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1.herb having corymbose white-rayed flowers with scaly bracts and silky indehiscent fruits.
一种草本植物（菊科），头状花序的边花白色，呈伞房花序，包片呈鳞片状，瘦果具绢状绒毛。收藏指正
2.perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine.
美国东南部的一种多年生杂草，具有白边的花序；原来被用作民间的医药。收藏指正
3.bushy aromatic European perennial herb having clusters of buttonlike white-rayed flower heads; valued traditionally for medicinal uses; sometimes placed in genus Chrysanthemum.
似灌木的欧洲芳香草本植物，有白色纽扣般花串；传统作医用；有时归为菊类。收藏指正
4.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。收藏指正
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