Herbs annual or biennial.Root stout, tuberlike, and napiform or fusiform, or branched and not tuberlike.

或二草本根粗壮，管状，和芜菁状孔或纺锤形，或分枝而不管状。

The shapes of neuronal cell bodies are spherical, ovoid , pyramial, fusiform, stellate or crescentic.

神经元细胞体形状有圆形，卵圆形，锥形，梭形，星形或半月形。