Hoary Willowherb

Scientific names: Epilobium parviflorum

Other common names: Small Flowered Willow Herb, Willow Herb


Men, Women, Urinary Tract Support


Willow Herb is a herbaceous, perennial plant, reaching about 1 meter in height. Leaves are alternate and lanceolate on very short stems, forming a rosette close to the ground. Flowers are small (5-8 millimeters in diameter), solitary in the leaf axils, four-petaled and purplish or pale-pink in color. Fruit is a slender red capsule. Seeds are black and tiny, encased in a fluffy fiber, which can easily get carried by wind.   


Willow Herb had been traditionally used in treatments of numerous conditions: prostate enlargement, inflammation of the prostate (prostatitis), gastrointestinal disorders, kidney and bladder disorders, rectal bleeding, menstrual disorders, cystitis, urinary infections, diarrhea, mouth lesions and irritable bowel syndrome. Now, after thorough researches, Willow Herb has been recognized as a powerful herb against bladder and kidney ailments, various urinary tract disturbances and especially helpful in cases of prostate disorders. Tea made from the Willow herb can be a very beneficial treatment for benign prostatic hyperplasia. It has also been useful in controlling urinary incontinence in both men and women. Made into an ointment, it can soothe skin problems in children.

View Important Precautions

Useful Components of Hoary Willowherb

Flavorglycosides (especially derivatives of kaempferol, quercetin, and myricetin), b-sitosterol, various esters of sitosterol and sitosterol glucoside, gallic acid derivatives.

Parts Used

Whole plant

Important Precautions

Not for use during pregnancy or lactation. If you have a medical condition or take pharmaceutical drugs please consult your doctor prior to use.


This information in our Herbal Reference Guide is intended only as a general reference for further exploration, and is not a replacement for professional health advice. This content does not provide dosage information, format recommendations, toxicity levels, or possible interactions with prescription drugs. Accordingly, this information should be used only under the direct supervision of a qualified health practitioner such as a naturopathic physician.