竹叶吉祥草属（学名：Spatholirion）是鸭跖草科下的一个属。该属共有2种，分布于泰国、印度**半岛。

Spatholirion is a genus of climbing or rosette monocotyledonous flowering plants in the dayflower family. It is distributed from China in the north, south to Thailand, Vietnam, and northern Peninsular Malaysia. It has four to eight seeds per carpel, unlike the closely related Streptolirion, which has only two, and white or purple petals. The inflorescence axis of Spatholirion longifolium and all of its branches are a bright purple, probably aiding in visual pollinator attraction. The genus was first described in 1896 by Henry Nicholas Ridley, the father of the commercial rubber industry, from plants sent to Kew Gardens from the Malay Peninsula near the border between Thailand and Malaysia. All species have a diploid chromosome number of 20.