Polygonum cuspidatum

Polygonum cuspidatum

(Henan)

[synonym] water drop grass (botany Dictionary).

[source] it is the whole plant of Salicaceae.

[plant morphology] Callicarpa officinalis

Perennial herbs, 40-70 cm high. Stem erect, smooth, base of internodes slightly expanded. Leaves opposite, ovate lanceolate, 6-8 cm long, 2.5-4 cm wide, apex acuminate or acuminate, base suborbicular, margin denticulate; petiole 2-3.5 cm long. Raceme terminal and axillary; flowers pedicel; calyx tube oval, lobes 2, lanceolate, purplish red; petals white, 2, obovate, apex 2-lobed, shorter than calyx; stamens 2, outstretched; ovary inferior, 2-locular, style thin, outstretched, stigma capitate. The fruit is nutlike, obovate, globose, with 4 longitudinal furrows, covered with hook like hairs; the peduncle is 1.5-2 times longer than the fruit, usually drooping. The flowering period is from June to July.

Under the forest. It is distributed in Jiangsu, Zhejiang, Anhui, Sichuan, Henan, Shandong, Hebei and Northeast China.

[function indications] harmonizing stomach qi, relieving abdominal pain, promoting urination and menstruation. (Henan)

[usage and dosage] oral administration: decoction.