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Acanthus Spinosus
''Acanthus spinosus'', the spiny bear's breech, is a species of flowering plant in the family Acanthaceae, native to southern Europe, from Italy to western Turkey. It is an herbaceous perennial growing to tall by wide. The deeply cut leaves have spiny margins, and in early summer it bears erect, long racemes of white flowers with maroon bracts. It is thought that both ''A. spinosus'' and its close relative '' A. mollis'' were introduced to Britain as ornamental and herbal plants from the Mediterranean in Roman times. It has been intermittently cultivated ever since, and is now a regular feature of the herbaceous border A herbaceous border is a collection of perennial herbaceous plants (plants that live for more than two years and are soft-stemmed and non-woody) arranged closely together, usually to create a dramatic effect through colour, shape or large scale. .... For centuries, stone or bronze stylized versions of acanthus leaves have appeared as decoration on certain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco Botanical Garden
The San Francisco Botanical Garden at Strybing Arboretum (formerly Strybing Arboretum) is located in San Francisco's Golden Gate Park. Its 55 acres (22.3 ha) represents nearly 9,000 different kinds of plants from around the world, with particular focus on Magnolia species, high elevation palms, conifers, and cloud forest species from Central America, South America and Southeast Asia. San Francisco's County Fair Building is located near the main entrance to the Garden. History Plans for the garden were originally laid out in the 1880s by park supervisor John McLaren, but funding was insufficient to begin construction until Helene Strybing left a major bequest in 1927. Planting was begun in 1937 with WPA funds supplemented by local donations, and the Arboretum officially opened in May 1940. As a part of Golden Gate Park, it is officially managed by the city of San Francisco, but the San Francisco Botanical Garden Society plays an important role in providing educational ... [...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 collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...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. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants that produce their seeds 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 (). Like gymnosperms, angiosperms are seed-producing plants. They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from the common ancestor of all living gymnosperms before the end of the Carboniferous, over 300 million years ago. The closest fossil relatives of flowering plants are uncertain and contentious. The earliest angiosperm fossils ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Native Plant
In biogeography, a native species is indigenous to a given region or ecosystem if its presence in that region is the result of only local natural evolution (though often popularised as "with no human intervention") during history. The term is equivalent to the concept of indigenous or autochthonous species. Every wild organism (as opposed to a domesticated organism) is known as an introduced species within the regions where it was anthropogenically introduced. If an introduced species causes substantial ecological, environmental, and/or economic damage, it may be regarded more specifically as an invasive species. The notion of nativity is often a blurred concept, as it is a function of both time and political boundaries. Over long periods of time, local conditions and migratory patterns are constantly changing as tectonic plates move, join, and split. Natural climate change (which is much slower than human-caused climate change) changes sea level, ice cover, temperature, and r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbaceous
Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of the ''Shorter Oxford English Dictionary'' defines "herb" as: #"A plant whose stem does not become woody and persistent (as in a tree or shrub) but remains soft and succulent, and dies (completely or down to the root) after flowering"; #"A (freq. aromatic) plant used for flavouring or scent, in medicine, etc.". (See: Herb) The same dictionary defines "herbaceous" as: #"Of the nature of a herb; esp. not forming a woody stem but dying down to the root each year"; #"BOTANY Resembling a leaf in colour or texture. Opp. scarious". Botanical sources differ from each other on the definition of "herb". For instance, the Hunt Institute for Botanical Documentation includes the condition "when persisting over more than one growing season, the parts of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perennial
A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also widely used to distinguish plants with little or no woody growth (secondary growth in girth) from trees and shrubs, which are also technically perennials. Perennialsespecially small flowering plantsthat grow and bloom over the spring and summer, die back every autumn and winter, and then return in the spring from their rootstock or other overwintering structure, are known as herbaceous perennials. However, depending on the rigours of local climate (temperature, moisture, organic content in the soil, microorganisms), a plant that is a perennial in its native habitat, or in a milder garden, may be treated by a gardener as an annual and planted out every year, from seed, from cuttings, or from divisions. Tomato vines, for example, live several ye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bract
In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or of a different color, shape, or texture. Typically, they also look different from the parts of the flower, such as the petals or sepals. A plant having bracts is referred to as bracteate or bracteolate, while one that lacks them is referred to as ebracteate and ebracteolate, without bracts. Variants Some bracts are brightly-coloured and serve the function of attracting pollinators, either together with the perianth or instead of it. Examples of this type of bract include those of ''Euphorbia pulcherrima'' (poinsettia) and ''Bougainvillea'': both of these have large colourful bracts surrounding much smaller, less colourful flowers. In grasses, each floret (flower) is enclosed in a pair of papery bracts, called the lemma (lower bract) and p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthus Mollis
''Acanthus mollis'', commonly known as bear's breeches, sea dock, bear's foot plant, sea holly, gator plant or oyster plant, is a species of plant in the family Acanthaceae and is native to the Mediterranean region. It is a leafy, clump-forming perennial herb, with a rosette of relatively large, lobed or toothed leaves, and purplish and white flowers on an erect spike. Description ''Acanthus mollis'' is a leafy, clump-forming perennial herb with tuberous roots. It has a basal rosette of dark glossy green, lobed or divided, glabrous leaves long and wide on a petiole long. The flowers are borne on an erect spike up to tall emerging from the leaf rosette. The sepals are purplish and function as the upper and lower lips of the petals, the upper lip about long and the lower lip long. The petals are about long and form a tube with a ring of hairs where the stamens are attached. Flowering occurs in summer and the fruit is a sharply-pointed capsule about long containing one o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbaceous Border
A herbaceous border is a collection of perennial herbaceous plants (plants that live for more than two years and are soft-stemmed and non-woody) arranged closely together, usually to create a dramatic effect through colour, shape or large scale. The term herbaceous border is mostly in use in the United Kingdom and the Commonwealth. In North America, the term perennial border is normally used. Herbaceous borders as they are known today were first popularly used in gardens in the Victorian era. Hybridization and new imported plant species revolutionized the form of British gardens in the 18th and 19th centuries. In addition, the works of Gertrude Jekyll, a British 20th-century garden designer and prolific writer, popularized the use of the ''herbaceous border'' through a revival of the British cottage garden. Maintaining the herbaceous border is work-intensive, as the perennials have to be dug up every 3–4 years and divided to keep the bed clean-looking and prevent overgro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthus (ornament)
The acanthus ( grc, ἄκανθος) is one of the most common plant forms to make foliage ornament and decoration, and even as the leaf distinguishing the heraldic coronet of a manorial lord from other coronets of royalty or nobility, which use strawberry leaves. Architecture In architecture, an ornament may be carved into stone or wood to resemble leaves from the Mediterranean species of the '' Acanthus'' genus of plants, which have deeply cut leaves with some similarity to those of the thistle and poppy. Both ''Acanthus mollis'' and the still more deeply cut ''Acanthus spinosus'' have been claimed as the main model, and particular examples of the motif may be closer in form to one or the other species; the leaves of both are, in any case, rather variable in form. The motif is found in decoration in nearly every medium. The relationship between acanthus ornament and the acanthus plant has been the subject of a long-standing controversy. Alois Riegl argued in his ''Stilfragen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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