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Taraxacum Erythrospermum
''Taraxacum erythrospermum'', known by the common name red-seeded dandelion, is a species of Taraxacum, dandelion introduced species, introduced to much of North America, but most commonly found in the north. It is often considered as a Variety (botany), variety of ''Taraxacum laevigatum'' (i.e., ''Taraxacum laevigatum'' var. ''erythrospermum''). In many characteristics, it is similar to the common dandelion, ''Taraxacum officinale''. Description This species is very similar to, and often mistaken for, the common dandelion, ''Taraxacum officinale''. It most readily differs by its reddish-brown seed bases, unlike the more olive colored seeds of ''T. officinale''. The red-seeded dandelion can also be identified by its Leaf, leaves, which have consistently triangular lobes throughout, whereas ''T. officinale'' tends to have erratic Lobed leaf, lobing with minimal or no triangular form. The leaves of ''T. erythrospermum'' thus bear a closer resemblance to the basal leaves of sow thist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antoni Andrzejowski
Antoni Lukianowicz Andrzejowski (also Anton and Andrzeiovski, Andrzeiowski, Andrzeiowsky, , Anton Lukjanowitsch Andrschejowski) was a Russian-Polish botanist, zoologist and paleontologist. He also used the pseudonym Stary Detiuk, meaning "old Detiuk". Early life and education Andrzejowski was born the son of a bank clerk and property manager in the village of in the present-day Rivne Oblast in Ukraine. He grew up in various places in western Ukraine and studied in Vilnius after his father's death in 1801. Andrzejowski was a student of the botanists Franz Scheidt and Wilibald Swibert Joseph Gottlieb von Besser in Kremenets. Career in botany Andrzejowski was a teacher at the lyceum in Kremenets. After his Polish language, Polish-language lyceum was dissolved in 1832, he was an assistant to Wilibald Swibert Joseph Gottlieb von Besser and lecturer at Taras Shevchenko National University of Kyiv, Kiev University beginning in 1832. He had to give up that position when the Russian E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilibald Swibert Joseph Gottlieb Von Besser
Wilibald Swibert Joseph Gottlieb von Besser (7 July 1784 – 11 October 1842), known in Russia as Vilibald Gotlibovich Besser () was an Austrian-born botanist active in former eastern territories of Poland occupied by the Russian Empire, who worked most of his life within today’s territory of western Ukraine. Born in Innsbruck, he lost both of his parents when he was 13, after which he was raised by his godfather, , who was a professor of botany at the University of Lwów. Besser received his initial education at Lwów, then entered university there to study medicine while also practising botany under the guidance of Schivereck, starting a large collection of botanical specimens. Upon the closure of the University of Lwów, von Besser accompanied Schivereck to his new teaching position in Krakow, where the latter died in 1806, leaving his godson with his herbarium. Von Besser graduated as a doctor from the University of Krakow in 1807, and continued to pursue his interest in b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taraxacum
''Taraxacum'' () is a genus of flowering plants in the family Asteraceae, which consists of species commonly known as dandelions. The scientific and hobby study of the genus is known as taraxacology. The genus has a near-cosmopolitan distribution, absent only from tropical and polar areas. Two of the most common species worldwide, ''Taraxacum officinale, T. officinale'' (the common dandelion) and ''Taraxacum erythrospermum, T. erythrospermum'' (the red-seeded dandelion), are European species introduced into North America, where they are non-native species, non-native. Dandelions thrive in temperate regions and can be found in yards, gardens, sides of roads, among crops, and in many other habitats. Like other members of the family Asteraceae, they have very small flowers collected together into a composite head (botany), flower head. Each single flower in a head is called a ''floret''. In part due to their abundance, along with being a generalist species, dandelions a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Introduced Species
An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there by human activity, directly or indirectly, and either deliberately or accidentally. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are considered naturalized. The process of human-caused introduction is distinguished from biological colonization, in which species spread to new areas through "natural" (non-human) means such as storms and rafting. The Latin expression neobiota captures the characteristic that these species are ''new'' biota to their environment in terms of established biological network (e.g. food web) relationships. Neobiota can further be divided into neozoa (also: neozoons, sing. neozoon, i.e. animals) and ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variety (botany)
In botanical nomenclature, variety (abbreviated var.; in ) is a taxonomic rank below that of species and subspecies, but above that of form. As such, it gets a three-part infraspecific name. It is sometimes recommended that the subspecies rank should be used to recognize geographic distinctiveness, whereas the variety rank is appropriate if the taxon is seen throughout the geographic range of the species. Example The pincushion cactus, ''Escobaria vivipara'', is a wide-ranging variable species occurring from Canada to Mexico, and found throughout New Mexico below about . Nine varieties have been described. Where the varieties of the pincushion cactus meet, they intergrade. The variety ''Escobaria vivipara'' var. ''arizonica'' is from Arizona, while ''Escobaria vivipara'' var. ''neo-mexicana'' is from New Mexico. Definitions The term is defined in different ways by different authors. However, the International Code of Nomenclature for Cultivated Plants, while recognizing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taraxacum Laevigatum
''Taraxacum laevigatum'', the rock dandelion or red-seeded dandelion, is a species of dandelion that grows in Europe, including Great Britain. Rarely, ''Taraxacum laevigatum'' can be found in the northern parts of North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri .... References laevigatum Plants described in 1813 Taxa named by Augustin Pyramus de Candolle Invasive plant species in Japan {{Cichorieae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taraxacum Officinale
''Taraxacum officinale'', the dandelion or common dandelion, is a herbaceous perennial flowering plant in the daisy family, Asteraceae. The common dandelion is well known for its yellow flower heads that turn into round balls of many silver-tufted fruit that disperse in the wind. These balls are called "clocks" in both British and American English. The name "blowball" is also used. The common dandelion grows in temperate regions of the world in areas with moist soils. They are very hardy plants, able to grow in a variety of environments, and are tolerant of crowding, extremes of temperature, and low moisture. As a result of this hardiness, in addition to its ability to rapidly propagate itself, the dandelion has become established over a wide range via human activity, originally being native to Eurasia, but can also be found across the Americas, southern Africa, India, Australia and New Zealand as a result of incidental or deliberate introductions. It is often considered a we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf
A leaf (: leaves) is a principal appendage of the plant stem, stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the Shoot (botany), shoot system. In most leaves, the primary Photosynthesis, photosynthetic Tissue (biology), 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. The leaf is an integral part of the stem system, and most leaves are flattened and have distinct upper (Glossary of botanical terms#adaxial, adaxial) and lower (Glossary of botanical terms#abaxial, abaxial) surfaces that differ in color, Trichome, hairiness, the number of stomata (pores that intake and output gases), the amount and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lobed Leaf
The following terms are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflets). The edge of the leaf may be regular or irregular, and may be smooth or have 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 "ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basal Leaves
A leaf (: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally above ground 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. The leaf is an integral part of the stem system, and 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 which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonchus Oleraceus
''Sonchus oleraceus'' is a species of flowering plant in the tribe Cichorieae of the family Asteraceae, native species, native to Europe and Western Asia. It has many common names including common sowthistle, sow thistle, smooth sow thistle, annual sow thistle, puha (in New Zealand English, from Māori language, Māori ''pūhā''), hare's colwort, hare's thistle, milky tassel, milk thistle, and soft thistle. Its Binomial nomenclature, specific epithet means "vegetable/herbal". The common name 'sow thistle' refers to its attractiveness to pigs, and the similarity of the leaf to younger thistle plants. The common name 'hare's thistle' refers to its purported beneficial effects on hare and rabbits. Botanical characteristics This annual plant has a hollow, upright stem up to high. It prefers full sun, and can tolerate most soil conditions. The flowers are hermaphroditic flower, hermaphroditic, and common pollinators include bees and flies. It spreads by seeds being carried by wind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Northern America
Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring ( indigenous) native plants. The corresponding term for animals is ''fauna'', and for fungi, it is '' funga''. Sometimes bacteria and fungi are also referred to as flora as in the terms ''gut flora'' or ''skin flora'' for purposes of specificity. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
