boltonia / boʊlˈtoʊ ni ə /

📖毕业后词汇波尔图尼亚博尔顿尼亚博尔顿群岛波尔图利亚

boltonia 的定义

n. 名词 noun
  1. any of several composite plants of the genus Boltonia, of the U.S., having blue, purple, or white asterlike flower heads.