1. A spineless, dome - shaped cactusnative to Mexico and the southwest United States, having buttonlike tubercles that are chewed fresh or dry as a narcotic drug by certain Native American peoples.
佩奥特掌一种无刺的圆形仙人掌，原长于墨西哥和美国西南部，有钮扣形小块茎，新鲜或者晒干的佩奥特掌被某些土著美洲人当作麻醉药咀嚼
2. Common perennial aromatic herb native to Eurasia having buttonlike yellow flower heads and bitter-tasting pinnate leaves sometimes used medicinally.
原产欧亚的常见多年生芳香草本植物，纽扣状黄色花冠和苦味羽叶，可以入药。
3. Tansy-scented Eurasian perennial herb with buttonlike yellow flowers; used as potherb or salad green and sometimes for potpourri or tea or flavoring; sometimes placed in genus chrysanthemum.
艾菊气味的欧亚终年草本植物，有像纽扣一样的黄花；作青菜食用或用作白花香或茶或调味；有时归为菊类。
4. Furnished or closed with buttons or something buttonlike.
有钮扣或者像钮扣一样的东西装饰或者扣紧。