North american perennial with hairy basal pinnate leaves and purple flowers and plume - tipped fruits 北美洲的一种多年生植物，具有多毛的羽状基叶，紫色的花朵，果实顶端有宿存的羽毛状花柱。
2.
European perennial naturalized throughout united states having hollow stems with a few long narrow tapered leaves and each bearing a solitary pale yellow flower 欧洲的一种多年生植物，已被移入美国，花茎中空，叶子狭长且尖，有淡黄色单生的花。
