Big tea root
(list of medicinal plants in Guangxi)
[synonyms] Caulis Spatholobi, Caulis Chrysanthemi, Caulis Sinomenii, Caulis pyrophylla.
[source] stems and leaves of Rubiaceae.
[plant morphology] Polygonatum odoratum
Perennial woody vines. Stem bark reddish brown; branchlets square, with stipule ring. Leaves opposite, ovate oblong or ovate elliptic, 7-12 cm long, 3-5 cm wide, apex acuminate or acute, base broadly cuneate, entire; petiole about 1 cm long; stipules membranous. The flowers are terminal loose corymbose cymes; calyx is 5-lobed, one of which is usually expanded into obovate leaf shape, white, stipitate, 7-8 cm long and 5-6 cm wide; corolla funnel-shaped, yellow, outside covered with filiform hairs, lobes 5, short pointed; stamen 5, disk fleshy; ovary inferior, 2-locular, with many ovules in each locule. Berry elliptic, stipitate, ca. 1 cm long, reddish brown. The flowering period is from March to April. The fruit period is from May to August.
It grows in the soil hillside, valley, Riverside Bush and sparse forest. It is distributed in Yunnan, Guangxi, Guangdong and Taiwan.
[collection] harvest in summer and autumn.
[nature and taste] selected materials for exhibition of new Chinese herbal medicine therapy of Guangxi Medical College: "the taste is slightly sweet and the nature is cool. "
[functions and indications] ① in the list of Guangxi Medicinal Plants: "clearing away heat, diminishing inflammation, relieving heat and toxin. Treatment of scabies, heat accumulation. "
② Selected materials for exhibition of new Chinese herbal medicine therapy of Guangxi Medical College: "treating burns. "
[usage and dosage] oral administration: decoction, 0.5-1 Liang (fresh). External use: daub with mashed juice or wash with fried water.
Chinese PinYin : Da Cha Gen
Big tea root
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