单词 | purple coneflower |
释义 | purple coneflowernoun Any of several North American perennial plants constituting the genus Echinacea (family Asteraceae (Compositae)), especially E. purpurea, which has flowers with a prominent dark central disc and purplish, downward-pointing rays around its edge. OriginMid 19th century; earliest use found in Asa Gray (1810–1888), botanist. |
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