Ann & Steve Toon / Devil's claw (Harpagophytum procumbens) fruit, Tswalu Kalahari private game reserve, Northern Cape, South Africa, January 2012

Roland Seitre / Chinese animal medicine market, including pangolin, snake skins, ungulate horns, and other unidentified dead animals. Cengdu, Sichuan, China, 1983.

Simon Colmer / (Vernonia amygdalina) commonly called bitter leaf because of its bitter taste. In the wild, chimpanzees have been observed ingesting leaves to counter parasitic infections. Medicinal plant: used for w...

Simon Colmer / Leaves and flowers of (Brillantaisia kirungae) a medicinal plant used in Uganda to cure urethritis

Simon Colmer / (Cyphostemma nieriense) Medicinal plant: used in Uganda to cure elephantiasis

Simon Colmer / Wild finger millet (Eleusine indica) also known as Indian goosegrass, Wiregrass, Crowfootgrass, A Medicinal plant used in Uganda to cure stomach ache and chicken pox

Simon Colmer / Leaves of (Tetradenia riparia) a medicinal plant popular in East Africa. said to cure stomach ache, skin diseases and malaria. Anti-bacterial and anti-fungal.

Simon Colmer / Tree marigold (Tithonia rotundifolia) also known as Mexican tournesol, Mexican sunflower or Nitobe chrysanthemum. Medicinal plant: used to improve liver function, and said to cure malaria

Simon Colmer / Indigo (Indigofera ambelacensis) Medicinal plant: used in Uganda to cure worms

Simon Colmer / Flowers and leaves of (Spilanthes mauritiana) a medicinal plant with a high anti-fungal potency

Simon Colmer / Common St. Pauls wort (Sigesbeckia orientalis) Medicinal plant: used in Uganda to cure skin and fungal infections and syphilis

Simon Colmer / Madagascar periwinkle (Catharanthus or Vinca roseus) Medicinal plant: used to cure hypertension, kidney failure, malaria and diabetes. Used in the treatment of leukemia.

Simon Colmer / African Oil palm leaves (Elaeis guineensis)

Simon Colmer / African Rosemallow also known as Maple Sugar, Red Hibiscus, Cranberry Shield (Hibiscus acetosella) Medicinal plant: used in Uganda as a blood tonic, leaves are edible and good source of vitamin C.

Simon Colmer / Creeping woodsorrel (Oxalis corniculata) Medicinal plant: used in Uganda to cure toothache, eliminate scars and as a diuretic. Entire plant is rich in vitamin C

Simon Colmer / Flowers and leaves of (Bothriocline tomentosa) medicinal plant used to cure diarrhoea and stop vomiting

Simon Colmer / Flower and leaves of (Bothriocline tomentosa) medicinal plant used to cure diarrhoea and stop vomiting

Simon Colmer / Candle Bush seed pods (Senna alata) also known as a Candelabra Bush, Empress Candle Plant, Ringworm Tree. Medicinal plant: effective fungicidal against ringworm and other fungal infections of the ski...

Simon Colmer / Vangueria leaves (Vangueria apiculata) a medicinal plant used to cure intestinal worms and stomach ache

Simon Colmer / Velvet combretum (Combretum molle) leaves, a medicinal pla: used for treating leprosy, stomach ailmets and as a cough expectorant

Simon Colmer / Trunk of the Neem tree (Azadirachta indica) member of the mahogany family, Meliaceae. Used in India for medicinal purposes: anti-fungal, anti-bacterial, ant-viral, contraceptive, sedative

Simon Colmer / Lemon grass (Cymbopogon afronardus)

Simon Colmer / Steudner's Dragon tree (Dracaena steudneri) Medicinal plant used as an anti-bacterial, anti-viral and combats high blood pressure

GEORGETTE DOUWMA / Thorn apple, Jimson weed (Datura stramonium) seed pods used in herbal medicine. UK

GEORGETTE DOUWMA / Thorn apple / Jimson weed (Datura stramonium)seed pods used in herbal medicine, UK

Adrian Davies / Turtle shells for sale in Chinese Herbal Medicine market, Hong Kong, China

Adrian Davies / Madagascar periwinkle (Catharanthus roseus) which is cultivated for herbal medicine

Adrian Davies / Dried snake skins for sale in Herbal Medicine Market, Hong Kong, China

Adrian Davies / Dried Lizards in Chinese herbal medicine shop, Hong Kong, China

Adrian Davies / Shark fin for sale in Chinese herbal medicine market, Hong Kong, China

Adrian Davies / Dried Lichen for sale in Chinese herbal medicine shop, Hong Kong, China

Adrian Davies / Dried Lizards in Chinese herbal medicine shop, Hong Kong, China

Adrian Davies / Various fungi for sale in Chinese herbal medicine market, Hong Kong, China

Adrian Davies / Ginseng (Panax sp.) for sale in Chinese herbal medicine shop, Hong Kong, China

Adrian Davies / Bracket Fungi (Ganoderma) for sale in Chinese herbal medicine shop, Hong Kong, China

Adrian Davies / Deer horns for sale in Chinese herbal medicine shop, Hong Kong, China

Adrian Davies / Deer horns for sale in Chinese herbal medicine shop, Hong Kong, China

Adrian Davies / Bracket fungi (Ganoderma lucidum) known as Lingzhi / Reshi, on sale in Chinese herbal medicine market, Hong Kong, China

Adrian Davies / Bracket Fungi (Ganoderma sp) for sale in Chinese Herbal Medicine Market, Hong Kong, China

Adrian Davies / Red Birds Nest for sale in Chinese Herbal Medicine Market, Hong Kong, China

Adrian Davies / Dried squid for sale in Chinese herbal medicine market, Hong Kong, China

RHONDA KLEVANSKY / Animal parts being sold by Zulu healers (sangoma) Durban herbal medicine market, Kwazulu Natal, South Africa, 1997

Patricio Robles Gil / Comca'ac Seri Indian selling medicinal plants, Sonora, Mexico

RHONDA KLEVANSKY / Zulu healer, sangoma, at Durban herbal medicine market, Kwazulu-Natal, South Africa

Niall Benvie / Sap from Greater celandine {Chelidonium majus} is used to treat warts. Estonia