NGU TRAO
Latin Name: Vitex
negundo L. var. cannabifolia (Sieb. et Zucc.) Hand. -Mazz. Family (Verbenaceae)
English Name: Hempleaf
Negundo Chastetree, Chastetree.
Description: Machaka
or dungarunga; branchlet 4 angled. Leaf opposite, palmately compound leaf,
leaflets 5, rarely 3; aphlebia lanceolate or elliptical lanceolate, tip
gradually pointed, basal part wedge shaped, margin with thick sawtooth, surface
green, backface light green, generally covered with soft hairs. Panicle
basidixed, 10-20cm long; corolla light purple, fruit nearly spherical, black.
Flowering: June to July; fruiting: August to November.
Vitex negundo L. var. cannabifolia (Sieb. et Zucc.) Hand. -Mazz. Family (Verbenaceae)
Distribution: Growing
on hill-slopes, roadsides and in thickets. Distributed in Vietnam
Part Used: Medical
part: fresh leaves. Chinese name: Mujingye.
Harvest &
Processing: Collected in summer and autumn when leaves flourishing, removed
stem branches.
Chemistry: Mainly
contains essential oils: β-caryophyllene and sabinene andmyrcene, etc.
Pharmacology: Phlegm-eliminating,
antitussive, pant-calming, blood-pressure-lowering, serum-protein-adjusting,
sedative, hypnotic and anti-bacterial; toxic.
Properties &
Actions: Little bitter, pungent, neutral. Dispelling phlegm, suppressing
cough and calming panting.
Indications &
Usage: Dyspnea with cough, chronic bronchitis. Oral administration:
decocting 9-15g, fresh products up to 30-60g; or extracted juice to drink by
pounding. External application: appropriate amount, smashed for applying; or
decocted for fumigating and washing.
Examples:
1. Treat common cold
due to wind coldness: fresh hempleaf negundo chastetree leaves 24g, or add
fresh common perilla leaves 12g. Decoct in water and swallow.
2. Prevent sunstroke:
dried tender leaves of hempleaf negundo chastetree 6-9g. Decoct in water and
drink as tea.
3. Treat acute
gastroenteritis: fresh stem leaves of hempleaf negundo chastetree 30-60g.
Decoct in water and swallow.
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