叶脉曲张病毒属（Varicosavirus），是病毒的一属。代表种是莴苣大叶脉联合病毒(Lettuce big-vein associated virus)。

名称来源：“Vari”从拉丁语静脉曲张(varix)，异常的扩张(abnormal dilatation)或一条静脉或者动脉和指类型种类的主要症状(symptom征候,征兆)的扩大。

The genus Varicosavirus is a group of related plant viruses associated with the swelling in plant vein tissues. They are negative single stranded RNA viruses with no specific assigned family. Infection occurs through soil by the spores of the fungus Olpidium brassicae.