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Pteronia Paniculata
''Pteronia paniculata'' ("Gombos" or "gum-bush") is a species of flowering plant in the family Asteraceae, indigenous to the Karoo regions of South Africa. Description This aromatic species has sticky leaves but, unlike some other ''Pteronia'' species, the flowers are not sticky. It has slender, furrowed, needle, incurved, green leaves, held in opposite pairs. It forms clusters of flowers (several capitula) at the tips of its branches. This helps to distinguish it from the otherwise similar species ''Pteronia pallens''. Distribution This species is widespread, occurring from Namibia to the Robertson Karoo in the south, as well as eastwards into the Eastern Cape. Its natural habitat is dry, rocky apronveld and it is extremely common. Due to its being inedible for livestock, it achieves unnatural densities in areas that are overgrazed. It often cooccurs with its close relatives, ''Pteronia pallens'' or ''Pteronia incana ''Pteronia incana'' ("Asbos" or "ash-bush") is a sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Peter Thunberg
Carl Peter Thunberg, also known as Karl Peter von Thunberg, Carl Pehr Thunberg, or Carl Per Thunberg (11 November 1743 – 8 August 1828), was a Swedish naturalist and an "apostle" of Carl Linnaeus. After studying under Linnaeus at Uppsala University, he spent seven years travelling in southern Africa and Asia, collecting and describing many plants and animals new to European science, and observing local cultures. He has been called "the father of South African botany", "pioneer of Occidental Medicine in Japan", and the "Japanese Linnaeus". Early life Thunberg was born and grew up in Jönköping, Sweden. At the age of 18, he entered Uppsala University where he was taught by Carl Linnaeus, regarded as the "father of modern taxonomy". Thunberg graduated in 1767 after 6 years of studying. To deepen his knowledge in botany, medicine and natural history, he was encouraged by Linnaeus in 1770 to travel to Paris and Amsterdam. In Amsterdam and Leiden Thunberg met the Dutch botanis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of broad-leaved trees, shrubs and vines, and most aquatic plants. The term "angiosperm" is derived from the Greek words ἀγγεῖον / ('container, vessel') and σπέρμα / ('seed'), meaning that the seeds are enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Angiosperms are distinguished from the other seed-producing plants, the gymnosperms, by having flowers, xylem consisting of vessel elements instead of tracheids, endosperm within their seeds, and fruits that completely envelop the seeds. The ancestors of flowering plants diverged from the common ance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions in a wide variety of habitats. Most occur in hot desert and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karoo
The Karoo ( ; from the Afrikaans borrowing of the South Khoekhoe !Orakobab or Khoemana word ''ǃ’Aukarob'' "Hardveld") is a semi- desert natural region of South Africa. No exact definition of what constitutes the Karoo is available, so its extent is also not precisely defined. The Karoo is partly defined by its topography, geology and climate, and above all, its low rainfall, arid air, cloudless skies, and extremes of heat and cold.Potgieter, D.J. & du Plessis, T.C. (1972) ''Standard Encyclopaedia of Southern Africa''. Vol. 6. pp. 306–307. Nasou, Cape Town.''Reader’s Digest Illustrated Guide to Southern Africa''. (5th Ed. 1993). pp. 78–89. Reader’s Digest Association of South Africa Pty. Ltd., Cape Town. The Karoo also hosted a well-preserved ecosystem hundreds of million years ago which is now represented by many fossils. The ǃ’Aukarob formed an almost impenetrable barrier to the interior from Cape Town, and the early adventurers, explorers, hunters, and traveler ... [...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 Sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pteronia Paniculata - Ashton - B
''Pteronia'' ("resin daisies") is a genus of evergreen, woody perennial plants assigned to the family Asteraceae with currently 76 described species. Like in almost all Asteraceae, the individual flowers are 5-merous, small and clustered in typical heads, surrounded by an involucre of bracts. In ''Pteronia'', the centre of the head is taken by relatively few, yellow, disc florets, while a ring of ligulate florets is absent. These florets sit on a common base (or receptacle). Taxonomy A species of Gombos was first described and assigned to the new genus ''Pteronia'' by the famous Swedish naturalist Carl Linnaeus in the second edition of his groundbreaking Species Plantarum, the starting point of modern botanical nomenclature, that was published in 1763. He had not seen living plants or dried herbarium specimens, but based his description on an etching made by the English botanist Leonard Plukenet in 1700. This etching probably represents ''Pteronia camphorata'', which has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pteronia
''Pteronia'' ("resin daisies") is a genus of evergreen, woody perennial plants assigned to the family Asteraceae with currently 76 described species. Like in almost all Asteraceae, the individual flowers are 5-merous, small and clustered in typical heads, surrounded by an involucre of bracts. In ''Pteronia'', the centre of the head is taken by relatively few, yellow, disc florets, while a ring of ligulate florets is absent. These florets sit on a common base (or receptacle). Taxonomy A species of Gombos was first described and assigned to the new genus ''Pteronia'' by the famous Swedish naturalist Carl Linnaeus in the second edition of his groundbreaking Species Plantarum, the starting point of modern botanical nomenclature, that was published in 1763. He had not seen living plants or dried herbarium specimens, but based his description on an etching made by the English botanist Leonard Plukenet in 1700. This etching probably represents '' Pteronia camphorata'', which has b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pteronia Pallens
''Pteronia pallens'' ("Scholtzbos" or "Aasvoëlbos / Witbas") is a species of flowering plant in the family Asteraceae, indigenous to the Karoo regions of South Africa. Its natural habitat is dry, rocky slopes. It often cooccurs with its close relatives, ''Pteronia paniculata'' or ''Pteronia incana''. Description A small shrub with pale woody stem. The leaves are slender, blunt-ended, channeled and green. One to three rounded, discoid flower heads appear at the tips of the branches. This helps to distinguish it from the otherwise similar species ''Pteronia paniculata''. Distribution This species occurs in the western Little Karoo, the western Great Karoo and into the Northern Cape Province. It usually grows on lower slopes on silt or sand that is often calciferous (often overlying calcrete). References Pteronia, pallens Endemic flora of the Cape Provinces Least concern plants Plants described in 1917 {{Astereae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pteronia Paniculata - Koo 2
''Pteronia'' ("resin daisies") is a genus of evergreen, woody perennial plants assigned to the family Asteraceae with currently 76 described species. Like in almost all Asteraceae, the individual flowers are 5-merous, small and clustered in typical heads, surrounded by an involucre of bracts. In ''Pteronia'', the centre of the head is taken by relatively few, yellow, disc florets, while a ring of ligulate florets is absent. These florets sit on a common base (or receptacle). Taxonomy A species of Gombos was first described and assigned to the new genus ''Pteronia'' by the famous Swedish naturalist Carl Linnaeus in the second edition of his groundbreaking Species Plantarum, the starting point of modern botanical nomenclature, that was published in 1763. He had not seen living plants or dried herbarium specimens, but based his description on an etching made by the English botanist Leonard Plukenet in 1700. This etching probably represents ''Pteronia camphorata'', which has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robertson Karoo
Robertson Karoo is a semi-arid vegetation type, restricted to sections of the Breede River Valley, Western Cape Province, South Africa. It is a subtype of Succulent Karoo (geographically an extension of the "Little Karoo") and is characterised by the dominance of succulent plant species, and by several endemic plants and animals. Location and extent This vegetation type occurs in several large patches within the Breede River Valley, in the Western Cape Province of South Africa. It occurs in the area between Worcester in the north-west, Ashton in the east, and the Riviersonderend mountains in the south. Landscape and climate Robertson Karoo typically consists of low hills and flats covered in small succulent vegetation, usually growing on rocky shale-based soils. The climate is semi-arid due to the region lying in the rainshadow of the large mountain ranges to the south-west, but the rainfall does tend to occur mainly in winter. This vegetation type has a large number of endem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Cape
The Eastern Cape is one of the provinces of South Africa. Its capital is Bhisho, but its two largest cities are East London and Gqeberha. The second largest province in the country (at 168,966 km2) after Northern Cape, it was formed in 1994 out of the Xhosa homelands or bantustans of Transkei and Ciskei, together with the eastern portion of the Cape Province. The central and eastern part of the province is the traditional home of the indigenous Xhosa people. In 1820 this area which was known as the Xhosa Kingdom began to be settled by Europeans who originally came from England and some from Scotland and Ireland. Since South Africa's early years, many Xhosas believed in Africanism and figures such as Walter Rubusana believed that the rights of Xhosa people and Africans in general, could not be protected unless Africans mobilized and worked together. As a result, the Eastern Cape is home to many anti-apartheid leaders such as Robert Sobukwe, Oliver Tambo, Nelson Mandela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
