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作 者 ：李晓江1，唐 宇2，夏明忠1，邵继荣3，刘建林1*

期 刊 ：西北植物学报 2012年 4期 页码：815~818

关键词：荞麦属；翅果密毛野荞麦；蓼科；新变种；四川；中国；

Keywords:Fagopyrum Mill., Fagopyrum densovillosum J.L.Liu var.pterocarpum J.L.Liu et X.J.Li, Polygonaceae, new variety, Sichuan, China,

摘 要 ：描述了蓼科一新变种——翅果密毛野荞麦[Fagopyrum densovillosum J.L.Liu var.pterocarpum J.L.Liu et X.J.Li]，并绘制了形态图。新变种瘦果较大，长2.5～3 mm，宽(2～)2.5～3 mm，果棱上具翅，翅宽0.5～1 mm，雄蕊长于雌蕊，从而区别于原变种密毛野荞麦(Fagopyrum densovillosum J.L.Liu)；另外，新变种全株密被短毛或长毛，茎枝较粗壮，红褐色，节较密集，叶片在表面具细皱纹和小泡状突起，雄蕊长于雌蕊，而又不同于齿翅野荞麦[Fagopyrum gracilipes (Hemsl.) Damm.et Diels var.odontopterum (Gross) Sam]。

Abstract:Fagopyrum densovillosum J.L.Liu var.pterocarpum J.L.Liu et X.J.Li,a new variety of the Polygonaceae from Sichuan,China,is described and illustrated.It is different to Fagopyrum densovillosum J.L.Liu by its major achenes,2.5～3 mm long and (2～) 2.5～3 mm in diameter,winged on the angular,wings 0.5～1 mm wide,stamens longer than pistils.In addition,the new variety is also different to Fagopyrum gracilipes (Hemsl.) Damm.et Diels var.odontopterum (Gross) Sam by its densely pubescent or villose plants,thicker and red-brown stems and branches,dense nodes,rugulose and small pustulate leaf blade on the surface,stamens longer than pistils.

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