Sida cordifolia ('ilima,[1]flannel weed,[2]bala, country mallow or heart-leaf sida) is a perennial subshrub of the mallow family Malvaceae native to India. It has naturalized throughout the world, and is considered an invasive weed in Africa, Australia, the southern United States, Hawaiian Islands, New Guinea, and French Polynesia.[3][4][5] The specific name, cordifolia, refers to the heart-shaped leaf.[4][6]
Species of shrub
This article needs additional citations for verification. (November 2008)
Sida cordifolia is an erect perennial that reaches 50 to 200cm (20 to 79in) tall, with the entire plant covered with soft white felt-like hair that is responsible for one of its common names, "flannel weed". The stems are yellow-green, hairy, long, and slender. The yellow-green leaves are oblong-ovate, covered with hairs, and 3.5 to 7.5cm (1.4 to 3.0in) long by 2.5 to 6cm (0.98 to 2.36in) wide. The flowers are dark yellow, sometimes with a darker orange center, with a hairy 5-lobed calyx and 5-lobed corolla.[4]
As a weed, it invades cultivated and overgrazed fields, competing with more desired species and contaminating hay.[7]
Medicinal use
This section needs more medical references for verification or relies too heavily on primary sources. (September 2014)
in Hyderabad, India.
Sida cordifolia is used in Ayurvedic medicine (Sanskrit:-BALA).[8]
Known as "malva branca", it is a plant used in Brazilian folk medicine for the treatment of inflammation of the oral mucosa, blennorrhea, asthmatic bronchitis and nasal congestion,[9] stomatitis, of asthma and nasal congestion[10] and in many parts of Africa for various ailments, particularly for respiratory problems.[11] It has been investigated as an anti-inflammatory,[12][13] for preventing cell proliferation,[14] and for encouraging liver re-growth.[15] Because of its ephedrine content, it possesses psychostimulant properties, affecting the central nervous system and also the heart.[16]
Sida cordifolia flower
Phytochemistry
The following alkaloids were reported from S. cordifolia growing in India:[17] β-phenethylamine, ephedrine, pseudoephedrine, S-(+)-Nb-methyltryptophan methyl ester, hypaphorine, vasicinone, vasicinol, choline, and betaine.
No tannin or glycosides have been identified from the plant. The roots and stems contain the alkaloid ephedrine, normally observed in the different varieties of the gymnosperm genus Ephedra. Recent analyses have revealed that ephedrine and pseudoephedrine constitute the major alkaloids from the aerial parts of the plant, which also show traces of sitosterol and palmitic, stearic and hexacosanoic acids. Two flavanones—5,7-dihydroxy-3-isoprenyl flavone and 5-hydroxy-3-isoprenyl flavone—and two phytosterols—β-sitosterol and stigmasterol—have been isolated from the plant.[18] The analgesic alkaloid (5′-Hydroxymethyl-1′-(1,2,3,9-tetrahydro-pyrrolo [2,1-b] quinazolin-1-yl)-heptan-1-one) has also been found.[19] Sterculic acid, malvalic acid, and coronaric acid have been isolated from the seed oil, along with other fatty acids.[20]
References
USDA, NRCS (n.d.). "Sida cordifolia". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 12 November 2015.
BSBI List 2007(xls). Botanical Society of Britain and Ireland. Archived from the original(xls) on 2015-06-26. Retrieved 2014-10-17.
William Thomas Parsons; Eric George Cuthbertson (March 2001). Noxious weeds of Australia. Csiro Publishing. pp.511–. ISBN978-0-643-06514-7. Retrieved 18 July 2010.
Adam C. Munhall; Steven W. Johnson (January 2006). "Dopamine-mediated actions of ephedrine in the rat substantia nigra". Brain Research. 1069 (1): 96–103. doi:10.1016/j.brainres.2005.11.044. PMID16386715. S2CID40626692.
Ghosal, S.; Chauhan, R. B. P. S.; Mehta, R. (1975). "Alkaloids of Sidia cordifolia". Phytochemistry. 14 (3): 830–832. doi:10.1016/0031-9422(75)83057-3.
Sutradhar, R.K.; Matior Rahman, A.K.M.; Ahmad, M.; Bachar, S.C.; Saha, A.; Guha, S.K. (2006). "Bioactive alkaloid from Sida cordifolia Linn. with analgesic and anti-inflammatory activities". Iranian Journal of Pharmacology and Therapeutics. 5 (2): 175–178.
Farooqi, J.A.; Ahmad, M. (1985). "Sida cordifolia seed oil a rich source of hydrogen bromide reactive fatty acids". Chemistry & Industry (14): 483–484.
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