蒲公英别名婆婆丁、黄花地丁。为菊科多年生草本植物。全株无毛，含乳汁。根块状，肉质，圆柱形。基生叶近于无柄，倒卵状椭圆形，边缘波状，具刺状细齿。头状花序排成疏生的总状花序；花黄色，全部为舌状花，舌片先端5裂；总苞圆柱形，苞片数列，最外的苞片极小，三角形，大小不等，内面1列的苞片线形，近相等；花托平坦，无毛。瘦果细小，圆柱形，有明显的纵棱4～5条，冠毛多数。花期早春及晚秋。
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