Coreopsis tinctoria

Coreopsis tinctoria

(Guizhou herbal medicine)

[synonym] pyrethrum (Guizhou herbal medicine).

[source] it is the leaf of Coreopsis lineata.

[plant morphology] Coreopsis tinctoria

Perennial herbs, 30-70 cm high. Stem erect, short tomentose, upper branched. Leaves opposite, 3-5-lobed, lobes linear lanceolate, apical lobes 5-8 cm long, 1-1.5 cm wide, apex obtuse, base narrow. Inflorescence axillary or terminal, 4-6 cm in diameter; pedicel 10-30 cm in length; involucral bracts 2-row, 8 in each row, shorter in outer row; ligulate flower yellow, apex with 2-4 shallow teeth; tubular flower yellow. Achenes elliptic. The flowering period is May.

It is cultivated in gardens of Jiangsu, Guangdong and Guizhou.

[collection] harvest in summer and autumn.

[chemical constituents] it contains o? Like chrysantherin and chalcone like chrysantherin.

[Xing Wei] Guizhou herbal medicine: "Xin, Ping. "

[function indications] Guizhou herbal medicine: "removing blood stasis, detumescence, clearing heat and detoxification. Treatment of unknown swelling, poison and knife wound. "

[usage and dosage] external use: tamping.