially grayish white, tomentulose when young, glabrescent, adaxially greenish, base cuneate, margin sparsely serrate, apex acuminate. Flowering precocious or nearly coetaneous. Catkins 1-2 cm; peduncle short, with leaflets; rachis tomentose; bracts ovate-oblong, abaxially brown, glabrous, villous at base, apex obtuse-rounded. Male flower: adaxial gland short; stamens 2, connate throughout; filaments pilose at base; anthers 4-loculed, yellow. Female flower: ovary ovoid, tomentose, sessile; style ca. 1/2 as long as ovary, ca. 0.5 mm; stigma 2-cleft. Fl. Mar-Apr, fr. May.
* Sands. Nei Mongol, Ningxia (Yanchi Xian), Shaanxi, Shanxi
Similar to Salix gordejevii but branchlets slightly tomentulose near buds; leaf blade not revolute at margin in autumn; stamens completely connate; capsule tomentose. Similar also to S. gracilior but leaf blade linear; style conspicuous, short.
Used for weaving wicker articles and stabilizing sand.
（责任编辑：徐晔春）
学名（Scientific Name）：Salix psammophila C. Wang et Ch. Y. Yang
英文名（English Common Name）：
别名（Chinese Common Name）：北沙柳
异名（Synonym）：
科属（Family & Genus）：杨柳科（Salicaceae）柳属
形态特征（Description）：灌木，高3-4米。当年枝初被短柔毛，后几无毛，上年生枝淡黄色，常在芽附近有一块短绒毛。叶线形，长4-8厘米，宽2-4毫米（萌条叶长至12厘米），先端渐尖，基部楔形，边缘疏锯齿，上面淡绿色，下面带灰白色，幼叶微有绒毛，成叶无毛；叶柄长约1毫米；托叶线形，常早落（萌枝上的托叶常较长）。花先叶或几与叶同时开放，花序长1-2厘米，具短花序梗和小叶片，轴有绒毛；苞片卵状长圆形，先端钝圆，外面褐色，稀较暗，无毛，基部有长柔毛；腺体1，腹生，细小；雄蕊2,花丝合生，基部有毛，花药4室，黄色；子房卵圆形，无柄，被绒毛，花柱明显，长约0.5毫米，柱头2裂，具开展的裂片。花期3-4月，果期5月。
分布（Distribution）：产陕西、内蒙古、宁夏、山西等省区。
用途（Use）：
引自中国植物志英文版：FOC Vol. 4 Page 273
Salix psammophila C. Wang & Chang Y. Yang in Chang Y. Yang, Bull. Bot. Lab. N.-E. Forest. Inst., Harbin. 9: 104. 1980.
北沙柳 bei sha liu| Salicaceae | Salix
Shrubs to 4 m tall. One-year-old branchlets yellowish, usually slightly tomentulose near buds. Juvenile branchlets at first pubescent, becoming subglabrous. Stipules linear, acuminate or acute, often longer on shoots; petiole ca. 1 cm; leaf blade linear, 4-8 cm × 2-4 mm, to 12 cm on shoots, abaxially grayish white, tomentulose when young, glabrescent, adaxially greenish, base cuneate, margin sparsely serrate, apex acuminate. Flowering precocious or nearly coetaneous. Catkins 1-2 cm; peduncle short, with leaflets; rachis tomentose; bracts ovate-oblong, abaxially brown, glabrous, villous at base, apex obtuse-rounded. Male flower: adaxial gland short; stamens 2, connate throughout; filaments pilose at base; anthers 4-loculed, yellow. Female flower: ovary ovoid, tomentose, sessile; style ca. 1/2 as long as ovary, ca. 0.5 mm; stigma 2-cleft. Fl. Mar-Apr, fr. May.
* Sands. Nei Mongol, Ningxia (Yanchi Xian), Shaanxi, Shanxi
Similar to Salix gordejevii but branchlets slightly tomentulose near buds; leaf blade not revolute at margin in autumn; stamens completely connate; capsule tomentose. Similar also to S. gracilior but leaf blade linear; style conspicuous, short.
Used for weaving wicker articles and stabilizing sand.
（责任编辑：徐晔春）
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