Alternanthera is a genus of flowering plants in the family Amaranthaceae. It is a widespread genus with most species occurring in the tropical Americas, and others in Asia, Africa, and Australia. Plants of the genus may be known generally as joyweeds, or Joseph's coat. Several species are notorious noxious weeds.
The Polygalaceae or the milkwort family are made up of flowering plants in the order Fabales. They have a near-cosmopolitan range, with about 27 genera and ca. 900 known species of herbs, shrubs and trees. Over half of the species are in one genus, Polygala, the milkworts.
The Heliantheae are the third-largest tribe in the sunflower family (Asteraceae). With some 190 genera and nearly 2500 recognized species, only the tribes Senecioneae and Astereae are larger. The name is derived from the genus Helianthus, which is Greek for sun flower. Most genera and species are found in North America and South America. A few genera are pantropical.
Polygala is a large genus of flowering plants belonging to the family Polygalaceae. They are commonly known as milkworts or snakeroots. The genus is distributed widely throughout much of the world in temperate zones and the tropics. The genus name Polygala comes from the ancient Greek "much milk", as the plant was thought to increase milk yields in cattle.
Erythroxylum is a genus of tropical flowering plants in the family Erythroxylaceae. Many of the approximately 200 species contain the tropane alkaloid cocaine, and two of the species within this genus, Erythroxylum coca and Erythroxylum novogranatense, both native to South America, are the main commercial source of cocaine and of the mild stimulant coca tea. Another species, Erythroxylum vaccinifolium is used as an aphrodisiac in Brazilian drinks and herbal medicine.
Gomphrena is a genus of plants in the family Amaranthaceae. They are known as the globe amaranths.
Viguiera is a genus of flowering plants in the family Asteraceae. It contains around 19–40 species, which are commonly known as goldeneyes and are native to the New World. These are herbs to bushy shrubs that bear yellow or orange daisy-like flowers.
Galactia is a genus of plants in the legume family (Fabaceae). It belongs to the subfamily Faboideae and tribe Diocleae They do not have an unambiguous common name, being commonly called milk peas, beach peas or wild peas. They are perennial herbs or subshrubs with prostrate, climbing, or erect forms.
Jacquemontia is a genus of plants in the morning glory family Convolvulaceae. Species in this genus are commonly known as clustervine.
Hebecarpa is a genus of flowering plants belonging to the family Polygalaceae. Species are found from the southern United States through Mexico and Central America to western South America.
Asemeia is a genus of flowering plants belonging to the family Polygalaceae. It includes 36 species native to the tropical and subtropical Americas, ranging from the southeastern United States through Mexico, Central America, the Caribbean, and tropical South America to northern Argentina.
Caamembeca is a genus of flowering plants belonging to the family Polygalaceae.
Bredemeyera is a genus of flowering plants belonging to the family Polygalaceae.
