Rubiaceae is a family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas, or herbs that are recognizable by simple, opposite leaves with interpetiolar stipules and sympetalous actinomorphic flowers. The family contains about 13,500 species in about 620 genera, which makes it the fourth-largest angiosperm family. Rubiaceae has a cosmopolitan distribution; however, the largest species diversity is concentrated in the tropics and subtropics. Economically important genera include Coffea, the source of coffee, Cinchona, the source of the antimalarial alkaloid quinine, ornamental cultivars, and historically some dye plants.
Gentianales is an order of flowering plant, included within the asterid clade of eudicots. It comprises more than 20,000 species in about 1,200 genera in 5 families. More than 80% of the species in this order belong to the family Rubiaceae.
Cycads are seed plants that typically have a stout and woody (ligneous) trunk with a crown of large, hard, stiff, evergreen and (usually) pinnate leaves. The species are dioecious, that is, individual plants of a species are either male or female. Cycads vary in size from having trunks only a few centimeters to several meters tall. They typically grow very slowly and live very long. Because of their superficial resemblance, they are sometimes mistaken for palms or ferns, but they are not closely related to either group.
Castilleja, commonly known as paintbrush, Indian paintbrush, or prairie-fire, is a genus of about 200 species of annual and perennial herbaceous plants native to the west of the Americas from Alaska south to the Andes, northern Asia, and one species as far west as the Kola Peninsula in northwestern Russia. These plants are classified in the broomrape family Orobanchaceae. They are hemiparasitic on the roots of grasses and forbs. The generic name honors Spanish botanist Domingo Castillejo.
Galium is a large genus of annual and perennial herbaceous plants in the family Rubiaceae, occurring in the temperate zones of both the Northern and Southern Hemispheres. Some species are informally known as bedstraw.
Ixora is a genus of flowering plants in the family Rubiaceae. It is the only genus in the tribe Ixoreae. It consists of tropical evergreen trees and shrubs and holds around 544 species. Though native to the tropical and subtropical areas throughout the world, its centre of diversity is in Tropical Asia. Ixora also grows commonly in subtropical climates in the United States, such as Florida where it is commonly known as West Indian jasmine.
Guettarda is a plant genus in the family Rubiaceae. Most of these plants are known by the common name velvetseed.
Multidentia is a genus of flowering plants in the family Rubiaceae.
Vanguerieae is a tribe of flowering plants in the family Rubiaceae and contains about 655 species in 30 genera. It is one of the most species-rich groups within the family and it is distributed across the Paleotropics.
Atractocarpus benthamianus is a species of flowering plant in the family Rubiaceae growing in eastern Australia. It is an understorey species of subtropical and tropical rainforest on fertile soils. The natural range of distribution is from Forster, New South Wales to central Queensland. This plant features beautifully scented flowers.
Chione is a monotypic genus of flowering plants in the family Rubiaceae containing the single species Chione venosa. It is native to the neotropics, occurring in most of Mexico, and throughout Central America, the Caribbean, Colombia, Ecuador, and Peru. It is typically a tree growing 10 to 20 meters tall. In harsh habitats, it may be dwarfed and shrubby. It has no known economic use.
Duroia is a genus of flowering plants in the family Rubiaceae. The genus is found from Costa Rica to tropical South America.
Eucalyptus exserta, commonly known as Queensland peppermint, peppermint, bendo, yellow messmate or messmate, is a species of tree or a mallee and is endemic to eastern Australia. It has hard, fibrous bark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and hemispherical or cup-shaped fruit.
Puffia is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Puffia gerrardii, which is restricted to the littoral forests of southeastern Madagascar.
Hemiphora exserta is a flowering plant in the mint family Lamiaceae and is endemic to the south-west of Western Australia. It is a sprawling shrub with its branches densely covered with white, woolly hairs. Its leaves are rough and wrinkled and the flowers are deep pink or dark red, curved and tube-shaped with spreading petal lobes on the end.
Hemiphora lanata is a flowering plant in the mint family Lamiaceae and is endemic to the south-west of Western Australia. It is a sprawling shrub with its branches and leaves densely covered with white, woolly hairs and with deep pink or dark red, curved, tube-shaped flowers with spreading petal lobes on the end. It is similar to Hemiphora exserta except for its cottony leaf-covering and its longer stamens.
Dr. Charlotte M. Taylor is a botanist and professor specialising in taxonomy and conservation. She works with the large plant family Rubiaceae, particularly found in the American tropics and in the tribes Palicoureeae and Psychotrieae. This plant family is an economically important group, as it includes plant species used to make coffee and quinine. Taylor also conducts work related to the floristics of Rubiaceae and morphological radiations of the group. Taylor has collected plant samples from many countries across the globe, including Chile, Colombia, Costa Rica, Panama, and the United States of America, and has named many new species known to science from these regions. As of 2023, Taylor has authored 500 land plant species' names, the third-highest number of such names authored by any female scientist.
Discospermum philippinensis is an endemic species of genus Discospermum, which are flowering plants in the family Rubiaceae. The species was described in 2015, and was found on Mt. Banahaw, Tayabas, Quezon Province, Philippines at an elevation of 623 m. This species closely resemble that of D. whitfordii because of its persistent calyx, and prominent disk below the fruit apex. However, the species differs from D. whitfordii due to leaf blades with a much larger dimensions, the leaf apex of which are acute to attenuate, the fruits of which are faintly ribbed, with the thin mesocarp that are smaller, and fewer seeds per locule.
Colleteria is a genus of flowering plants in the family Rubiaceae, native to Cuba, Hispaniola, and Puerto Rico. Among other differences from the genus Chione, from which they were split, they have fruit with two pyrenes.
Scandia is a genus of flowering plants belonging to the family Apiaceae. It is also in tribe Aciphylleae, with plants, Gingidia Dawson and Lignocarpa Dawson, with all three genera being native to New Zealand. They are scrambling shrubs with white flowers.
