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Asarum Bashanense
''Asarum'' is a genus of plants in the birthwort family Aristolochiaceae, commonly known as wild ginger. ''Asarum'' is from Greek ἄσαρον, a name for '' Asarum europaeum''. Description ''Asarum'' is a genus of low-growing herbs distributed across the temperate zones of the Northern Hemisphere, with most species in East Asia (China, Japan, and Vietnam) and North America, and one species in Europe. Biogeographically, ''Asarum'' originated in Asia. They have characteristic kidney-shaped leaves, growing from creeping rhizomes, and bear small, axillary, brown or reddish flowers. The plant is called wild ginger because the rhizomes and leaves taste and smell similar to ginger root, but the two are not particularly related. The FDA warns against consuming ''Asarum'', as it is nephrotoxic and contains the potent carcinogen aristolochic acid. The birthwort family also contains the genus ''Aristolochia'', known for carcinogens. Wild ginger favors moist, shaded sites with humus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asarum Caudatum
''Asarum caudatum'' (British Columbia wild ginger, western wild ginger, or long-tailed wild ginger) is a plant native to rich moist forests of western North America. It has heart-shaped leaves and a three-lobed purplish flower. Description Growing from a long rhizome, the Glossary of leaf morphology#reniform, reniform (kidney/heart-shaped) leaves range from in length. The leaves are found in colonies or clusters as the rhizome spreads, forming mats. The leaves emit a ginger aroma when rubbed. Blooming from April to July (about a month earlier in British Columbia), the flower sits at the end of a leafstalk, often on the ground, hidden by the leaves. The flowers are hirsute (hairy), cup-shaped, and brown-purple to green-yellow, terminating in three, long, gracefully curved lobes. Similar species include ''Asarum hartwegii, A. hartwegii'', ''Asarum lemmonii, A. lemmonii'', and ''Asarum marmoratum, A. marmoratum''. File:Asarum caudatum 1112.JPG, Flowers File:Asarum cau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asarum Europaeum Flower 050403
''Asarum'' is a genus of plants in the birthwort family Aristolochiaceae, commonly known as wild ginger. ''Asarum'' is from Greek ἄσαρον, a name for '' Asarum europaeum''. Description ''Asarum'' is a genus of low-growing herbs distributed across the temperate zones of the Northern Hemisphere, with most species in East Asia (China, Japan, and Vietnam) and North America, and one species in Europe. Biogeographically, ''Asarum'' originated in Asia. They have characteristic kidney-shaped leaves, growing from creeping rhizomes, and bear small, axillary, brown or reddish flowers. The plant is called wild ginger because the rhizomes and leaves taste and smell similar to ginger root, but the two are not particularly related. The FDA warns against consuming ''Asarum'', as it is nephrotoxic and contains the potent carcinogen aristolochic acid. The birthwort family also contains the genus ''Aristolochia'', known for carcinogens. Wild ginger favors moist, shaded sites with humus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asarum Asperum
''Asarum asperum'' is a species of flowering plant in the pipevine family, Aristolochiaceae. It is endemic to Japan, where it is found on Shikoku and in the western regions of Honshu. It is particularly common in the vicinity of Kyoto and Nara. It is a perennial that produces thick evergreen leaves, which are ovate-orbicular and have a subhastate base. It produces ground-level maroon flowers, that are pollinated by insects. The flowering tube is prominently constricted at its apex. It blooms in April. It forms colonies on the forest floor The forest floor, also called detritus or wikt:duff#Noun 2, duff, is the part of a forest ecosystem that mediates between the living, aboveground portion of the forest and the mineral soil, principally composed of dead and decaying plant matter ..., where it often grows co-occurs with '' Ainsliaea cordifolia'', with which it bears a resemblance. File:Asarum asperum2 (cropped).jpg, Detail of flowers References {{Taxonbar, from=Q15545355 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asarum Arifolium
''Asarum'' is a genus of plants in the birthwort family Aristolochiaceae, commonly known as wild ginger. ''Asarum'' is from Greek wikt:ἄσαρον, ἄσαρον, a name for ''Asarum europaeum''. Description ''Asarum'' is a genus of low-growing herbs distributed across the temperate zones of the Northern Hemisphere, with most species in East Asia (China, Japan, and Vietnam) and North America, and one species in Europe. Biogeographically, ''Asarum'' originated in Asia. They have characteristic kidney-shaped leaves, growing from creeping rhizomes, and bear small, wikt:axil, axillary, brown or reddish flowers. The plant is called wild ginger because the rhizomes and leaves taste and smell similar to ginger root, but the two are not particularly related. The FDA warns against consuming ''Asarum'', as it is nephrotoxic and contains the potent carcinogen aristolochic acid. The birthwort family also contains the genus ''Aristolochia'', known for carcinogens. Wild ginger favors m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asarum Marmoratum
''Asarum marmoratum'' is a species of wild ginger known by the common name marbled wild ginger. It is native to the Klamath Mountains of northern California and southern Oregon, as well as adjacent slopes of the Cascade Range. It is a plant of moist high-elevation forests and rocky mountainsides. This is a rhizomatous perennial herb with hairy green leaves with bright cream-white colored marbling. The leaves are heart-shaped to kidney-shaped to nearly round. Flowers appear at ground-level. They consist of three coarsely hairy sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 Etymology The term ''sepalum'' ...s which are dark greenish brown outside and dark reddish inside. The fruit is a fleshy capsule containing many seeds. ''Asarum marmoratum'' is a state-listed endangered species in Oregon. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synapomorphy
In phylogenetics, an apomorphy (or derived trait) is a novel Phenotypic trait, character or character state that has evolution, evolved from its ancestral form (or Plesiomorphy and symplesiomorphy, plesiomorphy). A synapomorphy is an apomorphy shared by two or more taxon, taxa and is therefore Hypothesis#Scientific hypothesis, hypothesized to have evolved in their most recent common ancestor. ) In cladistics, synapomorphy implies Homology (biology), homology. Examples of apomorphy are the presence of Terrestrial locomotion#Posture, erect gait, fur, Evolution of mammalian auditory ossicles, the evolution of three middle ear bones, and mammary glands in mammals but not in other vertebrate animals such as amphibians or reptiles, which have retained their ancestral traits of a Terrestrial locomotion#Posture, sprawling gait and lack of fur. Thus, these derived traits are also synapomorphies of mammals in general as they are not shared by other vertebrate animals. Etymology The word ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraphyletic
Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In contrast, a monophyletic grouping (a clade) includes a common ancestor and ''all'' of its descendants. The terms are commonly used in phylogenetics (a subfield of biology) and in the tree model of historical linguistics. Paraphyletic groups are identified by a combination of synapomorphies and symplesiomorphies. If many subgroups are missing from the named group, it is said to be polyparaphyletic. The term received currency during the debates of the 1960s and 1970s accompanying the rise of cladistics, having been coined by zoologist Willi Hennig to apply to well-known taxa like Reptilia (reptiles), which is paraphyletic with respect to birds. Reptilia contains the last common ancestor of reptiles and all descendants of that ancestor exc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyletic
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent common ancestor (or more precisely an ancestral population), i.e. excludes non-descendants of that common ancestor # the grouping contains all the descendants of that common ancestor, without exception Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic'' grouping meets 1. but not 2., thus consisting of the descendants of a common ancestor, excepting one or more monophyletic subgroups. A '' polyphyletic'' grouping meets neither criterion, and instead serves to characterize convergent relationships of biological features rather than genetic relationships – for example, night-active primates, fruit trees, or aquatic insects. As such, these characteristic features of a polyphyletic grouping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ribosomal DNA
The ribosomal DNA (rDNA) consists of a group of ribosomal RNA encoding genes and related regulatory elements, and is widespread in similar configuration in all domains of life. The ribosomal DNA encodes the non-coding ribosomal RNA, integral structural elements in the assembly of ribosomes, its importance making it the most abundant section of RNA found in cells of eukaryotes. Additionally, these segments include regulatory sections, such as a promoter specific to the RNA polymerase I, as well as both transcribed and non-transcribed spacer segments. Due to their high importance in the assembly of ribosomes for protein biosynthesis, the rDNA genes are generally highly conserved in molecular evolution. The number of copies can vary considerably per species. Ribosomal DNA is widely used for phylogenetic studies. Structure The ribosomal DNA includes all genes coding for the non-coding structural ribosomal RNA molecules. Across all domains of life, these are the structural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internal Transcribed Spacer
Internal transcribed spacer (ITS) is the spacer DNA situated between the small-subunit ribosomal RNA (rRNA) and large-subunit rRNA genes in the chromosome or the corresponding transcribed region in the polycistronic rRNA precursor transcript. Across life domains In bacteria and archaea, there is a single ITS, located between the 16S and 23S rRNA genes. Conversely, there are two ITSs in eukaryotes: ITS1 is located between 18S and 5.8S rRNA genes, while ITS2 is between 5.8S and 28S (in opisthokonts, or 25S in plants) rRNA genes. ITS1 corresponds to the ITS in bacteria and archaea, while ITS2 originated as an insertion that interrupted the ancestral 23S rRNA gene. Organization In bacteria and archaea, the ITS occurs in one to several copies, as do the flanking 16S and 23S genes. When there are multiple copies, these do not occur adjacent to one another. Rather, they occur in discrete locations in the circular chromosome. It is not uncommon in bacteria to carry tRNA ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexastylis
''Asarum'' is a genus of plants in the birthwort family Aristolochiaceae, commonly known as wild ginger. ''Asarum'' is from Greek ἄσαρον, a name for '' Asarum europaeum''. Description ''Asarum'' is a genus of low-growing herbs distributed across the temperate zones of the Northern Hemisphere, with most species in East Asia (China, Japan, and Vietnam) and North America, and one species in Europe. Biogeographically, ''Asarum'' originated in Asia. They have characteristic kidney-shaped leaves, growing from creeping rhizomes, and bear small, axillary, brown or reddish flowers. The plant is called wild ginger because the rhizomes and leaves taste and smell similar to ginger root, but the two are not particularly related. The FDA warns against consuming ''Asarum'', as it is nephrotoxic and contains the potent carcinogen aristolochic acid. The birthwort family also contains the genus ''Aristolochia'', known for carcinogens. Wild ginger favors moist, shaded sites with humus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
