Herbal tea

Depending on the source of the herbal ingredients, herbal teas, like any crop, may be contaminated with pesticides or heavy metals.[12][13] According to Naithani & Kakkar (2004), "all herbal preparations should be checked for toxic chemical residues to allay consumer fears of exposure to known neuro-toxicant pesticides and to aid in promoting global acceptance of these products".[12]

In addition to the issues mentioned above which are toxic to all people, several medicinal herbs are considered abortifacients, and if consumed by a pregnant individual could cause miscarriage. These include common ingredients like nutmeg, mace, papaya, bitter melon, verbena, saffron, slippery elm, and possibly pomegranate. It also includes more obscure herbs, like mugwort, rue, pennyroyal, wild carrot, blue cohosh, tansy, and savin.

While varieties of tisanes can be made from any edible plant material, below is a list of those commonly used for such:

• Anise tea, made from either the seeds or the leaves
• Asiatic penny-wort leaf, in South Asia and Southeast Asia
• Artichoke tea
• Bael Fruit tea, utilized for its antibacterial properties which can be effective in treating diarrhea, dysentery, ulcers, as well as respiratory infections.[14]
• Bee Balm
• Boldo, used in South America
• Burdock, the seeds, leaves, and roots have been used to increase blood circulation and treat skin disorders in addition to some cancers, diabetes, and AIDS[15]
• Cannabis tea, used in the preparation of Bhang
• Caraway, tea made from the seeds
• Catnip, tea used as a relaxant, sedative, and to calm
• Chamomile, commonly used for sore stomach, irritable bowel syndrome, and as a gentle sleep aid.[16] It is also used as a mild laxative and is anti-inflammatory[17] and bactericidal.[18]
• Che Dang, very bitter tea made from Ilex causue leaves
• Chinese knot-weed tea
• Chrysanthemum tea, made from dried flowers, is popular with Chinese Dim sum
• Cinnamon
• Coca tea, infusion made from coca leaves. Contains trace amounts of cocaine and similar alkaloids.[19] In some countries where coca is illegal, products marketed as "coca tea" are supposed to be decocainized, i.e., the pharmacologically active components have been removed from the leaf using the same chemicals used in manufacturing cocaine.
• Cacao bean tea
• Coffee-leaf tea, coffee fruit tea, and coffee blossom tea are herbal teas made using the leaves, fruits and flowers of the coffee plant
• Coffee bean tea, or simply coffee, a tisane made from the seeds of the coffee plant
• Cerasse, bitter Jamaican herb
• Citrus peel, including bergamot, lemon and orange peel
• Dandelion coffee
• Dill tea
• Dried lime tea, made from dried limes, is popular in western Asia
• Echinacea tea
• Elderberry
• European Mistletoe (Viscum album), (steep in cold water for 2–6 hours)
• Essiac tea, blended herbal tea
• Fennel
• Gentian
• Ginger root, can be made into herbal tea, known in the Philippines as salabat
• Ginseng, a popular tea in China and Korea, commonly used as a stimulant and as a caffeine substitute
• Goji, popular and very simple to prepare tea
• Guayusa, caffeinated tree of the holly genus, native to the Amazon Rainforest. [20]
• Hawthorn
• Hibiscus (often blended with rose hip), a popular tea alternative in the Middle East that is drunk hot or cold. Hibiscus tea is also consumed in Okinawa, and used in Chinese and Ayurvedic medicine (see Hibiscus health benefits). It is also used in Roselle (see below.)
• Honeybush, similar to rooibos and grows in a nearby area of South Africa, but tastes slightly sweeter. Has a low tannin content, no caffeine.
• Horehound
• Houttuynia
• Hydrangea tea, dried leaves of hydrangeas; considerable care must be taken because most species contain a toxin. The "safe" hydrangeas belong to the Hydrangea serrata Amacha ("sweet tea") Cultivar Group.[21]
• Jiaogulan, (also known as xiancao or poor man's ginseng)
• Kapor tea, dried leaves of fireweed
• Kava root, from the South Pacific, commonly used for its effects in promoting talkativeness and relaxation.[22] As well, kava extracts may be an effective alternative to tricyclic antidepressants and benzodiazepines for the treatment of anxiety disorders.[23]
• Kratom, dried leaves of the Kratom tree, drank for its medicinal and stimulant effects.[24][25]
• Kuzuyu, is a thick white Japanese tea made by adding kudzu flour to hot water
• Labrador tea, made from the shrub by the same name, found in the northern part of North America.
• Lemon Balm
• Lemon and ginger tea
• Lemon grass
• Luo han guo
• Licorice root
• Lime blossom, dried flowers of lime tree (Tilia in Latin).
• Mint, especially peppermint (also mixed with green tea to make mint tea)
• Moringa
• Mountain Tea, a very popular tea in the Balkans and other areas of the Mediterranean region. Made from a variety of the Sideritis syriaca plant which grows in warm climates above 3,000 feet. Records of its use date back 2,000 years.
• Neem leaf
• Nettle leaf
• New Jersey Tea
• Noni tea
• Oksusu cha, traditional roasted corn tea found in Korea.
• Olive leaf tea
• Osmanthus tea, dried flowers of the sweet olive tree are used alone or blended with tea leaves in China.
• Pandan Tea
• Patchouli tea
• Pennyroyal leaf, an abortifacient
• Pine tea, or tallstrunt, made from needles of pine trees
• Poppy tea, drank for its sedative and analgesic properties
• Qishr, Yemeni drink with coffee husks and ginger
• Red clover tea
• Red raspberry leaf
• Barley tea, East Asian drink with roasted barley
• Roasted wheat, used in Postum, a coffee substitute
• Rooibos (Red Bush), a reddish plant used to make an infusion and grown in South Africa. In the US it is sometimes called red tea. It has many of the antioxidant characteristics of green tea, but because it does not come from tea leaves, it has no caffeine.
• Rose hip (often blended with hibiscus)
• Roselle petals (species of Hibiscus; aka Bissap, Dah, etc.), consumed in the Sahel and elsewhere
• Rosemary
• Sagebrush, California Sagebrush
• Sage
• Sakurayu, Japanese herbal tea made with pickled cherry blossom petals
• Salvia
• Sassafras roots were steeped to make tea and were used in the flavoring of root beer until being banned by the FDA.
• Scorched rice, known as hyeonmi cha in Korea
• Skullcap
• Serendib (tea), tea from Sri Lanka
• Sobacha
• Spearmint
• Spicebush (Lindera benzoin) leaves used to make a tea by some native peoples of eastern North America
• Spruce tea, made from needles of spruce trees
• Staghorn sumac, fruit can be made into a lemonade
• Stevia, can be used to make herbal tea, or as a sweetener in other beverages
• St. John's Wort
• Thyme, contains thymol, an antiseptic[26] used in mouthwashes such as Listerine.[27]
• Tulsi, or Holy Basil, in English
• Turmeric tea
• Uncaria tomentosa, commonly known as Cat's Claw
• Valerian is used as a sedative.[28]
• Verbena (Vervain)
• Vetiver
• Wax gourd in East Asia and Southeast Asia.
• Wong Lo Kat, a recipe for herbal tea from Guangdong, China since the Qing Dynasty
• Woodruff
• Yarrow