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Roseroot
''Rhodiola rosea'' (commonly golden root, rose root, roseroot, Aaron's rod, Arctic root, king's crown, ''lignum rhodium'', orpin rose) is a perennial flowering plant in the family Crassulaceae. It grows naturally in wild Arctic regions of Europe (including Britain), Asia, and North America ( N.B., Nfld. and Labrador, N.S., QC.; Alaska, Maine, N.Y., N.C., Pa., Vt), and can be propagated as a groundcover. Although ''Rhodiola rosea'' has been used in traditional medicine, there is no high-quality clinical evidence of its effectiveness to treat any disease. The United States Food and Drug Administration has issued several warnings to manufacturers of ''R. rosea'' dietary supplements for making false health claims about its safety and efficacy. The plant is threatened in many countries due to rapidly growing demand. Supply comes mostly from wild harvesting on an industrial scale, and a combination of growing scarcity and a lack of regulation has led to environmental degradation, su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodiola Rosea In Flower
''Rhodiola'' is a genus of perennial plants in the family Crassulaceae that resemble ''Sedum'' and other members of the family. Like sedums, ''Rhodiola'' species are often called stonecrops. Some authors merge ''Rhodiola'' into ''Sedum''. ''Rhodiola'' species grow in high-altitude and other cold regions of the Northern Hemisphere. ''Den virtuella floran'' gives the number of species as 36, the Angiosperm Phylogeny Website gives it as 90, and the ''Flora of China'' gives it as about 90, with 55 in China and 16 endemic there. ''Flora of North America'' lists only three species in the United States and Canada. Description Among the distinguishing characters of the genus are two series of stamens totaling twice the number of petals; free or nearly free petals (not joined in a tube); a stout rhizome from whose axils the flowering stems rise; and a basal rosette of leaves. This genus contains the only species of Crassulaceae that have unisexual flowers. Phytochemistry R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodiola Integrifolia
''Rhodiola integrifolia'' is a species of flowering plant in the stonecrop family known by the common names ledge stonecrop, western roseroot, and king's crown. It is native to north-easternmost Russia, including Kamchatka, and western North America, where it grows in mountainous habitat in subalpine and alpine climates, including meadows, cliffs, and talus. It is a perennial herb producing a stout stem from a fleshy, branching caudex, reaching a maximum height near 30 centimeters. The fleshy leaves are alternately arranged on the stem, widely lance-shaped to oval and pointed, flat but upcurved toward the tip, reaching 2.5 centimeters long. They are green when new and age to orange, rose, or red. The inflorescence is a dense cyme of up to 50 flowers with fleshy petals in shades of bright red to deep purple. The fruits are red, rounded ovals with pointed tips. There are several subspecies of this plant, with one, ssp. ''leedyi'', very rare and limited to a few populations in Min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodiola Rosea A6
''Rhodiola'' is a genus of perennial plants in the family Crassulaceae that resemble ''Sedum'' and other members of the family. Like sedums, ''Rhodiola'' species are often called stonecrops. Some authors merge ''Rhodiola'' into ''Sedum''. ''Rhodiola'' species grow in high-altitude and other cold regions of the Northern Hemisphere. ''Den virtuella floran'' gives the number of species as 36, the Angiosperm Phylogeny Website gives it as 90, and the ''Flora of China'' gives it as about 90, with 55 in China and 16 endemic there. ''Flora of North America'' lists only three species in the United States and Canada. Description Among the distinguishing characters of the genus are two series of stamens totaling twice the number of petals; free or nearly free petals (not joined in a tube); a stout rhizome from whose axils the flowering stems rise; and a basal rosette of leaves. This genus contains the only species of Crassulaceae that have unisexual flowers. Phytochemistry R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodiola Rosea Perennial
''Rhodiola'' is a genus of perennial plants in the family Crassulaceae that resemble ''Sedum'' and other members of the family. Like sedums, ''Rhodiola'' species are often called stonecrops. Some authors merge ''Rhodiola'' into ''Sedum''. ''Rhodiola'' species grow in high-altitude and other cold regions of the Northern Hemisphere. ''Den virtuella floran'' gives the number of species as 36, the Angiosperm Phylogeny Website gives it as 90, and the ''Flora of China'' gives it as about 90, with 55 in China and 16 endemic there. ''Flora of North America'' lists only three species in the United States and Canada. Description Among the distinguishing characters of the genus are two series of stamens totaling twice the number of petals; free or nearly free petals (not joined in a tube); a stout rhizome from whose axils the flowering stems rise; and a basal rosette of leaves. This genus contains the only species of Crassulaceae that have unisexual flowers. Phytochemistry R ... [...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] |
Organic Acid
An organic acid is an organic compound with acidic properties. The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group –COOH. Sulfonic acids, containing the group –SO2OH, are relatively stronger acids. Alcohols, with –OH, can act as acids but they are usually very weak. The relative stability of the conjugate base of the acid determines its acidity. Other groups can lsoconfer acidity, usually weakly: the thiol group –SH, the enol group, and the phenol group. In biological systems, organic compounds containing these groups are generally referred to as organic acids. A few common examples include: * lactic acid * acetic acid * formic acid * citric acid * oxalic acid * uric acid * malic acid * tartaric acid Characteristics In general, organic acids are weak acids and do not dissociate completely in water, whereas the strong mineral acids do. Lower molecular mass organic acids such as formic and lactic ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosarin
Rosarin is a cinnamyl alcohol glycoside isolated from ''Rhodiola rosea ''Rhodiola rosea'' (commonly golden root, rose root, roseroot, Aaron's rod, Arctic root, king's crown, ''lignum rhodium'', orpin rose) is a perennial flowering plant in the family Crassulaceae. It grows naturally in wild Arctic regions of Europe ...''. References External links Purification of Phenylalkanoids and monoterpene glycosides from Rhodiola rosea L. roots by high-speed counter-current chromatography Phenylpropanoid glycosides {{organic-chem-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosin (chemical)
Rosin is a glycoside ester of Cinnamyl alcohol and a constituent of ''Rhodiola rosea''. Related compounds The three cinnamyl alcohol-vicianosides of rhodiola rosea commonly referred to as "rosavins" are rosin and the structurally related disaccharide Rosavin which is the arabinose ester of rosin, and Rosarin, the arabinofuranose ester of rosin. Salidroside Salidroside (rhodioloside) is a glucoside of tyrosol found in the plant ''Rhodiola rosea''. It has been studied, along with rosavin, as one of the potential compounds responsible for the putative antidepressant and anxiolytic actions of this pla ..., common in rhodiola spp. and occurring in Rhodiola rosea is not a cinnamyl alcohol glycoside, but a glycoside of tyrosol.http://jultika.oulu.fi/files/isbn9514280806.pdf Sources The cinnamyl alcohol glycosides rosin, rosavin and rosarin occur in the context of rhodiola species, only in Rhodiola rosea. References Crassulaceae Neuroprotective agents Phenylpropanoid glycoside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosavin
Rosavin (also known as rosin, rosavin, and rosarin) are a family of cinnamyl mono- and diglycosides that are key ingredients of ''Rhodiola rosea'' L., (''R. rosea''). ''R. rosea'' is an important medicinal plant commonly used throughout Europe, Asia, and North America, that has been recognized as a botanical adaptogen by the European Medicines Agency. Rosavin production is specific to ''R. rosea'' and ''R. sachalinenis'', and the biosynthesis of these glycosides occurs spontaneously in ''Rhodiola'' roots and rhizomes. The production of rosavins increases in plants as they get older, and the amount of the cinnamyl alcohol glycosides depends on the place of origin of the plant. Biosynthesis Cinnamyl alcohol glycosides are products of phenylpropanoid metabolism, derived from phenylalanine, which is produced from the shikimic-chorismic acid pathway. Shikimic acid is made from the precursor compounds erythrose-4-phosphate, and phosphoenolpyruvate. Shikimic acid is then converted to c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenols
In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of one or more hydroxyl groups (— O H) bonded directly to an aromatic hydrocarbon group. The simplest is phenol, . Phenolic compounds are classified as simple phenols or polyphenols based on the number of phenol units in the molecule. Phenols are both synthesized industrially and produced by plants and microorganisms. Properties Acidity Phenols are more acidic than typical alcohols. The acidity of the hydroxyl group in phenols is commonly intermediate between that of aliphatic alcohols and carboxylic acids (their pKa is usually between 10 and 12). Deprotonation of a phenol forms a corresponding negative phenolate ion or phenoxide ion, and the corresponding salts are called phenolates or phenoxides (aryloxides according to the IUPAC Gold Book). Condensation with aldehydes and ketones Phenols are susceptible to Electrophilic aromatic substitutions. Condensation with formald ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Compound
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound. A compound can be transformed into a different substance by a chemical reaction, which may involve interactions with other substances. In this process, bonds between atoms may be broken and/or new bonds formed. There are four major types of compounds, distinguished by how the constituent atoms are bonded together. Molecular compounds are held together by covalent bonds; ionic compounds are held together by ionic bonds; intermetallic compounds are held together by metallic bonds; coordination complexes are held together by coordinate covalent bonds. Non-stoichiometric compounds form a disputed marginal case. A chemical formula specifies the number of atoms of each element in a compound molecule, using the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodiola Rhodantha
''Rhodiola rhodantha'', common name redpod stonecrop or queen's crown, is a perennial flowering plant in the family Crassulaceae The Crassulaceae (from Latin ''crassus'', thick), also known as the stonecrop family or the orpine family, are a diverse family of dicotyledon flowering plants characterized by succulent leaves and a unique form of photosynthesis, known as Crass .... Distribution This species is present in the United States (Arizona, Colorado, Montana, New Mexico, Utah, and Wyoming). It is native to the Rocky Mountains, at an elevation up to above sea level. Description ''Rhodiola rhodantha'' can reach a height of about . These plants have small, lanceolate and succulent leaves without petiole. They are green at the bottom of the plant whereas at the top they are reddish. The flowers are hermaphrodite, may be rose or reddish and form an inflorescence. They bloom from July to August and the seeds ripen from August to September. References External links ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
