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Knowltonia (plant)
''Knowltonia'' is a genus of the family Ranunculaceae. There are 25 species native to South Africa and Latin America. The juice from the stem of many of the species in the genus is a powerful vesicant A blister agent (or vesicant), is a chemical compound that causes severe skin, eye and mucosal pain and irritation. They are named for their ability to cause severe chemical burns, resulting in painful water blisters on the bodies of those affe .... Species include IPNI accepts: the following species: * ''Knowltonia anemonoides'' H.Rasm. * ''Knowltonia assisbrasiliana'' (Kuhlm. & Porto) Christenh. & Byng * ''Knowltonia balliana'' (Britton) Christenh. & Byng * ''Knowltonia bracteata'' Harv. ex Zahlbr. * ''Knowltonia brevistylis'' Szyszyl. * ''Knowltonia caffra'' (Eckl. & Zeyh.) Christenh. & Byng ex Mosyakin & de Lange * '' Knowltonia capensis'' (L.) Huth * ''Knowltonia chilensis'' (Gay) Christenh. & Byng * ''Knowltonia cordata'' H.Rasm. * ''Knowltonia crassifolia'' (Hook.) Chris ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knowltonia Vesicatoria
''Knowltonia vesicatoria'' (Brandblaar) is an attractive, shade-loving plant of the family Ranunculaceae, that is indigenous to the southern parts of South Africa. This is one of at least ten species of '' Knowltonia'' that are native to South Africa. ''Knowltonia vesicatoria'' can be told apart from the other species by its leaves and stems being hairless, and by the slightly jagged, toothed margins of the leaves. It in turn has three subspecies: ''vesicatoria'', ''humilis'' and ''grossa''. This slow-growing plant forms clusters of dark green leaves on the forest floors where it grows. It produces white or yellow flowers in spring and then clusters of fleshy black fruits. A tough and adaptable plant that easily survives seasonal fires, Brandblaar grows in shady spots in Cape Fynbos, along the coast, in afro-montane forest and just about anywhere else - throughout the Cape Floristic Region, from Cape Town eastwards as far as Grahamstown. Further east - in the Eastern Cape an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Anthony Salisbury
Richard Anthony Salisbury, FRS (born Richard Anthony Markham; 2 May 1761 – 23 March 1829) was a British botanist. While he carried out valuable work in horticultural and botanical sciences, several bitter disputes caused him to be ostracised by his contemporaries. Life Richard Anthony Markham was born in Leeds, England, as the only son of Richard Markham, a cloth merchant and Elizabeth Laycock. His family included two sisters, including his older sister Mary (b. 1755). One of his sisters became a nun. His mother, was the great grand-daughter of Jonathan Laycock of Shaw Hill. Laycock in turn married Mary Lyte (b. 1537), brother of Henry Lyte, the botanist and translator of the herbal of Dodoens. Of this, he wrote "so I inherit a taste for botany from very ancient blood". He studied at a school near Halifax and by the age of eight had established a passion for plants. He attended medical school at the University of Edinburgh in 1780, where he would have at least ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranunculaceae
Ranunculaceae (buttercup or crowfoot family; Latin "little frog", from "frog") is a family of over 2,000 known species of flowering plants in 43 genera, distributed worldwide. The largest genera are ''Ranunculus'' (600 species), ''Delphinium'' (365), ''Thalictrum'' (330), ''Clematis'' (325), and ''Aconitum'' (300). Description Ranunculaceae are mostly herbaceous annuals or perennials, but some are woody climbers (such as ''Clematis'') or shrubs (e.g. ''Xanthorhiza''). Most members of the family have bisexual flowers which can be showy or inconspicuous. Flowers are solitary, but are also found aggregated in cymes, panicles, or spikes. The flowers are usually radially symmetrical but are also found to be bilaterally symmetrical in the genera ''Aconitum'' and ''Delphinium''. The sepals, petals, stamens and carpels are all generally free (not fused), the outer flower segments typically number four or five. The outer stamens may be modified to produce only nectar, as in Aqui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and to the east and northeast by Mozambique and Eswatini. It also completely enclaves the country Lesotho. It is the southernmost country on the mainland of the Old World, and the second-most populous country located entirely south of the equator, after Tanzania. South Africa is a biodiversity hotspot, with unique biomes, plant and animal life. With over 60 million people, the country is the world's 24th-most populous nation and covers an area of . South Africa has three capital cities, with the executive, judicial and legislative branches of government based in Pretoria, Bloemfontein, and Cape Town respectively. The largest city is Johannesburg. About 80% of the population are Black South Afri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin America
Latin America or * french: Amérique Latine, link=no * ht, Amerik Latin, link=no * pt, América Latina, link=no, name=a, sometimes referred to as LatAm is a large cultural region in the Americas where Romance languages — languages derived from Latin — are predominantly spoken. The term was coined in the nineteenth century, to refer to regions in the Americas that were ruled by the Spanish, Portuguese and French empires. The term does not have a precise definition, but it is "commonly used to describe South America, Central America, Mexico, and the islands of the Caribbean." In a narrow sense, it refers to Spanish America plus Brazil (Portuguese America). The term "Latin America" is broader than categories such as ''Hispanic America'', which specifically refers to Spanish-speaking countries; and ''Ibero-America'', which specifically refers to both Spanish and Portuguese-speaking countries while leaving French and British excolonies aside. The term ''Latin America'' was f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vesicant
A blister agent (or vesicant), is a chemical compound that causes severe skin, eye and mucosal pain and irritation. They are named for their ability to cause severe chemical burns, resulting in painful water blisters on the bodies of those affected. Although the term is often used in connection with large-scale burns caused by chemical spills or chemical warfare agents, some naturally occurring substances such as are also blister-producing agents (vesicants). [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knowltonia Capensis
''Knowltonia capensis'' (Brandblare) is an attractive, shade-loving plant of the family Ranunculaceae, that is indigenous to the Cape and Kwazulu-Natal regions of South Africa. The centre of this plant's natural distribution is the Eastern Cape, where it is also most common. However, it can be found to the east in Natal, and as far west as Cape Town, where the plant's western relative ''Knowltonia vesicatoria'' is more common. Throughout this area, it grows under trees and in other shady spots, especially in dense afro-montane forest. Like its close relative, ''Knowltonia vesicatoria ''Knowltonia vesicatoria'' (Brandblaar) is an attractive, shade-loving plant of the family Ranunculaceae, that is indigenous to the southern parts of South Africa. This is one of at least ten species of '' Knowltonia'' that are native to South ...'', this plant is also ideal for ornamental cultivation in shady gardens. It is tough and attractive, and does well in dense clumps or growing arou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
