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Tragopogon Mirus
''Tragopogon mirus'', the remarkable goatsbeard, is a plant species considered native to certain regions of North America. Intensive studies over the course of many years have demonstrated that it originated as an allopolyploid hybrid Hybrid may refer to: Science * Hybrid (biology), an offspring resulting from cross-breeding ** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species ** Hybridity, the property of a hybrid plant which is a union of two diff ... between '' T. dubius'' and '' T. porrifolius'', both of which are European species naturalized in the US. ''Tragopogon mirus'' has become established in the wild, reproducing by its own, thus deserving recognition as a species.Ownbey, M. 1950. Natural hybridization and amphiploidy in the genus ''Tragopogon''. American Journal of Botany 37:487-499. ''Tragopogon mirus'' is an herb up to 150 cm (60 inches) tall. Leaves are slightly tomentose when young, nearly glabrous when fully mature. Leaf apice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allopolyploid
Polyploidy is a condition in which the cells of an organism have more than two paired sets of ( homologous) chromosomes. Most species whose cells have nuclei (eukaryotes) are diploid, meaning they have two complete sets of chromosomes, one from each of two parents; each set contains the same number of chromosomes, and the chromosomes are joined in pairs of homologous chromosomes. However, some organisms are polyploid. Polyploidy is especially common in plants. Most eukaryotes have diploid somatic cells, but produce haploid gametes (eggs and sperm) by meiosis. A monoploid has only one set of chromosomes, and the term is usually only applied to cells or organisms that are normally diploid. Males of bees and other Hymenoptera, for example, are monoploid. Unlike animals, plants and multicellular algae have life cycles with two alternating multicellular generations. The gametophyte generation is haploid, and produces gametes by mitosis; the sporophyte generation is diploid and p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different varieties, subspecies, species or genera through sexual reproduction. Generally, it means that each cell has genetic material from two different organisms, whereas an individual where some cells are derived from a different organism is called a chimera. Hybrids are not always intermediates between their parents such as in blending inheritance (a now discredited theory in modern genetics by particulate inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridization, which include genetic and morph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tragopogon Dubius
''Tragopogon dubius'', commonly known as yellow salsify, is a species of salsify with yellow flower heads. It is native to Eurasia and has been introduced to North America. Description Like most salsifies, ''Tragopogon dubius'' grows as an annual or occasionally biennial forb, reaching a height of . The leaves are up to long. The buds are blue-green, tall, and tapered. On display from late spring to late summer, the yellow flower head is wide. The inflorescence opens early in the morning and often closes up by late afternoon. Later, the plant forms a seed head resembling that of dandelions, but distinctly larger. The seeds (known as achenes) are 2–4 cm long but featherweight, weighing about 8 mg each on average. There is some natural variation between the central and peripheral achenes in the seedhead, with the peripheral ones being generally darker and heavier, and having a higher concentration of phenolic compounds; this may enhance their survival potential ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tragopogon Porrifolius
''Tragopogon porrifolius'' is a species of plant. It is commonly known as purple or common salsify, oyster plant, vegetable oyster, Jerusalem star, Jack go to bed, goatsbeard, or simply salsify. These last two names are also applied to other species. It grows wild in many places and is one of the most widely known species of the salsify genus, ''Tragopogon''. It is cultivated for its ornamental flower and edible root. Description The plant grows to in height. As with other ''Tragopogon'' species, its stem is largely unbranched and the leaves are somewhat grasslike, up to long. It exudes a milky juice from the stems. The taproots can become long and thick. It typically flowers from June to September, but in warmer areas such as California it can be found in bloom from April. The flower head is purple and across and each is surrounded by 8–9 tapered bracts which are longer than the petals (technically, the ligules of the ray flowers). The flowers are hermaphrodite, hermap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tragopogon
''Tragopogon'', also known as goatsbeard or salsify, is a genus of flowering plants in the family Asteraceae. It includes the vegetable known as salsify, as well as a number of common wild flowers. Salsifies are forbs growing as biennial or perennial plants. They have a strong taproot and milky sap. They generally have few branches, and those there are tend to be upright. Their leaves are somewhat grass-like. Flower colour varies within the genus, with some yellow species, and some bronze or purple. Seeds are achenes and are borne in a globe like that of a dandelion but larger, and are dispersed by the wind. The salsifies are mostly natives of Europe and Asia, but several species have been introduced into North America and Australia and have spread widely there. There is one species sometimes considered native to North America, '' Tragopogon mirus'', but it is in fact a hybrid of two non-native species. Some of the more common species of ''Tragopogon'' are known, in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Washington (state)
This is a partial list of flora that are Indigenous (ecology), native to the U.S. state of Washington (state), Washington. Plants sorted by family Adoxaceae * ''Sambucus nigra'' ― blue elderberry * ''Sambucus racemosa'' ― red elderberry * ''Viburnum edule'' ― high-bush cranberry * ''Viburnum ellipticum'' ― common viburnum * ''Viburnum opulus'' ― snowball viburnum Asparagaceae * ''Asparagus officinalis'' ― garden asparagus * ''Brodiaea coronaria'' ― bluedick brodiea * ''Camassia quamash'' ― common camas * ''Camassia leichtlinii'' ― large camas * ''Dichelostemma congestum'' ― ookow, northern saitas * ''Maianthemum dilatatum'' ― false lily-of-the-valley * ''Maianthemum racemosum'' ― feathery false lily-of-the-valley * ''Maianthemum stellatum'' ― starry false lily-of-the-valley * ''Muscari armeniacum'' ― garden grape-hyacinth * ''Ornithogalum umbellatum'' ― sleepydick * ''Triteleia grandiflora'' ― blue umber lily * ''Triteleia hyacinthina'' ― whit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Idaho
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] |
Plants Described In 1950
Plants are the eukaryotes that form the kingdom Plantae; they are predominantly photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with cyanobacteria to produce sugars from carbon dioxide and water, using the green pigment chlorophyll. Exceptions are parasitic plants that have lost the genes for chlorophyll and photosynthesis, and obtain their energy from other plants or fungi. Most plants are multicellular, except for some green algae. Historically, as in Aristotle's biology, the plant kingdom encompassed all living things that were not animals, and included algae and fungi. Definitions have narrowed since then; current definitions exclude fungi and some of the algae. By the definition used in this article, plants form the clade Viridiplantae (green plants), which consists of the green algae and the embryophytes or land plants (hornworts, liverworts, mosses, lycophytes, ferns, conifers and other gymnosperm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
