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形态特征成株叶基生，狭线形，先端尖，脉纹成小方格形。花葶多，长短不一。花序头状，近球形。花单性，雄花花萼合生成倒卵形苞状，雌花花萼合生成佛焰苞状。
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【摘 要】
：
形态特征成株叶基生，狭线形，先端尖，脉纹成小方格形。花葶多，长短不一。花序头状，近球形。花单性，雄花花萼合生成倒卵形苞状，雌花花萼合生成佛焰苞状。
【出 处】
：
杂草科学
【发表日期】
：
2009年2期
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