Medicinal plants, also called medicinal herbs, have been discovered and used in traditional medicine practices since prehistoric times. Plants synthesise hundreds of chemical compounds for functions including defence against insects, fungi, diseases, and herbivorous mammals. Numerous phytochemicals with potential or established biological activity have been identified. However, since a single plant contains widely diverse phytochemicals, the effects of using a whole plant as medicine are uncertain. Further, the phytochemical content and pharmacological actions, if any, of many plants having medicinal potential remain unassessed by rigorous scientific research to define efficacy and safety.
Physalis is a genus of flowering plants in the nightshade family (Solanaceae), which grow in warm temperate and subtropical regions of the world. Most of the species, of which 75–90 may exist, are indigenous to the Americas. Cultivated species and weedy annuals have been introduced worldwide. A notable feature is the formation of a large, papery husk derived from the calyx, which partly or fully encloses the fruit. The fruit is small and yellow to orange, similar in size, shape, and structure to a small tomato.
Physalis peruviana, a plant species of the genus Physalis in the nightshade family Solanaceae, has its origin in Peru. The plant and its fruit are commonly called Cape gooseberry, goldenberry, and physalis in English, in addition to numerous indigenous and regional names. The history of Physalis cultivation in South America can be traced to the Inca. It has been cultivated in England since the late 18th century, and in South Africa in the Cape of Good Hope since at least the start of the 19th century. Widely introduced in the 20th century, P. peruviana is cultivated or grows wild across the world in temperate and tropical regions.
Plantago major, the broadleaf plantain, white man's foot, or greater plantain, is a species of flowering plant in the plantain family Plantaginaceae. The plant is native to most of Europe and northern and central Asia, but has widely naturalised elsewhere in the world.
Frangula purshiana is a species of plant in the family Rhamnaceae. It is native to western North America from southern British Columbia south to central California, and eastward to northwestern Montana.
James A. Duke was an American botanist. He was the author of numerous publications on botanical medicine, including the CRC Handbook of Medicinal Herbs. He was well known for his 1997 bestseller, The Green Pharmacy. He developed the Dr. Duke's Phytochemical and Ethnobotanical Databases at the USDA.
Alpinia galanga, a plant in the ginger family, bears a rhizome used largely as an herb in Unani medicine and as a spice in Arab cuisine and Southeast Asian cookery. It is one of four plants known as "galangal", and is differentiated from the others with the common names lengkuas, greater galangal, and blue ginger.
Hipólito Ruiz López, or Hipólito Ruiz, was a Spanish botanist known for researching the floras of Peru and Chile during an expedition under Carlos III from 1777 to 1788. During the reign of Carlos III, three major botanical expeditions were sent to the New World; Ruiz and José Antonio Pavón Jiménez were the botanists for the first of these expeditions, to Peru and Chile.
Cinchona officinalis is a South American tree in the family Rubiaceae. It is native to wet montane forests in Colombia, Ecuador, Peru and Bolivia, between 1600–2700 meters above sea level.
Prunella vulgaris is a herbaceous plant in the genus Prunella.
Sambucus peruviana is a species of tree in the family Adoxaceae. It is native to Central America and South America.
Cascabela thevetia is a poisonous plant native throughout Mexico and in Central America, and cultivated widely as an ornamental. It is a relative of Nerium oleander, giving it a common name yellow oleander, and is also called lucky nut in the West Indies.
Echinopsis pachanoi — known as San Pedro cactus — is a fast-growing columnar cactus native to the Andes Mountains at 2,000–3,000 m (6,600–9,800 ft) in altitude. It is found in Argentina, Bolivia, Chile, Ecuador and Peru, and it is cultivated in other parts of the world. Uses for it include traditional medicine and traditional veterinary medicine, and it is widely grown as an ornamental cactus. It has been used for healing and religious divination in the Andes Mountains region for over 3,000 years. It is sometimes confused with its close relative Echinopsis peruviana.
Lippia alba is a species of flowering plant in the verbena family, Verbenaceae, that is native to southern Texas in the United States, Mexico, the Caribbean, Central America, and South America. The species is also present in Australia and India, where it is probably a human introduction. Common names include bushy matgrass, bushy lippia, hierba negra, and pitiona. It is a multi-branched shrub, reaching a height of 1.5 m (4.9 ft). Leaves measure 1 to 3 cm in length and 0.9 to 2 cm in width and are opposite or in threes. Flowers with white, pink, or light blue-purple corollas form on spikes 2 cm (0.79 in) long.
Lippia graveolens, a species of flowering plant in the verbena family, Verbenaceae, is native to the southwestern United States, Mexico, and Central America as far south as Nicaragua. Common names include Mexican oregano, redbrush lippia, orégano Cimmaron, scented lippia, and scented matgrass. The specific epithet is derived from two Latin words: gravis, meaning "heavy", and oleo, meaning "oil". It is a shrub or small tree, reaching 1–2.7 m (3.3–8.9 ft) in height. Fragrant white or yellowish flowers can be found on the plant throughout the year, especially after rains.
The Botanical Expedition to the Viceroyalty of Peru was a Spanish expedition to the colonial territories of the Viceroyalty of Peru and Chile between 1777 and 1788.
Parahancornia is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1922. It is native to South America.
Gaultheria insipida, called chichaja in Spanish, is a flowering shrub of the plant genus Gaultheria. The species is native to the Andes; specimens have been found in Colombia, Ecuador, and Peru.
Dianethole is a naturally occurring organic compound that is found in anise and fennel. It is a dimeric polymer of anethole. It has estrogenic activity, and along with anethole and photoanethole, may be responsible for the estrogenic effects of anise and fennel. These compounds bear resemblance to the estrogens stilbene and diethylstilbestrol, which may explain their estrogenic activity. In fact, it is said that diethylstilbestrol and related drugs were originally modeled after dianethole and photoanethole.
Photoanethole is a naturally occurring organic compound that is found in anise and fennel. It has estrogenic activity, and along with anethole and dianethole, may be responsible for the estrogenic effects of anise and fennel. These compounds bear resemblance to the estrogens stilbene and diethylstilbestrol, which may explain their estrogenic activity. In fact, it is said that diethylstilbestrol and related drugs were originally modeled after photoanethole and dianethole.
