Trema is a genus of about 15 species of evergreen trees closely related to the hackberries (Celtis), occurring in subtropical and tropical regions of southern Asia, northern Australasia, Africa, South and Central America, and parts of North America. They are generally small trees, reaching 10–20 m (33–66 ft) tall.
Dracaena is a genus of about 120 species of trees and succulent shrubs. The formerly accepted genera Pleomele and Sansevieria are now included in Dracaena. In the APG IV classification system, it is placed in the family Asparagaceae, subfamily Nolinoideae. It has also formerly been separated into the family Dracaenaceae or placed in the Agavaceae.
Myrica is a genus of about 35–50 species of small trees and shrubs in the family Myricaceae, order Fagales. The genus has a wide distribution, including Africa, Asia, Europe, North America and South America, and missing only from Australia. Some botanists split the genus into two genera on the basis of the catkin and fruit structure, restricting Myrica to a few species, and treating the others in Morella.
Erythroxylum (Erythroxylon) is a genus of tropical flowering plants in the family Erythroxylaceae. Many of the approximately 200 species contain the substance cocaine; Erythroxylum coca, a native of South America, is 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.
Gynura is a genus of flowering plants in the daisy family Asteraceae endemic to Asia. The best known species is Gynura aurantiaca, often grown as a house plant. This plant is commonly known as purple passion because of the velvety purple leaves.
Capparis is a flowering plant genus, comprising around 250 species in the family Capparaceae which is included in the Brassicaceae in the unrevised APG II system. These plants are shrubs or lianas and are collectively known as caper shrubs or caperbushes. Capparis species occur over a wide range of habitat in the subtropical and tropical zones.
Xylopia is a genus of flowering plants in the family Annonaceae. They are mostly trees and some shrubs. There are about 160 species distributed in Asia, Africa, and the Americas.
Zygophyllum is the type genus of the flowering plant family Zygophyllaceae. The generic name is derived from the Greek words ζυγόν (zygon), meaning "double", and φυλλον (phyllon), meaning "leaf". It refers to the leaves, each of which have two leaflets.
Dichapetalum is a genus in the plant family Dichapetalaceae. The plants are tropical lianas native mainly to tropical regions of Africa, Asia, Malesia, the West Indies, Australia and Latin America. Some species are known to be poisonous due to the presence of toxic fluorinated compounds such as fluorocarboxylic acid and dichapetalins, a unique class of cytotoxic compounds that are only found within this genus.
Iodes is a genus of flowering plants belonging to the family Icacinaceae.
Pachylobus is a genus of flowering plants belonging to the family Burseraceae.
Zanthoxyloideae is a subfamily of the family Rutaceae.
