Botanical name: 

The root of Apium petroselinum.

Therapeutic Action.—Parsley root is a mild, unirritating diuretic, especially adapted to irritated and inflamed states of the urinary apparatus, as in gonorrhoea, cystitis, nephritis, urethritis, and in the painful micturition caused by displacement of the uterus. It augments the flow of urine, and by increasing its quantity lessens its acridity, thus affording much relief in the diseases named. It is also employed advantageously in hydropic affections, but as an independent article in these cases it is not to be relied upon.

The American Eclectic Materia Medica and Therapeutics, 1898, was written by John M. Scudder, M.D.