Green grass

Green grass

(Suzhou native medicinal materials)

[synonym] Eupatorium adenophorum and huatanqing.

[source] it is the whole plant of the family Acanthaceae.

[plant morphology] coir raincoat

Herbs annual or biennial. The stem is 25-90 cm high. Stems slightly tetragonal, glabrous or tender, pubescent. Leaves opposite; oblong lanceolate, rugose or linear, 2-9 cm long, 7-15 mm wide, papery, both ends narrow, entire, both sides covered with protruding small lines, petiole 3-10 mm long. Flowers sessile, 3-6 or more, clustered leaf axils; bracts ovate or elliptic, 6-8 mm long, bracteoles about half of calyx; calyx about 8 mm long, lobes 5, linear lanceolate, coarsely hairy; corolla light blue or whitish, about 12 mm long, upper part of corolla tube enlarged, 2-lipped, bald, 4-lobed, upper 1-lobed; apex pointed, lower 3-lobed, apex rounded; stamens 4, paired, 2-lobed Pistil 1, style linear, stigma 2-lobed; ovary superior, 2-locular. Capsule oblong, 2-striated, 10 mm long, 3 mm wide, brown, 2-valved at maturity. Seeds numerous, oblate, up to 1 mm, light tan. The flowering period is from July to August.

It grows in the stream side, valley, open forest and grass in the semi humid place. It is distributed all over the south of China.

[collection] harvest in summer and autumn, cut the aboveground parts and dry them in the sun.

[chemical composition] it contains 25% oil and trace alkaloids, calcium phosphate and potassium chloride. The seeds and leaves contain potassium, but the leaves contain more potassium, so the diuretic effect is stronger.

[nature and taste] Suzhou native medicinal materials: "bitter, cold. "

[functions and indications] 1. Suzhou herbal medicine: "for the treatment of aphthous ulcer, heat toxin, erysipelas and jaundice are frequently used. "

② "Collection of commonly used folk herbs": "resolving phlegm, relieving cough, treating hematemesis. "

[usage and dosage] oral administration: decoction, 1-3 yuan.

[taboo] "Suzhou native medicinal materials": "it should not be used for deficiency cold and weak stomach. "