Phyllostachys heterocycla leaves

Phyllostachys heterocycla leaves

(notes to the classic of Materia Medica)

[source] it is the tender leaf of Pleioblastus amarus.

[plant morphology] Pleioblastus amarus, also known as Phyllostachys heterocycla.

Culm erect, up to 4 m high, cylindric, about 15 mm in diameter. The culm is powdery when young, especially under the sheath ring. There are usually brown sheath residues on the sheath ring; the culm ring is not very prominent. Sheath paper leathery, slender triangular, withered yellow, with brown or white small hairs; sheath ear small, with several erect brown hairs; sheath tongue truncated flat head, edge densely ciliated; sheath leaf slender lanceolate, 4-11 cm long, 3-5 mm wide, green when young, multi veined. The main culm has 3-6 branches per node, 1-3 leafy twigs on one node and 2-4 leaves on the top. Leaf sheaths hay colored, linear lanceolate; ligule truncated. The leaf blade is lanceolate, 8-20 cm long and 10-28 mm wide, with 4-8 pairs of secondary veins, 4-8 pairs of small transverse veins, and the margin is serrate; the petiole is 2-7 mm long. The base of flower branch is surrounded by bracts, on which racemes grow; spikelets contain 8-12 flowers, green; 3-5 flowers; lemma ovate lanceolate, 8-11 mm long, with longitudinal veins and small transverse veins, apex sharp, glabrous or upper margin hairy; palea is as long as lemma or longer, with cilia at ridge and top; perianth 3, ovate; stamens 3, anther yellow; ovary narrow, glabrous, The apex splits into 3 styles and the stigma is feathery. The flowering period is from April to May. The shoot period is from May to June.

On sunny hillsides or Plains. It is distributed in Zhejiang, Jiangsu, Jiangxi and other Yangtze River Basins and southwest China.

This plant's rhizome (bitter bamboo root), seedling (bitter bamboo shoot), culm skin (bitter bamboo Ru), culm liquid (bitter bamboo juice) after being roasted by fire, and withered young bamboo culm (immortal stick) are also used for medicine. See the special regulations for details.

[collection] it is picked in summer and autumn and dried in the sun.

[herbal medicine] most of the dried leaves are long and thin. After spreading, the leaves are lanceolate, 6-12 cm long and 10-15 mm wide. Apex acute, base rounded. Petiole 6-10 mm long. The upper part is grayish green, smooth, and the lower part is scabrous and hairy. The main vein is relatively small. There are 8-16 veinlets on both sides, and one side of the edge is serrate. It's brittle and elastic. Weak Qi, slightly bitter taste. It is better that the leaves are tender green and rolled into tube shape.

It is mainly produced in Zhejiang, Jiangsu and Jiangxi.

[nature and taste] rihuazi materia medica: "it tastes bitter, cold and nontoxic. "

Functions and indications: clearing away heat, improving eyesight, promoting orifices, detoxifying and killing insects. Treatment of diabetes, fever, insomnia, eye pain, aphtha, aphasia, soup fire injury.

① Bielu: "treat aphthous ulcer, eye pain, clear eyes, benefit nine orifices. "

② "Dietotherapy Materia Medica": "it is mainly used for aphthous ulcer, eye heat and hoarseness. "

③ Rihuazi materia medica: "it can cure insomnia, quench thirst, detoxify alcohol, eliminate fever and sweating, and cure apoplexy and aphasia. "

④ Compendium: "killing insects. "

⑤ "Classification of herbal medicine nature": "treat vexed heat, detoxify. It can relieve children's hot flashes and burn the fire injury caused by calcined (final application) soup. "

[usage and dosage] oral: decoction, 2-4 yuan. External use: burning, grinding and coating.

[prescription selection] 1. To cure a stroke, if you lose your voice, you can't choke: take it with thick boiled bitter bamboo leaves. (behind the elbow)

② Treatment of head sores and ear sores in children: burn bamboo leaves and apply pig fat. It's also wonderful to apply chicken white. (secret records of son and mother)

③ For those who do not know how to cure the evil sores: burning bitter bamboo leaves and applying yellow chicken seeds. (sun Zhenren's food taboo)