在锡林郭勒一望无垠的沙地中,普遍生长着一种优良的固沙植物——小黄柳。小黄柳是落叶灌木,皮黄色,枝条细长,单叶互生,叶为披针形,长10～18厘米,四月下旬长出直立蓁荑花序,长2～3厘米,花单性,雌雄异株,五月下旬种子成熟,种子极小,种子上长有白毛状种缨,随风飘扬,在植被稀疏的潮湿沙地上萌生 In Xilin Gol an oasis in the sand, the general growth of an excellent sand-fixing plants - small yellow willow. Small yellow willow is deciduous shrubs, yellow skin, slender branches, single leaf alternate, the leaves lanceolate, 10 to 18 cm long, in late April the erect rosebud inflorescence, 2 to 3 cm long, flower unisexual, Dioecious, mature seeds in late May, seeds very small, white hairy seeds on the seeds, fluttering in the wind, sparse vegetation in the humid sand