Discover the Power of Plants

The Herbal Library

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Browse every herb in the database by name, category, or the body system it's traditionally associated with.

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21 herbs

No. 001Medicinal
Botanical illustration of American Ginseng

American Ginseng

Panax quinquefolius

North American ginseng, a root studied for preventing colds. Taken for 8 to 16 weeks, it shortened colds in healthy adults in a small number of trials.

No. 002Medicinal
Botanical illustration of Amla

Amla

Phyllanthus emblica

Indian gooseberry, a fruit rich in vitamin C and antioxidants, used in Ayurveda and as one of the three fruits in Triphala. Trials suggest it may lower cholesterol, blood sugar and a marker of inflammation.

No. 003Medicinal
Botanical illustration of Andrographis

Andrographis

Andrographis paniculata

A bitter herb used across Asia for infections and fevers, and traditionally for skin inflammation and wounds. It has mainly been studied for colds and flu.

No. 004Medicinal
Botanical illustration of Astragalus

Astragalus

Astragalus membranaceus

A root (huang qi) used for centuries in traditional Chinese medicine and promoted to strengthen the immune system. There isn't enough reliable evidence to know whether it helps any condition.

No. 005Medicinal
Botanical illustration of Cedar

Cedar

Thuja occidentalis

Northern white cedar, or arborvitae, a North American evergreen. Indigenous people in Canada showed it to 16th-century explorers as a remedy for scurvy. Its fresh leaves contain thujone and can be poisonous.

No. 006Medicinal
Botanical illustration of Chaga

Chaga

Inonotus obliquus

A dark, crusty fungus that grows on birch trees, long used as a folk remedy in Siberia and Russia for immunity. It is very high in oxalate, and long-term use has caused kidney damage.

No. 007Medicinal
Botanical illustration of Chaney Root

Chaney Root

Smilax balbisiana

A Jamaican climbing plant related to sarsaparilla. Its root is boiled into the popular "root tonic" drunk for stamina, and into teas for colds and flu. It hasn't been studied in people.

No. 008Medicinal
Botanical illustration of Cloves

Cloves

Syzygium aromaticum

A kitchen spice from the clove tree, whose oil is recognized in Europe for toothache and minor mouth and throat inflammation. In the lab, clove oil kills bacteria and fungi.

No. 009Medicinal
Botanical illustration of Elderberry

Elderberry

Sambucus nigra

The European elder, whose berries are used in folk medicine for colds and flu and whose flowers are recognized in Europe for early cold symptoms. Raw berries, leaves and stems are poisonous.

No. 010Medicinal
Botanical illustration of Giloy (Guduchi)

Giloy (Guduchi)

Tinospora cordifolia

An Ayurvedic climbing vine promoted in India as an immunity booster, including during COVID-19. Cases of liver injury have been reported, though some may involve a look-alike plant.

No. 011Medicinal
Botanical illustration of Hyssop

Hyssop

Hyssopus officinalis

A blue-flowered herb of the mint family, used for colds, coughs and poor appetite and as a flavoring. Its essential oil can cause seizures at high doses.

No. 012Medicinal
Botanical illustration of Jack in the Bush

Jack in the Bush

Chromolaena odorata

One of Jamaica's most popular bush teas for colds and flu, also used in Africa and Asia for fever, wounds and diabetes. Research so far is in the lab and in animals.

No. 013Medicinal
Botanical illustration of Katuki

Katuki

Picrorhiza kurroa

Kutki, a bitter root used in Ayurveda for thousands of years for fever, jaundice, the liver and breathing problems. It is now endangered in the wild.

No. 014Medicinal
Botanical illustration of Leaf of Life

Leaf of Life

Bryophyllum pinnatum

One of Jamaica's most popular bush medicines, used for colds and flu. In Switzerland, tablets made from its leaf juice have been studied for overactive bladder and sleep.

No. 015Medicinal
Botanical illustration of Marigold

Marigold

Tagetes erecta

The orange-flowered Mexican marigold, or cempasúchil, used in folk medicine from Mexico to India for fevers, colds, stomach upsets and skin sores. It's a different plant from calendula (pot marigold).

No. 016Medicinal
Botanical illustration of Pepper Elder

Pepper Elder

Piper amalago

A plant in the pepper family whose leaves are made into a Jamaican bush tea for colds and flu. Research so far is mostly in rats.

No. 017Medicinal
Botanical illustration of Pine Needles

Pine Needles

Pinus spp.

Needles of pine trees, brewed into a tea popular in Japan, Korea, China and Russia, and used in folk medicine for coughs, colds and flu. Some pines contain a substance that causes miscarriage in cattle.

No. 018Medicinal
Botanical illustration of Quercetin

Quercetin

Plant flavonoid (found in apples, onions and other foods)

A natural plant compound found in apples, onions, grapes, citrus and parsley, and sold as a supplement. In a trial of 1,002 people it didn't prevent colds overall.

No. 019Medicinal
Botanical illustration of Sarsaparilla

Sarsaparilla

Smilax ornata

A plant whose root is boiled into Jamaican roots tonics and used for colds and flu. Research on sarsaparilla plants is mostly preliminary lab and animal work.

No. 020Medicinal
Botanical illustration of Search Mi Heart

Search Mi Heart

Rhytidophyllum tomentosum

A Jamaican plant whose dried leaves are made into a bush tea, traditionally used for colds and flu, the heart, breathing problems and digestion. It hasn't been studied in research.

No. 021Medicinal
Botanical illustration of Turkey Tail

Turkey Tail

Trametes versicolor

A mushroom used in traditional Chinese medicine as a tonic. Extracts from it are used alongside cancer treatment in Japan and China.