Ephedra monosperma

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Ephedra monosperma
Ephedra minima.jpg
Matured red and fleshy cones of E. monosperma
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
(unranked): Gymnospermae
Division: Gnetophyta
Class: Gnetopsida
Order: Ephedrales
Family: Ephedraceae
Genus: Ephedra
Species:
E. monosperma
Binomial name
Ephedra monosperma
Synonyms
  • Ephedra minimaK.S. Hao

Ephedra monosperma, also called Ephedra minima or dan zi ma huang (in Chinese), is small shrub in the family of Ephedraceae.

Contents

It is distributed from China to Siberia and found growing in rocky slopes or dry places. [2] Its ephedrine extract has been used in traditional medicine in China and Japan, but is banned in USA since 1994 for causing various adverse effects. [3]

Description

Ephedra monosperma is perennial [4] small shrub that ranges 5 cm to 15 cm high, often with creeping runners. The woody stems are much branched and short, 1–5 cm, and have knotted nodes. Branchlets are spreading and slim usually with slight curved shape. Internodes of branchlets are 1–3 cm long, 1 mm in diameter.

The leaves are opposite, basal 1/3–2/3 connate their length. There is one ovule in each cone that is enclosed by two pairs of cone bracts. [5] Pollen cones, consist of three or four pairs of decussate scales with broad margin, are oblong-spherical shaped, sessile or subsessile at nodes and paired or rarely solitary. [4] [6]

Bracts of pollen cones are in two to four pairs, 1/2 connate their length. It pollinates in June, has matured seeds in August, [2] and flowers from May. [4] Seed cones are solitary or opposite at nodes, sessile, and ovoid at maturity. [2] The mature cones are fleshy, red, and glucose, 6–9 mm long, 5–8 mm across. [6]

Habitat and distribution

Ephedra monosperma is found growing in crevices of limestone, cliffs, and rocky slopes, sometimes on the rocks on slope of river valleys often with sparse Juniperus and shrub vegetation. It is also often found in dry pine forests. [4]

E. monosperma is mainly distributed in these Asian locations: Afghanistan, China (Beijing, Chongqing, Gansu, Guizhou, Hebei, Hubei, Nei Monggol, Ningxia, Qinghai, Shandong, Shanxi, Sichuan, Tianjin, Xinjiang, and Yunnan [4] ) Tibet, Kazakhstan, Mongolia, Pakistan, and Russia (Buryatiya, Chita, Irkutsk, Krasnoyarsk, Tuva, and Yakutiya [4] ). [2]

Uses

Medicine

Ephedrae herbs which includes Ephedra monosperma has been used in Chinese and Japanese medicine for several thousand years. [3] The pharmacological effect of Ephedra medicine is in wide range: increase in heart rate and elevation of blood pressure against heart block or postural hypotension, constriction of peripheral blood vessels, bronchodilation against bronchial asthma, CNS stimulation against narcolepsy or depression, and urine retention against urinary incontinence. [7]

The pure alkaloid ephedrine from the Ephedra herbs is popular for effective medicine for asthma, especially because it can be given by mouth unlike adrenaline. [8]

It has been recently[ when? ] used in street drug and nutritional supplements using methamphetamine extracted from Asian Ephedra. [9] However, ephedrine products are now banned in U.S.A since 1994 for causing various and serious adverse effects, such as headache, insomnia, stroke, arrhythmias, myocardial infarction, psychosis, heart palpitations, cardiac arrest and even death. [3]

Tea

To make Mongolia tea, dried mature seed-cones of Ephedra monosperma are mixed with white tea or herbs, taken with or without cream and milk. [6]

Related Research Articles

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Leucospermum praemorsum is an evergreen shrub or small tree of up to 5 m (16 ft) high. It has hairless oblong to inverted lance-shaped leaves of 7–8 cm long and 1½–2 cm wide, tapering at their base to a stalk of up to 2 cm long, and cut-off at the tip with three to five teeth, and pale carmine, inverted cone-shaped flower heads. From the center of the flowers emerge long initially orange, later deep crimson styles that jointly give the impression of a pincushion. It is called Nardouw fountain-pincushion or Nardouw pincushion in English and Nardouwluisiesbos in Afrikaans. Flower heads can be found off and on throughout the year, particularly in older plants, with a peak between July and December. It is an endemic species that can only be found in part of the Western Cape province of South Africa.

<i>Leucospermum tottum</i> Shrub in the family Proteaceae from the Western Cape of South Africa

Leucospermum tottum is an upright, evergreen shrub of up to 1½ m high and 2 m (6 ft) in diameter from the Proteaceae. The oblong, mostly entire leaves with a bony tip are somewhat spreading and distant from each other, and so exposing the stem. It is called elegant pincushion or ribbon pincushion in English, and oranje-rooi speldekussing or vuurhoutjies in Afrikaans. Flowers can be found between September and January. The species naturally occurs in the Western Cape province of South Africa. Two different varieties are distinguished, which are genetically very close, but differ in the color, orientation and tube-length of the flowers, the volume and sugar content of the nectar. This is probably an adaptation to different pollinators.

References

  1. A. Bell & S. Bachman (2011). "Ephedra monosperma". The IUCN Red List of Threatened Species . IUCN. 2011: e.T201704A9169447. doi:10.2305/IUCN.UK.2011-2.RLTS.T201704A9169447.en . Retrieved 14 January 2018.
  2. 1 2 3 4 Flora of China Editorial Committee. 1999. Flora of China, Volume 4: 1–453. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis.
  3. 1 2 3 Kitani, Yuki, Shu Zhu, Takayuki Omote, Ken Tanaka, Javzan Batkhuu, Chinbat Sanchir, Hirotoshi Fushimi, Masayuki Mikage, and Katsuko Komatsu. "Molecular Analysis and Chemical Evaluation of Ephedra Plants in Mongolia." Biological & Pharmaceutical Bulletin 32.7 (2009): 1235-243.
  4. 1 2 3 4 5 6 Bachman, Steven. "Species Summary- Ephedra Monosperma." Sampled Red List Index for Plants. 12 Apr. 2011.
  5. Rydin, Catarina, Anbar Khodabandeh, and Peter K. Endress. "The Female Reproductive Unit of Ephedra (Gnetales): Comparative Morphology and Evolutionary Perspectives." Botanical Journal of the Linnean Society 163.4 (2010): 409-10.
  6. 1 2 3 Hu, Shiu-ying. Food Plants of China. Hong Kong: Chinese UP, 2005. pp. 279.
  7. Abourashed E, El-Alfy A, Khan I, Walker L (2003). "Ephedra in perspective--a current review". Phytother Res 17 (7): 703–12.
  8. Lee, M R. "The History of Ephedra (ma-huang)." MEDLINE. The Journal of the Royal College of Physicians of Edinburgh, Mar. 2011. Web. 29 Apr. 2012.
  9. Caveney, S., DA Charlet, and H. Freitag. "American Journal of Botany." New Observations on the Secondary Chemistry of World Ephedra (Ephedraceae). American Journal of Botany, July 2001.