Medicinals

ròu guì / 肉桂 / 肉桂 / cinnamon bark;

Latin pharmacognostic name: Cinnamomi Cortex

Alternate English names: cassia bark; Chinese cinnamon bark

Alternate Chinese names: 杜桂 dù guì; 紫桂 zǐ guì; 大桂 dà guì; 玉桂 yù guì; 辣桂 là guì

Origin: Plant

Use: medicinal

Category: Interior-warming agents

Properties: Acrid, sweet; hot.

Channel entry: kidney, spleen, heart, and liver channels.

Indications:

Dosage & Method:

(1.5–4.5g).

Warning:

Because its hot acrid properties stir the blood and damage yīn, ròu guì is contraindicated in yīn vacuity with effulgent fire, in bleeding due frenetic movement of hot blood, and repletion heat in the interior. It is contraindicated in pregnancy and should not be combined with chì shí zhī (Halloysitum Rubrum) because it ""fears"" it according to traditional theory.

Product Description:

This bark comes in strips 6–40 cm long and 1–3 mm thick and curled into trough or tube shapes. The outside is relatively smooth with inconspicuous lenticels. If the cork has not been stripped off, it is brown in color; if it has been stripped off, it is a dark, reddish-brown. It is hard and breaks into pieces when snapped. A pale line (the stone cell layer) can be observed on the fracture.

Quality:

A strong sweet pungent taste and powerful aroma are signs of good quality.

Product Area:

Guǎngxī, Guǎngdōng, Vietnam, Sri Lanka.

Etymology:

The name ròu guì 肉桂, literally ""fleshy cinnamon,"" reflects the thickness of this bark.

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