Monograph
Cannabis
Cannabis sativa
Cannabis is a single species, Cannabis sativa, that people have grown for fiber, seed, medicine, and intoxication for thousands of years. He...
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Browse published herb monographs covering traditional use, modern research, and safety.
Monograph
Cannabis sativa
Cannabis is a single species, Cannabis sativa, that people have grown for fiber, seed, medicine, and intoxication for thousands of years. He...
Monograph
Carum carvi
Caraway is the curved, ribbed little “seed” that gives rye bread, sauerkraut, and kümmel liqueur their warm, slightly bitter flavor. Botanic...
Monograph
Frangula purshiana
Cascara sagrada is the dried bark of a small tree from the Pacific Northwest, and one of the few North American plants to become a mainstrea...
Monograph
Capsicum annuum
Cayenne is the dried, pungent fruit of hot Capsicum peppers—most often Capsicum annuum, sometimes small-fruited C. frutescens—whose heat com...
Monograph
Centaurium erythraea
Centaury is one of Europe’s classic bitter herbs. Centaurium erythraea is a small annual or biennial plant of the gentian family (Gentianace...
Monograph
Matricaria chamomilla
Chamomile is a small, apple-scented daisy whose dried flower heads make one of the world’s most popular herbal teas. In most tea bags and he...
Monograph
Vitex agnus-castus
Chasteberry, the fruit of the chaste tree, is one of the few herbs with a European license for a specific women’s health complaint. In 2018...
Monograph
Cinnamomum verum
Cinnamon is a spice first and a medicine second, and the word on the label can mean several different trees. True or Ceylon cinnamon, Cinnam...
Monograph
Symphytum officinale
Comfrey (Symphytum officinale) is a moisture-loving borage-family perennial whose common name “knitbone” still advertises an old promise: th...
Monograph
Primula veris
Cowslip is the nodding yellow wildflower of old English hay meadows, and it leads a double life in European pharmacies. Primula veris and it...
Monograph
Vaccinium macrocarpon
Cranberry is a native North American bog fruit, the tart red berry of a low, trailing evergreen vine, and most of the crop ends up as juice,...
Monograph
Turnera diffusa
Damiana is Turnera diffusa, a small, many-branched, strongly aromatic shrub of dry, rocky scrub from Texas and Mexico through Central Americ...
Monograph
Taraxacum officinale
Dandelion’s scientific name is Taraxacum officinale. It is the familiar yellow-flowered weed of lawns, roadsides, and meadows: a perennial o...
Monograph
Harpagophytum procumbens
Devil’s claw is a sprawling desert plant of the Kalahari whose woody fruits bristle with hooked arms that snag the feet and fur of passing a...
Monograph
Echinacea purpurea
Echinacea, the purple coneflower of North American prairies, is one of the most popular herbs for colds, and one of the few whose cold use E...
Monograph
Sambucus nigra
Elderberry is the small, purple-black fruit of the elder tree, Sambucus nigra, a hedgerow shrub or small tree also known as black elder, Eur...
Monograph
Eleutherococcus senticosus
Eleuthero is the root of a prickly shrub from the forests of the Russian Far East, northern China, Korea, and Japan, sold for decades as “Si...
Monograph
Eucalyptus globulus
Eucalyptus is a medicinal tree best known for the sharp, cooling oil in its leaves, used mainly to ease coughs, colds, and a blocked nose. I...
Monograph
Oenothera biennis
Evening primrose oil, usually shortened to EPO, is one of the best-selling plant supplements of the last half century. The oil is pressed or...
Monograph
Foeniculum vulgare
Fennel is a kitchen plant and a medicine at the same time. It is a tall, feathery perennial in the carrot family, smelling strongly of anise...