Utricles convex on both sides; rostra nearly equal to length of kernel; seed free from pericarp; leaves and bracts acicular to spinulose at apex.

胞凸的；差不多等于珠心的长度；种子离生的皮；对具微刺的在先端针状的叶和苞。

Styles short;stigmas capitate.Utricles irregularly circumscissile (bursting).

短头头状不规则的胞周裂的(爆发)。