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Echium Virescens
''Echium virescens'' is a flowering plant in the genus ''Echium''. It is endemic to the island of Tenerife, mainly in Macizo de Anaga and the Orotava Valley. It grows in forests and on lower south slopes of the island. Description It is a herbaceous plant and grows up to 2 m in height and requires plenty of sun and good drainage. It is a branched, bushy plant. It grows in rosettes with several dense and cylindrical inflorescences. These tops are forked, unlike the '' Echium webbii'' of the island of La Palma, that has simple lateral tops. It has dense foliage with green-grey leaves. These are thick and persistent, lanceolate, at the base, and smaller throughout the inflorescence, with hairs on both sides. It has pale blue or pink flowers from the end of winter to the beginning of spring. The sepals of the flowers are fused at the base. Uses This plant is used in garden A garden is a planned space, usually outdoors, set aside for the cultivation, display, and enjoyment of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echium
''Echium'' is a genus of approximately 70 species and several subspecies of flowering plant in the family Boraginaceae. Species of ''Echium'' are native to North Africa, mainland Europe to Central Asia, and the Macaronesian islands where the genus reaches its maximum diversity. 29 species of ''Echium'' are endemic to the Canary, Madeira, and Cape Verde archipelagos. The continental species are herbaceous, whereas all but two of the endemic species of the Macaronesian islands are woody perennial shrubs. Etymology The Latin genus name ''echium'' comes from the Greek ''echion'' referring to Echium plantagineum and itself deriving from ''echis'' "viper"; the Greek term dates to Dioscorides who noted a resemblance between the shape of the nutlets to a viper’s head. The genus Echium was published by Carl Linnaeus in 1753. Cultivation and uses Many species are used as ornamental and garden plants and may be found in suitable climates throughout the world. In Crete ''Echium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic (ecology)
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tenerife
Tenerife (; ; formerly spelled ''Teneriffe'') is the largest and most populous island of the Canary Islands. It is home to 43% of the total population of the archipelago. With a land area of and a population of 978,100 inhabitants as of January 2022, it is also the most populous island of Spain and of Macaronesia. Approximately five million tourists visit Tenerife each year; it is the most visited island in the archipelago. It is one of the most important tourist destinations in Spain and the world, hosting one of the world's largest carnivals, the Carnival of Santa Cruz de Tenerife. The capital of the island, , is also the seat of the island council (). That city and are the co-capitals of the autonomous community of the Canary Islands. The two cities are both home to governmental institutions, such as the offices of the presidency and the ministries. This has been the arrangement since 1927, when the Crown ordered it. (After the 1833 territorial division of Spain, until ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macizo De Anaga
Macizo de Anaga is a mountain range in the northeastern part of the island of Tenerife in the Canary Islands. The highest point is 1,024 m (Cruz de Taborno). It stretches from the Punta de Anaga in the northeast to Cruz del Carmen in the southwest. Anaga features the mountain peaks of Bichuelo, Anambro, Chinobre, Pico Limante, Cruz de Taborno and Cruz del Carmen. The mountains were formed by a volcanic eruption about 7 to 9 million years ago making it the oldest part of the island. Since 1987 it has been protected as a "natural park", reclassified as "rural park" in 1994. Since 2015 it is also an UNESCO Biosphere Reserve and is the place that has the largest number of endemic species in Europe. It is a remote and wild area characterized by humid forests, such as '' laurisilva''. Native plant species include ''Ceropegia dichotoma'', ''Ceropegia fusca'' and ''Echium virescens''. The Macizo de Anaga is also rich in archaeological finds, among which is the Mummy of San Andrés belo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orotava Valley
The Orotava Valley ( es, Valle de la Orotava) is an area in the northern part of the island of Tenerife, Canary Islands, Spain. The valley measures 10 km by 11 km, and stretches from the north coast to about 2,000 m elevation, at the northern foot of Pico del Teide. To the west and east, the valley is delimited by two steep escarpments, respectively the ''Ladera de Tigaiga'' and the ''Ladera de Santa Ursula''. The Orotava valley formed as the result of a large landslide some 560,000 years ago. The valley takes its name from La Orotava, the largest town in the area. Other towns are Los Realejos and Puerto de la Cruz. In the era of the Guanches The Guanches were the indigenous inhabitants of the Canary Islands in the Atlantic Ocean some west of Africa. It is believed that they may have arrived on the archipelago some time in the first millennium BCE. The Guanches were the only nativ ..., before the conquest by the Spanish in 1496, the valley was known as Taoro. Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echium Virescens
''Echium virescens'' is a flowering plant in the genus ''Echium''. It is endemic to the island of Tenerife, mainly in Macizo de Anaga and the Orotava Valley. It grows in forests and on lower south slopes of the island. Description It is a herbaceous plant and grows up to 2 m in height and requires plenty of sun and good drainage. It is a branched, bushy plant. It grows in rosettes with several dense and cylindrical inflorescences. These tops are forked, unlike the '' Echium webbii'' of the island of La Palma, that has simple lateral tops. It has dense foliage with green-grey leaves. These are thick and persistent, lanceolate, at the base, and smaller throughout the inflorescence, with hairs on both sides. It has pale blue or pink flowers from the end of winter to the beginning of spring. The sepals of the flowers are fused at the base. Uses This plant is used in garden A garden is a planned space, usually outdoors, set aside for the cultivation, display, and enjoyment of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosette (botany)
In botany, a rosette is a circular arrangement of leaves or of structures resembling leaves. In flowering plants, rosettes usually sit near the soil. Their structure is an example of a modified stem in which the internode gaps between the leaves do not expand, so that all the leaves remain clustered tightly together and at a similar height. Some insects induce the development of galls that are leafy rosettes. In bryophytes and algae, a rosette results from the repeated branching of the thallus as the plant grows, resulting in a circular outline. Taxonomies Many plant families have varieties with rosette morphology; they are particularly common in Asteraceae (such as dandelions), Brassicaceae (such as cabbage), and Bromeliaceae. The fern '' Blechnum fluviatile'' or New Zealand Water Fern (''kiwikiwi'') is a rosette plant. Function in flowering plants Often, rosettes form in perennial plants whose upper foliage dies back with the remaining vegetation protecting the plant. Ano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed on the axis of a plant. The modifications can involve the length and the nature of the internodes and the phyllotaxis, as well as variations in the proportions, compressions, swellings, adnations, connations and reduction of main and secondary axes. One can also define an inflorescence as the reproductive portion of a plant that bears a cluster of flowers in a specific pattern. The stem holding the whole inflorescence is called a peduncle. The major axis (incorrectly referred to as the main stem) above the peduncle bearing the flowers or secondary branches is called the rachis. The stalk of each flower in the inflorescence is called a pedicel. A flower that is not part of an inflorescence is called a solitary flower and its stalk is al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echium Webbii
''Echium webbii'' is a species of flowering plants of the family Boraginaceae. It is endemic to the Canary Islands, where it is restricted to the island of La Palma.Manuel Arechavaleta, S. Rodríguez, Nieves Zurita, A. García (Hrsg.): Lista de especies silvestres de Canarias. Hongos, plantas y animales terrestres' (''List of Forest Species of the Canary Islands''). 2009. Gobierno de Canarias, p. 151 The species was first described by Auguste-Henri de Coincy. The specific name ''webbii'' refers to botanist Philip Barker Webb. The flowers are normally blue and produced in numerous spikes in early summer, but a hybrid is sometimes seen with white or pink flower A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechani ...s. It grows to average height , maximum height . The plant is not very ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Palma
La Palma (, ), also known as ''La isla bonita'' () and officially San Miguel de La Palma, is the most north-westerly island of the Canary Islands, Spain. La Palma has an area of making it the fifth largest of the eight main Canary Islands. The total population at the end of 2020 was 85,840, of which 15,716 lived in the capital, Santa Cruz de La Palma and about 20,467 in Los Llanos de Aridane. Its highest mountain is the Roque de los Muchachos, at , being second among the peaks of the Canaries only to the peaks of the Teide massif on Tenerife. In 1815, the German geologist Leopold von Buch visited the Canary Islands. It was as a result of his visit to Tenerife, where he visited the Las Cañadas caldera, and then later to La Palma, where he visited the Taburiente caldera, that the Spanish word for cauldron or large cooking pot – "caldera" – was introduced into the geological vocabulary. In the center of the island is the Caldera de Taburiente National Park; one of four nation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthetic tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. Most leaves are flattened and have distinct upper (adaxial) and lower ( abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax and other features. Leaves are mostly green in color due to the presence of a compound called chlorophyll that is essential for photosynthesis as it absorbs light ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lanceolate
The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular or irregular, may be smooth or bearing hair, bristles or spines. For more terms describing other aspects of leaves besides their overall morphology see the leaf article. The terms listed here all are supported by technical and professional usage, but they cannot be represented as mandatory or undebatable; readers must use their judgement. Authors often use terms arbitrarily, or coin them to taste, possibly in ignorance of established terms, and it is not always clear whether because of ignorance, or personal preference, or because usages change with time or context, or because of variation between specimens, even specimens from the same plant. For example, whether to call leaves on the same tree "acuminate", "lanceolate", or "linear" could ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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