Achenes 8 - ribbed, white pilose; pappus scabrous, 10-12 mm long, connate at base.

瘦果纺锤形，具8条纵棱，被白色长柔毛；冠毛粗糙，长10 - 12毫米，基部联合。

Some examples are given by inscribed and circumscribed circles of polygons, lines intersecting and tangent to conic sections, the Pappus and Menelaus configurations of points and lines.

一些例子所给予者和限制各界的多边形，线相交和相切的圆锥部分，帕普斯和墨涅拉俄斯配置的点和线。