Dayflower herb (YA ZHI CAO)-Commelina communis-Herba Commelinae

Dayflower herb (YA ZHI CAO)

Commelina communis L. (Fam. Commelinaceae)

Pharmaceutical Name:

Herba Commelinae

Botanical Name:

Commelina communis L. (Fam. Commelinaceae)

Common Name:

Dayflower herb

Part Used:

Dried aerial part

Herba Commelinae is grown in every part of China, and collected in summer and autumn.

Properties  Taste & Meridians:

Sweet and bitter in flavor, cold in property, acts on the Lung, Stomach, and Bladder channels.

Functions:

Clears Heat and toxins, promotes diuresis.

Indications & Combinations:

1. For Exterior syndromes with fever, it is used with Menthae Arvensis (Bo He) and Fructus Arctii (Niu Bang Zi). For epidemic febrile diseases with pathogenic factors in the Qi system, it is used with Gypsum Fibrosum (Shi Gao) and Rhizoma Anemarrhenae (Zhi Mu).

2. For acute urinary infection with painful, difficult urination, it is used alone or with Herba Plantaginis (Che Qian Cao) and Herba Lophatheri Gracilis (Dan Zhu Ye).

3. For sore throat, it is used with Folium Isatidis (Da Qing Ye) and Radix Isatidis (Ban Lan Gen).

4. For carbuncles and boils, it is used with Herba Violae (Zi Hua Di Ding) and Flos Chrysanthemi Indici (Ye Ju Hua).

Dosage and administration:

15–30 g, for external use.

Precautions:

None noted.

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