The Rubiaceae are 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.
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.
Atop of Mount Kenya Senecio keniophytum is one of the endemic groundsel (Senecio) found at high altitudes in Kenya, such as the Afro-alpine zone of Mount Kenya, but not one of the giant Dendrosenecio that also live there.
Senecio brasiliensis, known by the common name flor-das-almas, (flower-of-souls), is a perennial species of the genus Senecio and family Asteraceae. It is native to fields and meadows of central South America.
Globulostylis is a genus of flowering plants in the family Rubiaceae. It comprises 8 species growing in Central Africa.
Bradea is a genus of flowering plants in the family Rubiaceae. It was first described by Paul Carpenter Standley in 1932 and is named after the German botanist Alexander Curt Brade. All 6 species are endemic to Brazil, hence the name of the type species.
Prionosciadium thapsoides is a plant species native to the States of Veracruz and México, in the República de México, as well as Guatemala.
Quoya cuneata is a flowering plant in the mint family Lamiaceae and is endemic to the south-west of Western Australia. It is a spreading shrub with its branches and leaves covered with a layer of woolly, pale white or brownish hairs. The flowers are blue at first but become white with purple spots inside the petal tube.
Hemiphora elderi, commonly known as red velvet, is a flowering plant in the mint family Lamiaceae and is endemic to the south-west of Western Australia. It is a small shrub with its leaves densely covered with white, woolly hairs and with small clusters of reddish-purple, bell-shaped flowers.
Muniria megalophylla is a flowering plant in the mint family Lamiaceae and is endemic to Arnhem Land in the Northern Territory. It is a shrub with its branches and leaves densely covered with a layer of short, greyish, branched hairs and small groups of reddish-pink flowers near the ends of the branches.
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.
Hemiphora uncinata is a flowering plant in the mint family Lamiaceae and is endemic to the south-west of Western Australia. It is an erect, spreading shrub with its branches densely covered with white, woolly hairs. Its leaves are rough and wrinkled and the flowers are tube-shaped with deep pink petals with wavy edges.
Mairia crenata is a perennial herbaceous plant of mostly 2–15 cm (1–6 in) high that is assigned to the family Asteraceae. It has a woody rootstock of up to 5 cm (2 in) long, from which brown, fleshy roots develop. The five to eighteen, hard and leathery, spoon-shaped leaves are in one to three rosettes, have a distinct main vein, blunt or pointy tip, often dark red or blackish margins with rounded teeth and a ½–2 cm (0.2–0.8 in) long stalk-like foot, often initially somewhat woolly hairy, on particularly the lower surface and the main vein, but this is easily rubbed off the shiny surfaces. Each rosette produces mostly one, sometimes up to four, mostly rusty or whitish woolly hairy, brown or dark red inflorescence stalks, usually 1½–15 cm long, each with two to eight, initially woolly, line-shaped to oval bracts, the lowest up to 3 cm (1.2 in), decreasing size further up, and carrying mostly one, rarely up to three flower heads. The flower heads have a bell-shaped involucre with about 40 bracts, sixteen to thirty three violet to white ray florets of about 1¼–1⅞ cm long, and many yellow disc florets. The species flowers anywhere between February and December but only after a fire has destroyed the overhead biomass or serious disturbance. It is an endemic species that is restricted to the Eastern Cape and Western Cape provinces of South Africa.
Annona paludosa is a species of plant in the family Annonaceae. It is native to Brazil, French Guiana, Guyana, Suriname and Venezuela. Jean Baptiste Christophore Fusée Aublet, the French pharmacist and botanist who first formally described the species, named it after its swampy habitat.
Annona tomentosa is a species of plant in the family Annonaceae. It is native to Bolivia and Brazil. Robert Elias Fries, the Swedish botanist who first formally described the species, named it after the dense woolly hairs covering its branches and leaves.
Felicia nordenstamii is a flowering shrub in the family Asteraceae. It is found only in South Africa where it grows on limestone hills close to the sea on the southern coast. Felicia nordenstamii is a many-branched shrub growing up to 30 cm (1 ft) tall. The lower parts of the stems are covered in grayish brown bark and the upper stem has many crowded, upwardly angled, alternate leaves with long hairs on the lower surfaces. Large flower heads form at the tips of the branches, each about 41⁄2 cm across, with about thirty purplish blue ray florets surrounding many yellow disc florets.
Mairia coriacea is a perennial plant assigned to the family Asteraceae. It has broad, tough and leathery, evergreen leaves. These have a narrowed foot and an entire margin or a few shallow, irregular teeth. They grow in a rosette directly from the rootstock. The plant produces flower heads with one whorl of white to mauve ray florets around many yellow disc florets, with one or few on top of a dark reddish, woolly stalk. Flower heads appear after the overhead vegetation burnt down, often destroying the leaves in the process. It can be found in the southern mountains of South Africa's Western Cape province. It is called leather leaves in English.
Mairia hirsuta is a tufted perennial, herbaceous plant of up to 40 cm high, that is assigned to the family Asteraceae. Most of its narrow to broad elliptic or inverted egg-shaped leaves are part of the basal rosette, have margin that is rolled under, with rounded or pointy teeth or with some peg-like extensions, lightly woolly on the upper surface and densely woolly on the underside, but always the green remains visible. Flower heads have been found from July to November, mostly after a fire or when the soil has been disturbed. The species can be found in the southern mountains of the Western Cape province of South Africa.
Sabicea amomii is a species of woodvine in the family Rubiaceae, which is native to Cameroon. There are no synonyms.
Dampiera candicans is a plant in the family Goodeniaceae, native to Western Australia and the Northern Territory.
