爵床（学名：Rostellularia procumbens）是爵床科爵床属的植物。

一年生草本，基部常呈匍匐状；卵形或广披针形的叶子对生；穗状花序顶生或腋生，夏秋开粉红色花。

Justicia procumbens, commonly known as Water Willow, (Marathi: करंबल Karambal, पित्तपापडा Pitpapada, कलमाशी Kalmashi)(Tamil:கோடகசாலை--kOdakasAlai), is a small plant endemic to India.

The juice of leaves is squeezed in the eyes in case of ophthalmia.