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Hellebore
Commonly known as hellebores (), the Eurasian genus ''Helleborus'' consists of approximately 20 species of herbaceous or evergreen perennial flowering plants in the family Ranunculaceae, within which it gave its name to the tribe of Helleboreae. Despite names such as "winter rose", "Christmas rose" and "Lenten rose", hellebores are not closely related to the rose family (Rosaceae). Many hellebore species are poisonous. Description The flowers have five petal-like sepals surrounding a ring of small, cup-like nectaries which are actually petals modified to hold nectar. The sepals do not fall as petals would, but remain on the plant, sometimes for many months. Recent research in Spain suggests that the persistence of the sepals contributes to the development of the seeds. Taxonomy The genus was established by Carl Linnaeus in volume one of his ''Species Plantarum'' in 1753. The scientific name ''Helleborus'' could derive from the Ancient Greek word (), the common name for ' ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helleborus Niger
''Helleborus niger'', commonly called Christmas rose or black hellebore, is an evergreen perennial flowering plant in the buttercup family, Ranunculaceae. It is poisonous. Although the flowers resemble wild roses (and despite its common name), Christmas rose does not belong to the rose family (Rosaceae). Taxonomy The black hellebore was described by Carl Linnaeus in volume one of his ''Species Plantarum'' in 1753. The Latin specific name ''niger'' (black) may refer to the colour of the roots. There are two subspecies: ''H. niger'' subsp. ''niger'' and ''H. niger'' subsp. ''macranthus'', which has larger flowers (up to 3.75 in/9 cm across). In the wild, ''H. niger'' subsp. ''niger'' is generally found in mountainous areas in Switzerland, southern Germany, Austria, Slovenia, Croatia and northern Italy. ''Helleborus niger'' subsp. ''macranthus'' is found only in northern Italy and possibly adjoining parts of Slovenia. Description ''Helleborus niger'' is an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helleborus Orientalis
''Helleborus orientalis'', the Lenten rose, is a perennial flowering plant and species of hellebore in the buttercup family, Ranunculaceae, native to Greece and Turkey. Description This perennial reaches tall, with glossy green palmate leaves composed of 7–9 leaflets with serrated leaf margins. Leathery in texture, the leaves are evergreen. The cup-shaped pendent flowers appear in late winter and spring, arising in groups of 1–4 on the ends of thick stems rising above the foliage. They have yellow stamens. All parts of the Lenten rose are poisonous. Sap coming into contact with the skin may cause temporary irritation, while ingestion of large quantities can cause burning of mouth and throat, vomiting, abdominal cramping, and diarrhea. Taxonomy Jean-Baptiste Lamarck described the species in 1789, giving it its current name of ''Helleborus orientalis'' (""). Within the genus '' Helleborus'', it has been classified in the section ''Helleborastrum'', and is closely related to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to coll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seed
A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiosperm plants. Seeds are the product of the ripened ovule, after the embryo sac is fertilized by sperm from pollen, forming a zygote. The embryo within a seed develops from the zygote, and grows within the mother plant to a certain size before growth is halted. The seed coat arises from the integuments of the ovule. Seeds have been an important development in the reproduction and success of vegetable gymnosperm and angiosperm plants, relative to more primitive plants such as ferns, mosses and liverworts, which do not have seeds and use water-dependent means to propagate themselves. Seed plants now dominate biological niches on land, from forests to grasslands both in hot and cold climates. The term "seed" also has a general meaning t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helleborus Argutifolius
''Helleborus argutifolius'', the holly-leaved hellebore, or Corsican hellebore, syn. ''H. corsicus'', ''H. lividus'' subsp. ''corsicus'' is a species of flowering plant in the family Ranunculaceae, native to Corsica and Sardinia. It is an evergreen perennial growing to tall by wide, with large leathery leaves comprising three spiny-toothed leaflets, and green bowl-shaped flowers in late winter and early spring. The Latin specific epithet ''argutifolius'' means “with sharp-toothed leaves” . In cultivation ''Helleborus argutifolius'' hybridises readily with the closely related '' H. lividus''. ''H. argutifolius'' has gained the Royal Horticultural Society's Award of Garden Merit The Award of Garden Merit (AGM) is a long-established annual award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. History The Award of Garden Merit .... References Helleborus argutifolius flow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helleborus Lividus (23794254383)
Commonly known as hellebores (), the Eurasian genus ''Helleborus'' consists of approximately 20 species of herbaceous or evergreen perennial flowering plants in the family Ranunculaceae, within which it gave its name to the tribe of Helleboreae. Despite names such as "winter rose", "Christmas rose" and "Lenten rose", hellebores are not closely related to the rose family (Rosaceae). Many hellebore species are poisonous. Description The flowers have five petal-like sepals surrounding a ring of small, cup-like nectaries which are actually petals modified to hold nectar. The sepals do not fall as petals would, but remain on the plant, sometimes for many months. Recent research in Spain suggests that the persistence of the sepals contributes to the development of the seeds. Taxonomy The genus was established by Carl Linnaeus in volume one of his ''Species Plantarum'' in 1753. The scientific name ''Helleborus'' could derive from the Ancient Greek word (), the common name for '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
