The Medicinal Herb Info site was created to help educate visitors about the often forgotten wisdom of the old ways of treating illnesses. Many of today's drugs and medicines were originally derived from natural ingredients, combinations of plants and other items found in nature.

We are not suggesting that you ignore the help of trained medical professionals, simply that you have additional options available for treating illnesses. Often the most effective treatment involves a responsible blend of both modern and traditional treatments.

We wish you peace and health!


Scientific Names


  • Centaurea Nigra L.
  • Compositae
  • Composite family

Parts Usually Used

Root, flowers
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Description of Plant(s) and Culture

Knapweed is a perennial plant; it rises from the root, which is white, hard and woody with fibers annexed to it; the leaves are hairy, dented around the edges. Amid the leaves arises a long round stalk, 4-5 feet tall, divided into many branches, at the tops are great scaly green heads from the middle of which grow a number of dark purplish red threads; after they are withered and past, the black seeds appear. Lying in a great deal of down, something like Thistle seed, only smaller.

Knapweed is unprickly and has narrow, grayish leaves and purple, slightly scented flowers. Blooms in June and July and the seed is ripe shortly after.

The larger knapweed (C. scabiosa) has the same virtues. It is distinguished by its brighter flowers and bigger size.
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Where Found

Found in fields, meadows, borders, hedges, and in waste grounds everywhere.
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Medicinal Properties

Stimulant, styptic
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Legends, Myths and Stories

Young girls once wore knapweed underneath their bodice, believing it would flower should they chance to meet their future spouse.
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Of immense value in the treatment of glandular disorders. For immediate local relief, prepare a hot poultice. Good remedy for bruises, nose bleeds, bleeding gums, wounds, running sores, sore throat, swelling of the uvula and jaws. It also relieves catarrh, especially mixed with speedwell, and revives appetite after long convalescence. Some people eat the fresh flowers.
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Buy It! Culpeper’s Complete Herbal & English Physician: Updated With 117 Modern Herbs, by Nicholas Culpeper, Meyerbooks, publisher, PO Box 427, Glenwood, Illinois 60425, 1990, (reprint of 1814)

Buy It!The Magic of Herbs, by David Conway, published by Jonathan Cape, Thirty Bedford Square, London, England. (Out of print)

Buy It! Webster’s New World Dictionary, Third College Edition, Victoria Neufeldt, Editor in Chief, New World Dictionaries: A Division of Simon & Schuster, Inc., 15 Columbus Circle, New York, NY 10023

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