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ephedra

ephedra

ephedra Sentence Examples

  • Good pasture grounds are only found near the streams. The soil is dry gravel and clay, upon which bushes of Ephedra, Nitraria and Salsolaceae grow sparsely.

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  • The three existing genera, usually spoken of as members of the Gnetales, differ from one another more than is consistent with their inclusion in a single family; we may therefore better express their diverse characters by regarding them as types of three separate families-0) Ephedroideae, genus Ephedra; (2) Welwitschioideae, genus Welwitschia; (3) Gnetoideae, genus Gnetum.

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  • The genus Ephedra, with its prothallus and archegonia, which are similar to those of other Gymnosperms, may be safely regarded as the most primitive of the Gnetales.

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  • In some species of Ephedra, e.g.

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  • In Ephedra helvetica, as described by Jaccard, no proembryo or suspensor is formed; but the most vigorous fertilized egg, after undergoing several divisions, becomes attached to a tissue, termed the columella, which serves the purpose of a primary suspensor; the columella appears to be formed by the lignification of certain cells in the central region of the embryo-sac. At a later stage some of the cells in the upper (micropylar) end of the embryo divide and undergo considerable elongation, serving the purpose of a secondary suspensor.

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  • The secondary wood of Ephedra consists of tracheids, vessels and parenchyma; the vessels are characterized by their wide lumen and by the large simple or slightly-bordered pits on their oblique end-walls.

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  • In Gnetum Gnemon, as described by Lotsy, a mature embryo-sac contains in the upper part a large central vacuole and a peripheral layer of protoplasm, including several nuclei, which take the place of the archegonia of Ephedra; the lower part of the embryo-sac, separated from the upper by a constriction, is full of parenchyma.

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  • The structure of the wood agrees in the main with that of Ephedra.

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  • (1899); Land, " Ephedra trifurca," Bot.

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  • HORSETAIL (Equisetum), the sole genus of the botanical natural order Equisetaceae, consisting of a group of vascular cryptogamous plants (see Pteridophyta) remarkable for the vegetative structure which resembles in general appearance the genera of flowering plants Casuarina and Ephedra.

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  • Good pasture grounds are only found near the streams. The soil is dry gravel and clay, upon which bushes of Ephedra, Nitraria and Salsolaceae grow sparsely.

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  • The three existing genera, usually spoken of as members of the Gnetales, differ from one another more than is consistent with their inclusion in a single family; we may therefore better express their diverse characters by regarding them as types of three separate families-0) Ephedroideae, genus Ephedra; (2) Welwitschioideae, genus Welwitschia; (3) Gnetoideae, genus Gnetum.

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  • The genus Ephedra, with its prothallus and archegonia, which are similar to those of other Gymnosperms, may be safely regarded as the most primitive of the Gnetales.

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  • In some species of Ephedra, e.g.

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  • In Ephedra helvetica, as described by Jaccard, no proembryo or suspensor is formed; but the most vigorous fertilized egg, after undergoing several divisions, becomes attached to a tissue, termed the columella, which serves the purpose of a primary suspensor; the columella appears to be formed by the lignification of certain cells in the central region of the embryo-sac. At a later stage some of the cells in the upper (micropylar) end of the embryo divide and undergo considerable elongation, serving the purpose of a secondary suspensor.

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  • The secondary wood of Ephedra consists of tracheids, vessels and parenchyma; the vessels are characterized by their wide lumen and by the large simple or slightly-bordered pits on their oblique end-walls.

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  • In Gnetum Gnemon, as described by Lotsy, a mature embryo-sac contains in the upper part a large central vacuole and a peripheral layer of protoplasm, including several nuclei, which take the place of the archegonia of Ephedra; the lower part of the embryo-sac, separated from the upper by a constriction, is full of parenchyma.

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  • The structure of the wood agrees in the main with that of Ephedra.

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  • (1899); Land, " Ephedra trifurca," Bot.

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  • Certain herbs such as lobelia, ephedra and others with strong side effects are restricted to licensed, trained herbalists only.

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  • Shrubby Horsetail (Ephedra) - Curious greyish, wiry, trailing bushes of S.

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  • The herbs most frequently mentioned in these case reports are aconite, ephedra, and licorice.

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  • Because ephedra can cause severe cardiac side effects, the Food and Drug Administration has issued warnings against its use.

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  • Ephedra, also known as Ma-huang, grows mostly in Asia.

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  • Synephrine works like ephedra as a stimulant and should be used with caution.

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  • Ephedra has been banned in the United States due to its dangerous effect on blood pressure and heart rate.

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  • Bitter orange behaves similar to ephedra and should be used with caution.

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  • Ephedra was taken off the market a few years ago due to several deaths associated with its use.

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  • Some herbs can have serious side effects and should be avoided all together, such as ephedra and fen-phen products, which can significantly increase blood pressure, heart rate, and overall stimulation of central nervous system.

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  • There have been two known deaths directly related to the use of ephedra.

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  • Even so-called natural herbal stimulant compounds, such as banned ephedra diet pills, can cause severe and even life-threatening side effects.

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  • The natural herb ephedra has caused a fair bit of controversy.

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  • Despite the media outcry, newer studies have shown ephedra to be safe for healthy people in moderation, and as long as recommended dosages are followed, ephedra can be a great weight loss tool.

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  • Many of those struggling with obesity, who have been studied, could eat whatever they wanted, exercise a moderate amount and still lose weight while taking ephedra.

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  • It works by stimulating your body's motivation to burn more fat, and works with caffeine much like ephedra.

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  • However, other supplements can be dangerous, such as ephedra, which has been linked to raised heartbeats.

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  • Back in the late 1990's the ingredient ephedra was common in OTC diet pills and the side effect proved potentially fatal.

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  • The FDA confirmed that ephedra use raised blood pressure and otherwise stressed the circulatory system long before it was pulled from the shelves.

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  • It all took time, and in the meantime people bought and used OTC products containing ephedra.

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  • Just as the OTC weight loss supplements were affected by ephedra being removed from market shelves, prescription diet pills underwent similar backlashes when fen-phen was pulled.

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  • The FDA now bans supplements containing ephedra and other harmful substances.

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  • However, certain alkaloids present in the herb work similarly to the ephedrine found in ephedra, making some individuals doubt its safety.

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