1. An alkaloid that is the active component of curare. 
   筒箭毒碱作为箭毒活跃成分的生物碱
2. Any of various plants of the genus Senecio, having rayed, usually yellow flower heads. 
   千里光多种千里光属植物中的一种，有伞状，且通常为黄色的头状花序
3. weedy herb of the eastern United States to Texas having golden-yellow flowers; sometimes becomes invasive; sometimes placed in genus Senecio. 
   生长在美国东部到德克萨斯开有金黄色花的杂生草本植物；有时归为千里光属。
4. poisonous crystalline alkaloid occurring with ephedrine and isomorphic with it. 
   有毒的晶状生物碱，与麻黄碱共生、同形。
5. a bitter alkaloid extracted from chinchona bark; used in malaria therapy. 
   从金鸡纳树中提取的较苦的生物碱；用于疟疾治疗。

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• 1. 千里光属生物碱
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