Any of various thistles of the genus Centaurea, having variously colored flowers grouped in a head with a spiny involucre.
黑矢车菊一种属于矢车菊属的蓟属植物,其花有多种颜色,聚集在有刺状花被的头状花序里。
type genus of the family Notoryctidae: comprising solely the marsupial mole.
袋鼹科的模式属;仅由袋鼹构成。
The difficulty in distinguishing variable species is largely due to the varieties mocking, as it were, other species of the same genus.
变异的物种所以难于区别,主要在于变种和同属中其他物种相象的缘故。
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