กวาวเครือ (KWAO KHRUEA) -

ตำรามาตรฐานยาสมุนไพรไทย

Thai Herbal Pharmacopoeia

สำนักยาและวัตถุเสพติด กรมวิทยาศาสตร์การแพทย์ กระทรวงสาธารณสุข

Bureau of Drug and Narcotic, Department of Medical Sciences, Ministry of Public Health

กวาวเครือ (KWAO KHRUEA)

กวาวเครือขาว (KWAO KHRUEA KHAO), หัวกวาวเครือ (HUA KWAO KHRUEA)
Puerariae Mirificae Radix
Pueraria Mirifica Root
Category Estrogen-like effect.

กวาวเครือ (KWAO KHRUEA)
กวาวเครือขาว (KWAO KHRUEA KHAO), หัวกวาวเครือ (HUA KWAO KHRUEA)
Puerariae Mirificae Radix
Pueraria Mirifica Root
Category Estrogen-like effect.
Pueraria Mirifica Root is the dried, peeled tuberous root of Pueraria candollei Graham ex Benth. var. mirifica (Airy Shaw & Suvat.) Niyomdham (P. mirifica Airy Shaw & Suvat.) (Family Leguminosae), Herbarium Specimen Number: DMSC 5364, Crude Drug Number: DMSc 1255.
Constituents Pueraria Mirifica Root contains isoflavones and their glycosides (e.g., daidzein,
genistein, puerarin). It also contains chromenes (e.g., deoxymiroestrol, isomiroestrol,
miroestrol).
Description of the plant (Fig. 1) Woody climber, up to 12 m long; stem twining, glabrous,
branched, ribbed and flaking with age; tuberous root globose to ovoid, 5 to 40 cm in diameter;
bark pale yellow, glabrous, flesh whitish, woody with age. Leaves pinnately trifoliate,
alternate, 12 to 20 cm long; petiole up to 40 cm long, pulvinus at base; stipule attenuate, 2 to
4 mm long; petiolule 1 to 7 cm long, pulvinus at base; terminal leaflet broadly ovate, 15 to 24
cm long, 10 to 20 cm wide, 3-lobed when juvenile; lateral leaflets opposite, obliquely ovate,
10 to 22 cm long, 8 to 18 cm wide, 2(‒3)-lobed when juvenile; apex acuminate, base broadly
ovate or obtuse, margin entire, pubescent, lateral veins 7 to 10 pairs. Inflorescence racemose,
terminal, 20 to 50 cm long. Flower 1 to 1.3 cm long, bluish purple to pale purple; bracteole
triangular to ovate, 1 to 2 mm long, about 1 mm wide, brown pubescent; calyx campanulate,
2 to 6 mm long, 4-lobed, brown pubescent; corolla standard rounded, 0.8 to 1.2 cm wide,
margin inflexed, with yellowish to purplish white blotch; wings lanceolate, 0.8 to 1.2 cm
long, base clawed; keel elliptic, 0.8 to 1.2 cm long, ventrally adnate, apex rounded; stamens
10, monadelphous, 0.9 to 1.5 cm long, white; ovary superior, oblong, 0.5 to 1 cm long,
pubescent, 1-loculed, ovules 7 to 10. Fruit a pod, flattened, oblong, 2 to 6 cm long, 0.6 to 1 cm
wide, acuminate at both ends, tomentose. Seeds 1 to 5, reniform, 2 to 5 mm long, 2 to 4 mm
wide, 1 to 2 mm thick, purplish brown to brown.
Description Odourless; taste, slightly sweetish.
Macroscopical (Fig. 1) Dried sliced tuberous root, without root bark, varied in shape and
size; cut surface, white to pale yellow, and fibrous.
Microscopical (Figs. 2a, 2b) Transverse section of the peeled tuberous root shows cortex
and vascular tissue. Cortex: parenchyma, varied in size and shape, some containing starch
grains and/or some prismatic crystals; layers of thick-walled sclereids. Vascular tissue:
phloem and xylem; anomalous type; outer region, radially arranged; inner region, radially
arranged with some scattered small bundles.
Pueraria Mirifica Root in powder possesses the diagnostic microscopical of the unground
drug. Parenchyma with both simple and compound starch grains can be seen in abundance.
Large bordered-pitted vessels, thick-walled sclereids, and fibres with prismatic sheath may
also be seen.

ตำรามาตรฐานยาสมุนไพรไทย

Thai Herbal Pharmacopoeia

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