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Greater Broomrape
''Orobanche rapum-genistae'', the greater broomrape, is a plant species in the genus ''Orobanche''. It is a parasitic plant, native to Europe, growing on the roots of plants in the bean family, usually common broom or European gorse. Description The broomrapes are perennial, parasitic plants which contain no chlorophyll and are totally dependent on other plants to provide their nutrients. The greater broomrape can grow to a height of with a honey-brown downy stem, persisting as a dark brown dead spike after flowering. The leaves are represented by small pointed scales, concentrated near the base of the stem, and there is a single bract, which is longer than the flower, below each flower. These have a corolla with two lips, four stamens and a curved-down style. The upper lip is hooded and the lower lip has three lobes, the central one being the largest. The fruits are egg-shaped and enclosed in the dead flowerhead, and the seeds are minute. Distribution and habitat The greater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cytisus Scoparius
''Cytisus scoparius'' ( syn. ''Sarothamnus scoparius''), the common broom or Scotch broom, is a deciduous leguminous shrub native to western and central Europe. In Britain and Ireland, the standard name is broom; this name is also used for other members of the Genisteae tribe, such as French broom or Spanish broom; and the term ''common broom'' is sometimes used for clarification. In other English-speaking countries, the most common name is "Scotch broom" (or Scots broom); however, it is known as English broom in Australia. Classification The two subspecies of ''Cytisus scoparius'' are: * ''Cytisus scoparius'' subsp. ''scoparius'' - throughout the species' range * ''Cytisus scoparius'' subsp. ''maritimus'' (Rouy) Heywood - Western Europe, on maritime cliffs, differs in prostrate growth, not over 0.4 m tall, and downy young shoots Cultivation ''Cytisus scoparius'' is widely cultivated as an ornamental plant, with several cultivars selected for variation in flower colour, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orobanche Rapum-genistae Subsp
''Orobanche'', commonly known as broomrape, is a genus of over 200 species of small parasitic herbaceous plants, mostly native to the temperate Northern Hemisphere. It is the type genus of the broomrape family Orobanchaceae. Description Broomrapes are generally small, only tall depending on species. They are best recognized by the yellow- to straw-coloured stems completely lacking chlorophyll, bearing yellow, white, or blue snapdragon-like flowers. The flower shoots are scaly, with a dense terminal spike of 10-20 flowers in most species, although single in one-flowered broomrape (''Orobanche uniflora''). The leaves are merely triangular scales. The seeds are minute, tan or brown, blackening with age. These plants generally flower from late winter to late spring. When they are not flowering, no part of the plants is visible above the surface of the soil. Parasitism As they have no chlorophyll, the broomrapes are totally dependent on other plants for nutrients. Broomrape se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orobanche
''Orobanche'', commonly known as broomrape, is a genus of over 200 species of small parasitic herbaceous plants, mostly native to the temperate Northern Hemisphere. It is the type genus of the broomrape family Orobanchaceae. Description Broomrapes are generally small, only tall depending on species. They are best recognized by the yellow- to straw-coloured stems completely lacking chlorophyll, bearing yellow, white, or blue snapdragon-like flowers. The flower shoots are scaly, with a dense terminal spike of 10-20 flowers in most species, although single in one-flowered broomrape (''Orobanche uniflora''). The leaves are merely triangular scales. The seeds are minute, tan or brown, blackening with age. These plants generally flower from late winter to late spring. When they are not flowering, no part of the plants is visible above the surface of the soil. Parasitism As they have no chlorophyll, the broomrapes are totally dependent on other plants for nutrients. Broomrape seeds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitism
Parasitism is a Symbiosis, close relationship between species, where one organism, the parasite, lives on or inside another organism, the Host (biology), host, causing it some harm, and is Adaptation, adapted structurally to this way of life. The entomologist E. O. Wilson has characterised parasites as "predators that eat prey in units of less than one". Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as Armillaria mellea, honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the Orobanchaceae, broomrapes. There are six major parasitic Behavioral ecology#Evolutionarily stable strategy, strategies of exploitation of animal hosts, namely parasitic castration, directly transmitted parasitism (by contact), wikt:trophic, trophicallytransmitted parasitism (by being eaten), Disease vector, vector-transmitted paras ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fabaceae
The Fabaceae or Leguminosae,International Code of Nomenclature for algae, fungi, and plants. Article 18.5 states: "The following names, of long usage, are treated as validly published: ....Leguminosae (nom. alt.: Fabaceae; type: Faba Mill. Vicia L.; ... When the Papilionaceae are regarded as a family distinct from the remainder of the Leguminosae, the name Papilionaceae is conserved against Leguminosae." English pronunciations are as follows: , and . commonly known as the legume, pea, or bean family, are a large and agriculturally important of |
Ulex Europaeus
''Ulex europaeus'', the gorse, common gorse, furze or whin, is a species of flowering plant in the family Fabaceae, native to the British Isles and Western Europe. Description Growing to tall, it is an evergreen shrub. The young stems are green, with the shoots and leaves modified into green spines, long. Young seedlings produce normal leaves for the first few months; these are trifoliate, resembling a small clover leaf. The solitary flowers are yellow, long, with the pea-flower structure typical of the Fabaceae; they are produced throughout the year, but mainly over a long period in spring. They are coconut-scented. The fruit is a legume (pod) long, dark purplish-brown, partly enclosed by the pale brown remnants of the flower; the pod contains 2–3 small blackish, shiny, hard seeds, which are ejected when the pod splits open in hot weather. Seeds remain viable for 30 years. Like many species of gorse, it is often a fire-climax plant, which readily catches fire but re-g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorophyll
Chlorophyll (also chlorophyl) is any of several related green pigments found in cyanobacteria and in the chloroplasts of algae and plants. Its name is derived from the Greek words , ("pale green") and , ("leaf"). Chlorophyll allow plants to absorb energy from light. Chlorophylls absorb light most strongly in the blue portion of the electromagnetic spectrum as well as the red portion. Conversely, it is a poor absorber of green and near-green portions of the spectrum. Hence chlorophyll-containing tissues appear green because green light, diffusively reflected by structures like cell walls, is less absorbed. Two types of chlorophyll exist in the photosystems of green plants: chlorophyll ''a'' and ''b''. History Chlorophyll was first isolated and named by Joseph Bienaimé Caventou and Pierre Joseph Pelletier in 1817. The presence of magnesium in chlorophyll was discovered in 1906, and was that element's first detection in living tissue. After initial work done by German chemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petal
Petals are modified Leaf, leaves that surround the reproductive parts of flowers. They are often advertising coloration, brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corolla''. Petals are usually accompanied by another set of modified leaves called sepals, that collectively form the ''calyx'' and lie just beneath the corolla. The calyx and the corolla together make up the perianth, the non-reproductive portion of a flower. When the petals and sepals of a flower are difficult to distinguish, they are collectively called tepals. Examples of plants in which the term ''tepal'' is appropriate include Genus, genera such as ''Aloe'' and ''Tulipa''. Conversely, genera such as ''Rose, Rosa'' and ''Phaseolus'' have well-distinguished sepals and petals. When the undifferentiated tepals resemble petals, they are referred to as "petaloid", as in petaloid monocots, orders of monocots with brightly colored tepals. Sinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Host (biology)
In biology and medicine, a host is a larger organism that harbours a smaller organism; whether a parasite, parasitic, a mutualism (biology), mutualistic, or a commensalism, commensalist ''guest'' (symbiont). The guest is typically provided with nourishment and shelter. Examples include animals playing host to parasitic worms (e.g. nematodes), cell (biology), cells harbouring pathogenic (disease-causing) viruses, a Fabaceae, bean plant hosting mutualistic (helpful) Rhizobia, nitrogen-fixing bacteria. More specifically in botany, a host plant supplies nutrient, food resources to micropredators, which have an evolutionarily stable strategy, evolutionarily stable relationship with their hosts similar to ectoparasitism. The host range is the collection of hosts that an organism can use as a partner. Symbiosis Symbiosis spans a wide variety of possible relationships between organisms, differing in their permanence and their effects on the two parties. If one of the partners in an ass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genista Tinctoria
''Genista tinctoria'', the dyer's greenweed or dyer's broom, is a species of flowering plant in the family Fabaceae. Its other common names include dyer's whin, waxen woad and waxen wood. The Latin specific epithet ''tinctoria'' means "used as a dye". Description It is a variable deciduous shrub growing to tall by wide, the stems woody, slightly hairy, and branched. The alternate, nearly sessile leaves are glabrous and lanceolate. Golden yellow pea-like flowers are borne in erect narrow racemes from spring to early summer. The fruit is a long, shiny pod shaped like a green bean pod. Distribution and habitat This species is native to meadows and pastures in Europe and Turkey. Properties and uses Numerous cultivars have been selected for garden use, of which 'Royal Gold' has gained the Royal Horticultural Society's Award of Garden Merit. The plant, as its Latin and common names suggest, has been used from ancient times for producing a yellow dye, which combined with woad als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Casterton Road Banks
Great Casterton Road Banks is a biological Site of Special Scientific Interest on the western outskirts of Stamford in Lincolnshire. It is managed by the Lincolnshire Wildlife Trust. This small site has calcareous grassland on Eastern Jurassic Limestone, and it is dominated by upright brome and tor-grass. It is the only site in the county which has sulphur clover, and it has two other regionally rare species, greater broomrape and perennial flax ''Linum perenne'', the perennial flax, blue flax or lint, is a flowering plant in the family Linaceae, native to Europe, primarily in the Alps and locally in England. It has been introduced into North America, where it can be found on mountain ri .... There is access from Old Great North Road. References {{commons category, Great Casterton Road Banks Sites of Special Scientific Interest in Lincolnshire Lincolnshire Wildlife Trust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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