Ghost feather arrow

(essential preparation of raw herbs)

[synonyms] heicao (Guangxi wild resource plant), youkecao, kecao (Nanning medical records), heigucao, Yujian (Guangdong traditional Chinese Medicine).

[source] it is the whole plant of guiyujian.

Guiyujian

Annual erect herb, 15-45 cm high. The root is short and undeveloped. Stem slender, hollow, cylindrical, slightly square at the upper end, solitary, slightly branched, covered with gray white erect or short hairs. Leaves opposite, root leaves broad obovate or ovate, about 2.5-5 cm long, apex obtuse, entire, both sides pubescent; stem leaves sparse, long elliptic or lanceolate, apex obtuse, entire or dentate, upper leaves narrow, alternate; lower main vein slightly prominent, both sides pubescent; petiole very short or absent. The flowers are purple blue, arranged in a tetragonal or oblong spike, less than 2.5 cm in length; bracts 2, triangular lanceolate or broad ovate, both inside and outside covered with rough short hairs; calyx 5-lobed, lobes linear, outside covered with short hairs; corolla tube about twice as long as calyx, throat densely covered with thick long hairs, apex 5-lobed; stamen 4, internal, filaments light purple, T-shaped, black; pistil 1, style rod-shaped . Capsule oblong, compressed, apex acuminate, calyx persistent, locular dorsal cracking, with dozens of small black seeds. The flowering period is from May to September.

Growing in low grass on hillside, roadside or countryside. Distributed in Guangdong, Guangxi, Hunan and other places.

[collection] harvest in autumn. Remove impurities, sun dry until half dry, take back and pile up, cover with linen, stew for two days, and dry.

[medicinal material] dry whole grass, black or dark brown, slightly covered with white hairs. Stem hollow; root leaves ovate or obovate, stem leaves linear. The top often has inflorescence or fruit. The taste is slightly bitter. The best color is black.

Produced in Guangxi, Guangdong and other places.

[nature and taste] 1. Nanning medical records: "bitter, cold, non-toxic. "

② "Guangxi records of traditional Chinese medicine": "it tastes light and slightly bitter, has a cool nature and is non-toxic. "

[function indications] heat clearing, blood cooling and detoxification. It is used to treat spot Sha, typhoid fever, epilepsy, skin wind toxin swelling and pain.

① "Preparation of raw herbal medicine": treating blood arrow, epilepsy. "

② "Guangxi wild resources plants": "treatment of spot fever, severe cold. "

③ "Guangxi Traditional Chinese medicine annals": "clearing away heat and toxin, eliminating wind toxin, swelling and pain of skin. "

[usage and dosage] oral administration: decoction, 2-5 yuan,

[taboo] records of Guangxi Traditional Chinese medicine: "it is forbidden for pregnant women with body deficiency cold. "