黄芩是唇形科黄芩属的一种植物。黄芩的根是一种草药，味苦、性寒，能清热燥湿、泻火解毒、止血、安胎。

多年生草本，圆柱形根肥大；方形茎，基部分枝；披针形的叶子对生。花期7－8月，花序顶生；花冠紫红色或蓝色；花萼二唇型，结果时闭合。

Scutellaria baicalensis (or Baikal skullcap, as opposed to Scutellaria lateriflora, a skullcap native to North America) is a species of flowering plant in the Lamiaceae family.