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Ephedra sinica (also known as Chinese ephedra or Ma Huang) is a species of Ephedra native to Mongolia, Russia (Buryatiya, Chita, Primorye), and northeastern China (Gansu, Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shanxi).
Plants of the genus Ephedra, including E. sinica and others, were used in traditional medicine for treating headache and respiratory infections, but there is no scientific evidence they are effective or safe for these purposes. [23] Ephedra has also had a role as a precursor in the clandestine manufacture of methamphetamine. [24]
Members of the family typically grow as shrubs and have small, linear leaves that possess parallel veins. The fossil Ephedraceae genera show a range of morphologies transitional between the ancestral lax male and female reproductive structures and the highly compact reproductive structures typical of modern Ephedra .
Gnetophyta (/ n ɛ ˈ t ɒ f ɪ t ə, ˈ n ɛ t oʊ f aɪ t ə /) is a division of plants (alternatively considered the subclass Gnetidae or order Gnetales), grouped within the gymnosperms (which also includes conifers, cycads, and ginkgos), that consists of some 70 species across the three relict genera: Gnetum (family Gnetaceae), Welwitschia (family Welwitschiaceae), and Ephedra (family ...
Ephedra is widely used by athletes as a performance-enhancing drug, [14] despite a lack of evidence that it improves athletic performance. [15] [16] Ephedra may also be used as a precursor in the illicit manufacture of methamphetamine. [17] Ephedra has been used as a weight-loss aid, sometimes in combination with aspirin and caffeine.
Ephedra viridis, known by the common names green Mormon tea, Brigham tea, green ephedra, and Indian tea, is a species of Ephedra. It is indigenous to the Western United States, where it is a member of varied scrub, woodland, desert, and open habitats. It grows at 900–2,300 metres (3,000–7,500 ft) elevations.
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Ephedra nevadensis, commonly known as Nevada ephedra, gray ephedra, Mormon tea and Nevada jointfir, [1] [4] is a species of gymnosperm native to dry areas of western North America. Its range extends west to California and Oregon , east to Texas , and south to Baja California , including areas of the Great Basin , Colorado Plateau and desert ...