壶萼刺茄（学名：Solanum rostratum）又名黄花刺茄，为茄科茄属下的一种一年生杂草。原产于新热带区和美国西南部。也是一种入侵物种。

Solanum rostratum is a species of nightshade (genus Solanum) that is native to the United States and northern and central Mexico. Common names include buffalobur nightshade, buffalo-bur, spiny nightshade, Colorado bur, Kansas thistle, Mexican thistle, and Texas thistle.