草胡椒（学名：Peperomia pellucida）为胡椒科草胡椒属下的一个种。

Peperomia pellucida(a.k.a. pepper elder, shining bush plant, man to man) is an annual, shallow-rooted herb, usually growing to a height of about 15 to 45 cm. it is characterized by succulent stems, shiny, heart-shaped, fleshy leaves and tiny, dot-like seeds attached to several fruiting spikes. It has a mustard-like odor when crushed. The family Piperaceae comprises about a dozen genera and around 3000 species. The genus Peperomia represents nearly half of the Piperaceae with the genus Piper making the bulk of the rest.