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| Vangueria pygmaea | |
|---|---|
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| Vangueria pygmaea Schltr-Northcliff, Johannesburg, South Africa. | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Rubiaceae |
| Genus: | Vangueria |
| Species: | V. pygmaea |
| Binomial name | |
| Vangueria pygmaea | |
| Synonyms | |
Vangueria pygmaea is a species of flowering plant in the family Rubiaceae.
It is a small (5–15 cm) geofrutex, usually with a long rhizome. Because of these rhizomes, the species often reproduces clonally with as a consequence that many seemingly individual plants occur together. In winter no above ground parts are present, but in spring the densely pubescent leaves appear. Inflorescences are found at ground-level and are densely setose. Flowers are 5-merous and are white. Mature fruits are yellow-brown, round and around 1.5 cm large.
This species is easily confused with the more rare Vangueria thamnus , which is identical except for the absence of an indumentum. It is also similar to and occurs together with Pygmaeothamnus zeyheri , but this species has glabrous, shiny leaves that are organized in whorls of 3 or 4.
The species is found in Malawi, Tanzania, South Africa, Eswatini, Zambia, and Zimbabwe. It grows in open grasslands, often at higher elevations with a cooler climate.
It is related to the African medlar, Vangueria infausta , which is known for its edible fruits. Therefore, fruits of Vangueria pygmaea can be eaten too, however, this is not generally done.
The species is known to harbour endophytic Burkholderia bacteria and is known to cause gousiekte, a cardiotoxicosis of ruminants characterised by heart failure four to eight weeks after ingestion of certain rubiaceous plants. [1]
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.
Canna indica, commonly known as Indian shot, African arrowroot, edible canna, purple arrowroot, Sierra Leone arrowroot, is a plant species in the family Cannaceae. It is native to much of South America, Central America, the West Indies, and Mexico. It is also naturalized in the southeastern United States, and much of Europe, sub-Saharan Africa, Southeast Asia, and Oceania.
Pavetta is a genus of flowering plants in the family Rubiaceae. It comprises about 360 species of trees, evergreen shrubs and sub-shrubs. It is found in woodlands, grasslands and thickets in sub-tropical and tropical Africa and Asia. The plants are cultivated for their simple but variable leaves, usually opposite but also occur in triple whorls. The leaves are often membranous with dark bacterial nodules. Pavetta has small, white, tubular flowers, sometimes salviform or funnel-shaped with 4 spreading petal lobes. The flowers are carried on terminal corymbs or cymes.
Rytigynia is a genus of flowering plants in the family Rubiaceae. It is found in tropical and southern Africa. The genera Rytigynia and Fadogia form a strongly supported clade but neither of these genera is monophyletic.
Vangueria is a genus of flowering plants in the family Rubiaceae. The genus is named for Voa vanguer, as V. madagascariensis is known in Malagasy.
Curculigo capitulata is a stout herb that belongs to the genus Curculigo. It is known by the common names palm grass, whale back, and weevil lily, and by various synonyms, including Molineria capitulata. It ranges from the Himalayas and eastern India through Indochina, southern China, Malesia, and New Guinea to Queensland and the Solomon Islands. The plant has yellow flowers and oblong, papery pleated leaves with very short stems. In China and India, the plant has traditional uses as medicine to treat diseases such as hemorrhoids, asthma, and consumptive cough. In Southeast Asia, the plant is also used as food wrapping and the fibres are used to make fishing nets, ropes and false hair. However, in recent years Molineria capitulata is more often used as ornamental plants in gardens. In recent studies, M. capitulata was also found to have potential in treating several chronic diseases due to its high antifungal, antioxidant, cytotoxic, thrombolytic, anti-inflammatory, and analgesic activities.
Thaumatococcus daniellii is a plant species from tropical Africa of the Marantaceae family. It is a large, rhizomatous, flowering herb native to the rainforests of western Africa in Sierra Leone, southeast to Gabon and the Democratic Republic of the Congo. It is also an introduced species in Australia and Singapore.
Dichapetalum cymosum, commonly known as gifblaar from Afrikaans, or occasionally by its English translation, poison leaf, is a small prostrate shrub occurring in northern parts of Southern Africa in the family Dichapetalaceae. It is notable as a common cause of lethal cattle poisoning in this region and is considered one of the 'big 6' toxic plants of cattle in South Africa. A 1996 estimate of plant poisonings in South Africa attributes 8% of cattle mortality caused by poisonous plants to it. The majority (70%) of fatal cases are in Limpopo province, with 10% each in North West, Mpumalanga, and Gauteng. Fluoroacetate, the poison used to synthetically produce Compound 1080 used extensively in New Zealand, occurs in all parts of the plant and is responsible for the toxic effects shown.
Anemone thomsonii is a species of flowering plant in the buttercup family Ranunculaceae. It is a low to high (7–70 cm) geophyte with finely divided leaves from the ground, and a stem that carries one flower, which has about twenty sepals, that are white or light pink inside and mostly have a very wide purple stripe at the outside. The species is limited to the highlands of East Africa.
Vangueria infausta, the medlar or African medlar, is a species of plant in the family Rubiaceae, which is native to the southern and eastern Afrotropics. Some other names for V. infausta in Southern African languages include mmilo in Northern Sotho, muzwilu in Venḓa, umviyo in Southern Ndebele, mothwani in Tswana and umtulwa in Zulu.
Chrysocephalum semipapposum, commonly known as clustered everlasting is a perennial shrub native to Australia. Clustered everlasting belongs to the family Asteraceae. C. semipapposum produces terminal flowers heads in clusters, mainly between spring and early summer with silver-grey appearing stems and branches. It grows up to 40cm high and 60 cm high, although there have been some varieties which can grow up to 1 m. C. semipapposum is often confused with Chrysocephalum apiculatum or 'yellow buttons', due to their similar appearances. C. semipapposum has 4 different subspecies, however they lack distinctive qualities and are often hard to identify. C. semipapposum is endemic to Australia and can be found in multiple states, most notably within Victoria. The plant is found in a variety of habitats including dry rocky regions. Clustered everlasting often grows sparsely and is rarely found in abundance and can be mistaken for a weed. Clustered everlasting has many uses, including as a source of nectar for butterflies, cut flowers or as an addition to a garden.
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.
Fadogia is a genus of flowering plants in the family Rubiaceae. The genera Rytigynia and Fadogia form a strongly supported clade but neither of these genera is monophyletic.
Brabejum is a genus of a single species of large evergreen tree, Brabejum stellatifolium in the family Proteaceae, commonly called wild almond, bitter almond or ghoeboontjie. It is restricted in the wild to South Africa's Western Cape province, where it grows in thickets along the banks of streams. The plant is of botanical interest as being Africa's only member of the large grevilleoid subfamily. It is a bushy small tree with branches widely at ground level and numerous erect vigorous stems. Leaves grow up to 6 in (15 cm) long, narrow and bluntly toothed, appear at intervals along the branches, mostly in whorls of 6. In summer, the plant bears white flowers densely crowded on spikes arising from rusty buds at the leaf axils. The fruits to 2 in (5 cm) long, magenta to reddish brown, similar to an almond, appear in autumn. The nut is too bitter to eat; however, in earlier times it was boiled, roasted, and ground to make a "coffee" drink.
Vangueria madagascariensis, commonly known by the names Spanish-tamarind, tamarind-of-the-Indies, or voa vanga, is a species of flowering plant in the family Rubiaceae native to the African continent having edible fruit. It is the type species of the genus Vangueria and was described in 1791 by Johann Friedrich Gmelin.
Fadogiella is a small genus of flowering plants in the family Rubiaceae. It was described by Walter Robyns in 1928.
Globulostylis is a genus of flowering plants in the family Rubiaceae. It comprises 8 species growing in Central Africa.
Fadogia homblei is a 60 cm-tall erect perennial sub-Saharan shrublet with subterranean stems producing unbranched annual shoots, and is one of some 47 species of Fadogia in the family Rubiaceae. It occurs in Angola, Tanzania, Malawi, Mozambique, Zambia, Zimbabwe, and in Limpopo and Gauteng Provinces in South Africa.
Gardenia volkensii, commonly known as bushveldt gardenia or Transvaal gardenia, is a species of plant in the family Rubiaceae native to southern Africa.
Maianthemum amoenum is a perennial flowering plant, growing as an epiphyte on trees in cloud forests from Mexico south to Honduras.
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