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Family Polygonaceae
Kangitngit
Persicaria perfoliata L.
DEVIL'S TAIL

Other scientific names Common names
Persicaria perfoliata L. Kangingit (Ig.)
Polygonum perfoliatum L. Mile-a-minute vine (Engl.)
  Devil's tail (Engl.)
 

Asiatic tearthumb (Engl.)



Mile-a-minute vine is a common name shared by (1) Kangitngit, Persicaria perfoliata, devil's tail, and (2) Morning glory, Ipomoea cairica

Image

Botany:
· Perennial twining herb. Stem angled, red-violet in color with hooked spines.
· Leaves: alternate, deltoid, 3 to 10 cm long; petiole peltately attached.
· Flowers: corolla lobes 5, white or bluish-violet in color, oblong, gradually enlarging during fruiting time. Stamens 8. Inflorescence few-flowered, blooming during summer, borne on the upper part of the leaf axils.
· Fruits: achenes, almost globose, 3 mm in diameter, black when ripe, shiny. The entire infructescence enclosing the fleshy calyx.

Distribution
Sprawling over thickets in ravinesIn high altitude areas throughout the Philippines, 1,300 to 1,600 m. - the Mountain province, Benguet, Ifugao in Luzon and Budkidnon in Mindanao.

In some countries, considered an invasive weed specie with "pest-status" that threatens forest regeneration. (Link)

Parts utilized:
· Entire plant.
· Collect from May to October.
· Rinse, sun-dry.

Properties
Acidic tasting, cooling natured, antifebrile, carminative, anti-infective, anti-dermatosis.
Depurative , diuretic.

Constituents
· Study yielded five diferuloyl esters of sucrose, with vanicoside A and B.
· Study yielded four neoflavonoids.

Uses
Folkloric
· Used for colds and fever, enteritis-diarrhea, infected wounds, and snakebites.
· Used for hematuria.
· Decoction: Use15 to 30 gms dried material.
· May use decoction as wash for or sprinkle dried powdered material over burns, dermatitis, eczema.
· Juice of leaves for backache.
Culinary
• Leaves and seeds are edible.
• Seeds, raw or cooked.

Studies
• Phytochemicals: (1) Study yielded sucrose phylpropanoid esters plus vanicoside A and B. (2) Study yielded four neoflavonoids.

Availability
Wild-crafted. 

Last Update May 2010

Additional Sources and Suggested Readings
(1)
Study on the Mechanism of Vascular Relaxation of Ethanol Extract of Persicaria Perfoliata H. Gross / Choi Byung-Sun, Cho Eun-Hee et al

(2)
Mile-a-Minute Weed / Yun Wu et al / Invasive Plants of the Eastern US
(3)
New Sucrose Phenylpropanoid Esters from Polygonum perfoliatum / Xingzhong Sun et al / J. Nat. Prod., 2000, 63 (8), pp 1094–1097 / DOI: 10.1021/np000055e
(4)
Neoflavonoids from Polygonum perfoliatum / XINGZHONG SUN et al / Planta medica • 1999, vol. 65, no7, pp. 671-673


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