Dwarf tufted nearly stemless herb having a rosette of woolly leaves and large white-rayed flower heads and bristly achenes,central Canada and United States west to Arizona.

• 矮生、簇状、无柄草本植物，叶子呈线形或线状倒披针形，呈莲座状，开头状白色花，结有刚毛的瘦果，分布在加拿大中部和美国的亚利桑纳州西部。