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Allium cepa L.
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English Name |
Onion, Garder Onion, Common Onion |
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Latin name |
Allium cepa L. |
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Family & Genus |
Liliaceae, Allium |
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Description |
Perennial herbs. Has strong odour. Bulb large, spherical, wrapped by red involucra, leaves cylindrical, hollow, 25-50cm long, diameter 1-1.5cm; green, with white powder. Scapes up to 1cm, cylindrical, hollow; umbels spherical, numerous flowers, dense. Peduncles long; flowers stellate expanded, green-white, tepals 6, oblong; filaments longer than perianths, inner layer whorled base extremely expanded, outer layer whorled basiconic. Capsules, chambers cracked at the back, with numerous seeds. Seeds black, flat. Flowering: June to July. |
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Distribution |
Cultivated nationwide. Distributed in West Asia and etc. The medicinal materials are mainly produced in South-central China. |
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Part Used |
Bulb. |
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Harvest & Processing |
Excavated in June. Well washed and sun-dried. Flechtened and stored when leaves are almost dried. |
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Chemistry |
Mainly contains sulfur compounds. |
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Pharmacology |
Detoxifying, parasite-expelling and blood-fat-lowering. |
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Properties & Actions |
Pungent, sweet, warm.Tonifying the stomach and regulating qi-flowing, detoxicating and destroying parasites. |
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Indications & Usage |
The fresh herb is ground into a pulpy preparation, treating wounds, ulcers and trichomonal vaginitis.Oral administration: 30-120g. External application: appropriate amount. |
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Examples |
Trichomonas vaginitis: fresh onion and celery of equal amounts. Mash into mud, take juice, add vinegar, and dip some to plug into vagina before sleeping, and pick out in the next morning. |
| Link to |
 Phytochemical Image Database
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Permanent URL：https://sys01.lib.hkbu.edu.hk/cmed/mpid/detail.php?herb_id=D00380 |
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