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Kingdom: Plant

Origin in unofficial sources: Brassica juncea (L.) Czern. et Coss.*; Sinapis juncea L.*

Use: Alimentary

Properties: Acrid; hot; nontoxic.^✽

Channel entry: Lung channel.✽

Actions and indications: Warms the center and disperses cold; disinhibits qì and sweeps phlegm; frees the channels and the network vessels, disperses swelling. Treats vomiting of food due to stomach cold; pain in the heart [region] and abdomen; lung cold cough; painful impediment (tòng bì); throat impediment (hóu bì); yīn flat-abscesses (yīn jū); cold phlegm; injury from knocks and falls.

Dosage and method: Oral: Decoct (9–15g) or use in pills or powders. Topical: Grind and apply mixed.

Product description: This seed is round, with a diameter of 1–1.6 mm. The seed coat is deep yellow or light brown, some having a red tinge. Under a magnifying glass, the surface has faint reticular markings, and the hilum appears as a distinct spot. When soaked in water this seed swells, allowing the seed coat to be removed to reveal two cotyledons.

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