1·Cytological investigation showed that this awned plant was a variation with extra chromosomes.
细胞学调查结果显示，该有芒株为添加额外染色体的变异株。
2·Leaves alternate, sessile, terete, fleshy, base expanded, apex obtuse or aristate awned; leaf axil fascicular pilose.
叶互生，无柄，圆柱状，肉质，基部扩大的，先端钝或具芒；叶腋束状具柔毛。