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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。