Medicinal Herb InfoA reference archive of plants and their traditions
Not medical advice. This site documents how plants have been described and used historically. It is a botanical and folklore reference, not guidance for treating illness, and it carries no dosing instructions. Talk to a doctor or pharmacist before using any plant medicinally — herbs interact with medication and some are toxic.

HomeHerb index › Red Pimpernel

Red Pimpernel

Botanical reference entry

Parts Usually Used

The entire herb

Description of Plant(s) and Culture

Red pimpernel is a low annual plant; the square, procumbent or ascending stems reach a length of about 12 inches. The sessile, ovate leaves grow in opposite pairs or in threes, are blue-green on top, and have brown or black spots underneath. Starlike, axillary, red (or sometimes white or blue) flowers bloom from June to October. Their characteristic of closing when bad weather impends accounts for the plant’s “weatherglass” name.

Where Found

Grows particularly in cultivated and loamy soils all over North America, especially in coastal states, as well as in Europe and Asia.

Medicinal Properties

Cholagogue, diaphoretic, diuretic, expectorant, nervine, purgative, stimulant

Uses

Historical herbalists noted that the plant promoted perspiration and urine output. Traditional practitioners also employed it for liver complaints and dyspepsia. Additionally, a tincture of the plant was historically prepared for topical application to skin conditions and external sores.

Warning

Improper doses can cause disagreeable internal effects. The fresh leaves can cause dermatitis. Do not use without medical supervision.

Bibliography

The Herb Book , by John Lust, Bantam Books, 666 Fifth Avenue, New York, NY. copyright 1974. , 15 Columbus Circle, New York, NY 10023