净井口边草:净制井口边草
Jing-jing-kou-bian-cao: Jing-kou-bian-cao processed by cleaning.

功效作用 功能
Efficacy and Functions

清热利湿，止血消肿。主治
Clearing heat and dampness, stopping bleeding and reducing swelling. Mainly used for治疗。

用于泄泻痢疾，黄疸，淋证，水肿，各种出血，跌打肿痛，疮痈，水火烫伤。用法用量
Used for diarrhea, dysentery, jaundice, gonorrhea, edema, various types of bleeding, bruises and swelling, sores and abscesses, burns and scalds. Dosage and administration.

内服：煎汤，10-30g。外用：研末撒；煎水洗；或鲜品捣敷。相关论述
Internal use: Decoction, 10-30g. External use: Powder for sprinkling; decoction for washing; or fresh product for poultice. Relevant discussions.

1、《西藏常用中草药》：“清热解毒，除湿，止血生肌。主治咳嗽，淋浊，痢疾，水火烫伤。”2、《全国中草药汇编》：“治黄疸型肝炎，急性胆囊炎，扁桃体炎，支气管炎，泌尿系感染，肾炎水肿。”临床应用 相关配伍

1. "Commonly Used Tibetan Medicinal Herbs": "Clears heat, detoxifies, eliminates dampness, stops bleeding, and promotes tissue regeneration. Used for treating cough, cloudy urine, dysentery, and burns from scalding."2. "Compilation of Chinese Medicinal Herbs Nationwide": "Used for treating jaundice-type hepatitis, acute cholecystitis, tonsillitis, bronchitis, urinary tract infections, and nephritis edema." Clinical applications and relevant combinations.

1.治湿热泻痢：凤尾草60-90g，水煎服；或凤尾草30g，铁苋菜，地锦草（红斑鸠窝）15g，水煎服。（《四川中药志》1979年版）2.治黄疸型肝炎：凤尾草60g，虎杖15g，蔊菜（干油菜）30g。水煎服。（《四川中药志》1979年版）3.治泌尿系感染，肾炎水肿：凤尾草15-30g。煎服。（《云南中草药选》）4.治汤火伤：（大叶井口边草）全草研细末，撒伤处。（《湖南药物志》）5.治毒蛇及疯犬咬伤：新鲜凤尾草全草，捣成泥膏，敷贴伤处，可消肿止痛。（《陕西草药》）加工炮制 采收加工

1. Treating damp-heat diarrhea: 60-90g of Polygonum aviculare, decocted in water and taken orally; or 30g of Polygonum aviculare, 15g of Achyranthes bidentata, and 15g of Hedyotis diffusa, decocted in water and taken orally. (From "Sichuan Herbal Medicine Records," 1979 edition)2. Treating jaundice-type hepatitis: 60g of Polygonum aviculare, 15g of Polygonum cuspidatum, and 30g of Erechtites hieracifolia. Decoct in water and take orally. (From "Sichuan Herbal Medicine Records," 1979 edition)3. Treating urinary tract infections and nephritis edema: 15-30g of Polygonum aviculare. Decoct and take orally. (From "Yunnan Herbal Medicine Selection")4. Treating scalds: Grind the whole plant of Polygonum aviculare into fine powder and sprinkle it on the wound. (From "Hunan Materia Medica Records")5. Treating snake bites and rabies: Fresh whole plant of Polygonum aviculare, mashed into a paste, apply to the wound to reduce swelling and relieve pain. (From "Shaanxi Herbal Medicine") Processing and preparation: Harvesting and processing.

全年均可采收，鲜用，或洗净，切段，晒干。植物学信息 植物种属
It can be harvested all year round, used fresh, or washed, cut into sections, and dried in the sun. Botanical information: Plant species.

凤尾蕨科植物凤尾蕨。形态特征
Family Osmundaceae, plant Osmunda. Morphological characteristics.

陆生蕨类植物，植株高50-100cm。根茎短，横走，密被棕色披针形鳞片。叶纸质，密生，二型；营养叶柄长12-35cm，光滑，禾秆色，叶片卵形或卵圆形，长20-40cm，宽15-25cm，基部圆楔形，先端尾状，单数一回羽状，侧生羽片2-5对，线形，长12-20cm，宽8-16mm，最下部羽片有柄，基部常为二叉状深裂，边缘有刺状锯齿，叶脉羽状；孢子叶叶柄长30-50cm；叶片卵圆形，长25-40cm，宽15-20cm，一回羽状，但中部以下的羽片通常分叉，侧生羽片2-5对，线形，长15-20cm，宽6-8mm，近先端营养部分有尖齿。孢子囊群生于羽片边缘至近先端而止；囊群盖线形，膜质，全缘，灰白色。分布区域
Fern plants that grow on land, with a plant height of 50-100cm. The rhizome is short, creeping horizontally, densely covered with brown lanceolate scales. The leaves are papery, densely arranged, and of two types: sterile fronds have a smooth, straw-colored stalk that is 12-35cm long, with ovate or oval leaflets that are 20-40cm long and 15-25cm wide. The base is rounded-wedge shaped, the tip is tail-like, pinnate once, with 2-5 pairs of lateral leaflets that are linear, 12-20cm long and 8-16mm wide. The lowermost leaflets have stalks, the base is often deeply bifurcated, with prickly serrations along the edges, and the veins are pinnate. Fertile fronds have a leaf stalk that is 30-50cm long, with oval leaflets that are 25-40cm long and 15-20cm wide. They are pinnate once, but the leaflets below the middle usually fork, with 2-5 pairs of lateral leaflets that are linear, 15-20cm long and 6-8mm wide. The nutritive part near the tip has sharp teeth. Spore clusters grow along the edges of the leaflets up to near the tip; the cluster covers are linear, membranous, with entire margins, and are grayish-white. Distribution area.

华中、西南及浙江、福建、江西、陕西、台湾等地。生长环境
Central China, Southwest China, Zhejiang, Fujian, Jiangxi, Shaanxi, Taiwan, and other regions. Growing environment.

凤尾蕨生于海拔2000m以下的阴湿处或石灰岩缝中。
The maidenhair fern grows in shady and damp places below an altitude of 2000 meters or in limestone crevices.