萱草根，中药名。为百合科植物萱草Hemerocallisfulva（L.）L.、北黄花菜HemerocallislilioasphodelusL.、黄花菜HemerocalliscitrinaBaroni、小黄花菜HemerocallisminorMill.的根。萱草分布于全国各地；北黄花菜分布于黑龙江、辽宁、河北、山西、陕西、甘肃、山东、江苏等地；黄花菜分布于河北、陕西、甘肃、山东、河南、湖北、湖南、四川等地；小黄花菜分布于东北、河北、江苏、江西、山东、山西、陕西等地。具有清热利湿，凉血止血，解毒消肿之功效。常用于黄疸，水肿，淋浊，带下，衄血，便血，崩漏，瘰疬，乳痈，乳汁不通。
Xuan-cao-gen, name of Chinese Medicinal Material. Root of Hemerocallis) refers to the roots of various plants in the Hemerocallis genus, including Hemerocallis fulva (L.) L., Hemerocallis lilioasphodelus L., Hemerocallis citrina Baroni, and Hemerocallis minor Mill. Xuan-cao-gen is distributed throughout China, while Hemerocallis lilioasphodelus is found in Heilongjiang, Liaoning, Hebei, Shanxi, Shaanxi, Gansu, Shandong, Jiangsu, and other regions. Hemerocallis citrina is found in Hebei, Shaanxi, Gansu, Shandong, Henan, Hubei, Hunan, Sichuan, and other areas, and Hemerocallis minor is distributed in the northeast, Hebei, Jiangsu, Jiangxi, Shandong, Shanxi, and Shaanxi.

Xuan-cao-gen is known for its effects of clearing heat and dampness, cooling blood and stopping bleeding, as well as detoxification and reducing swelling. It is commonly used for jaundice, edema, cloudy urine, leukorrhea, bleeding, dysentery, menorrhagia, scrofula, breast abscess, and insufficient lactation.

功效作用 功能
Efficacy and Functions

清热利湿，凉血止血，解毒消肿。主治
Clearing heat and dampness, cooling blood and stopping bleeding, detoxifying and reducing swelling. Mainly used for治疗.

用于黄疸，水肿，淋浊，带下，衄血，便血，崩漏，瘰疬，乳痈，乳汁不通。用法用量
Used for jaundice, edema, cloudy urine, abnormal vaginal discharge, abnormal uterine bleeding, bloody stools, menorrhagia, scrofula, breast abscess, and blocked milk ducts. Dosage and administration.

内服：煎汤，6-9g。外用：适量，捣敷。注意事项
Internal use: Decoction, 6-9g. External use: Appropriate amount, pounded for application. Precautions.

本品有毒，内服宜慎。不宜久服、过量，以免中毒。药理作用
This product is toxic and should be taken internally with caution. It should not be taken for a long time or in excessive amounts to avoid poisoning. Pharmacological actions.

1、抗菌作用。2、利尿作用。3、抗血吸虫作用。4、毒性：本品毒性大，毒性主要集中在根部。相关论述

1. Antibacterial effect.2. Diuretic effect.3. Anti-schistosome effect.4. Toxicity: This product has high toxicity, mainly concentrated in the roots. Related discussions.

1、《嘉祐本草》：“萱根，一名鹿葱，花名宜男。（《风土记》云：“怀妊妇人佩其花生男也。”2、《本草图经》：“萱草，俗谓之鹿葱，处处田野有之。五月采花，八月采根用。今人多采其嫩苗及花跗作菹，云利胸膈甚佳。”临床应用 相关配伍

1. "Jiayou Bencao": "Xuan Gen, also known as Lu Cong, with the flower being called Yi Nan. ('Feng Tu Ji' says: 'Pregnant women who wear its flowers will give birth to boys.')"2. "Bencao Tujing": "Xuan grass, commonly known as Lu Cong, can be found everywhere in the fields. Flowers are harvested in May, and roots in August. Nowadays, many people harvest its tender seedlings and flower buds to make dishes, claiming that it is very beneficial for the chest and diaphragm." Clinical applications and relevant combinations.

1、治大便后血：萱草根和生姜，油炒，酒冲服。（《圣济总录》）2、治大肠下血，诸药不效者：漏芦根十个，茶花五分，赤地榆三钱，象牙末一钱。以上四味，水煎服三次。（《滇南本草》）3、治男妇腰痛：漏芦根果十五个，猪腰子一个。水煎服三次。（《滇南本草》）4、治心痛诸药不效：用萱草根一寸，磨醋一杯，温服止。（《医统大全》）附注

1. To treat blood in the stool: Fry the roots of Xuancao and fresh ginger in oil, then drink with wine. (From "Compendium of Materia Medica")2. For treating bloody stools from the large intestine when other medicines are ineffective: Take ten pieces of Leolurroot, five parts of tea flower, three qian of red-rooted salvia, and one qian of ivory powder. Boil the above four ingredients in water and drink three times. (From "Materia Medica of Southern Yunnan")3. To treat lower back pain in men and women: Take fifteen Leolurroot fruits and one pig kidney. Boil in water and drink three times. (From "Materia Medica of Southern Yunnan")4. When various medicines are ineffective for treating heart pain: Take an inch of Xuancao root, grind it with a cup of vinegar, and drink it warm to relieve the pain. (From "Complete Compendium of Medical Prescriptions") Note:

作萱草根入药的同属植物尚有大苞萱草HemerocallismiddendorffiiTrautv.etMey.又名：金萱、黄花、萱草、金萱草、大花萱草。分布于东北。加工炮制 采收加工
The same genus of plants that can be used as medicine with the roots of the Xuan grass includes the Hemerocallis middendorffii Trautv. et Mey., also known as Jin Xuan, Huang Hua, Xuan Cao, Jin Xuan Cao, and Da Hua Xuan Cao. It is distributed in the northeast region. The processing method involves harvesting and processing.

夏、秋季采挖，除去残茎、须根，洗净泥土，晒干。炮制方法
In summer and autumn, harvest the herbs, remove the remaining stems and roots, wash away the dirt, and sun-dry them. Processing method.

取原药材，除去茎叶等杂质。用清水快洗，取出，稍润，切中段，干燥，筛去灰屑。药材鉴别 药材性状
Collect the original medicinal materials, remove stems, leaves, and other impurities. Wash them quickly with clean water, take them out, slightly moisten, cut them into sections, dry them, and sift out the ashes. Identify the medicinal materials and their characteristics.

1、药材性状（1）萱草根：根茎呈短圆柱形,长1-1.5cm，直径约1cm。有的顶端留有叶残基；根簇生，多数已折断。完整的根长5-15cm，上部直径3-4mm，中下部膨大成纺锤形块根，直径0.5-1cm，多干瘪抽皱，有多数纵皱及少数横纹，表面灰黄色或淡灰棕色。体轻，质松软，稍有韧性，不易折断；断面灰棕色或暗棕色，有多数放射状裂隙。气微香，味稍甜。（2）黄花菜根：根茎类圆柱形，长1-4cm，直径1-1.5cm。根多数，长5-20（-30cm），直径3-4mm，有的根中下部稍膨大成棍棒状或略呈纺锤状。（3）小黄花菜根：根茎较前两种短，根较细而多，长5-15cm，直径2-3mm，末端尖细，表面灰棕色或灰黄棕色，具细密横纹，偶见末端膨大成纺锤状小块根。具韧性，难折断，断切面灰白色。（4）北黄花菜根：与小黄花菜根不易区分。均以表面灰黄色，根条粗大，质充实，去尽地上部分者为佳。2、饮片性状本品呈段状。根为扁圆形，直径3-5mm，外表皮灰黄褐色或灰褐色，具纵皱纹，有的具致密横皱纹，切面黄褐色至黑褐色，多裂隙。根茎呈圆柱形，直径0.8-1.2cm，外表皮棕褐色或深褐色，粗糙，具残留的簇生根及根茎。体轻，质稍韧。气微，味淡。植物学信息 植物种属

1. Medicinal properties:(1) Radix Scutellariae Barbatae: The rhizome is short cylindrical, 1-1.5cm long, with a diameter of about 1cm. Some have leaf remnants at the top; the roots grow in clusters, with many already broken. The intact root is 5-15cm long, with a diameter of 3-4mm at the top, and the middle and lower parts swell into spindle-shaped tuberous roots, with a diameter of 0.5-1cm, often shriveled and wrinkled, with numerous longitudinal and a few transverse wrinkles, and a grayish-yellow or light gray-brown surface. It is lightweight, soft in texture, slightly resilient, not easily broken; the cross-section is gray-brown or dark brown, with numerous radial cracks. It has a slightly fragrant smell and a slightly sweet taste. (2) Radix Patriniae: The rhizome is cylindrical, 1-4cm long, with a diameter of 1-1.5cm. The roots are mostly 5-20 (-30cm) long, with a diameter of 3-4mm, and some roots slightly swell into a club-shaped or slightly spindle-shaped form in the middle and lower parts.(3) Radix Hedyotis Diffusae: The rhizome is shorter than the previous two types, with thinner and more numerous roots, 5-15cm long, with a diameter of 2-3mm, tapering at the end, with a gray-brown or gray-yellow-brown surface, fine horizontal wrinkles, occasionally swelling into spindle-shaped small tuberous roots at the end. It is resilient, difficult to break, and the cut surface is grayish-white.(4) Radix Hedyotis Diffusae var. Oldhamii: Difficult to distinguish from Radix Hedyotis Diffusae. Both have a gray-yellow surface, thick roots, solid texture, and are best when the above-ground parts are removed.2. Characteristics of medicinal slices:The product is in a segmental shape. The root is flat and round, with a diameter of 3-5mm, the outer skin is gray-yellow-brown or gray-brown, with longitudinal wrinkles, some with dense transverse wrinkles, and the cut surface ranges from yellow-brown to black-brown, with many cracks. The rhizome is cylindrical, with a diameter of 0.8-1.2cm, the outer skin is brown-brown or dark brown, rough, with residual clustered roots and rhizomes. It is lightweight, slightly resilient in texture, with a mild aroma and taste. Botanical information: Plant species.

百合科植物萱草、北黄花菜、黄花菜、小黄花菜。形态特征
Liliaceae plants include daylilies, Hemerocallis citrina, Hemerocallis lilioasphodelus, and Hemerocallis minor. Morphological characteristics.

①萱草：萱草在我国有悠久的栽培历史，早在二千多年前的《诗经魏风》中就有记载。后来的许多植物学著作中，如《救荒本草》、《花镜》、《本草纲目》等多有记述。别名有鹿葱、川草花、忘郁、丹棘等。《花镜》中还首记载了重瓣首草，并指出它的花有毒，不可食用。由于长期的栽培，萱草的类型极多，如叶的宽窄、质地，花的色泽，花被管的长短，花被裂片的宽窄等变异很大，不易划分，加上各地常有栽培后逸为野生的，分布区也难于判断。李时珍早就注意到，在不同土质上栽培的萱草，花的质地，色泽的深浅和花期的长短是有变化的。这是正确的。如果只根据少数栽培植株的某些差异来进行分类，则不甚可靠。林奈在发表本种时，曾说是杂种，后来又说来自中国。他所根据的植物可能是欧洲广泛栽培的一个品种(在欧洲虽然有野生萱草，但是从未见关于果实的记载），但究竟是否自我国引去，已无从查考。我们认为，在长期而又广泛栽培的情况下，要考虑到种以下多半系品种这个可能性，因而不宜轻率地定为种或变种。本种的主要特征是：花桔黄色；花被管较粗短，长2-3厘米；内花被裂片宽2-3厘米。根近肉质，中下部有纺锤状膨大；叶一般较宽；花早上开晚上凋谢，无香味，桔红色至桔黄色，内花被裂片下部一般有∧形采斑。这些特征可以区别于本国产的其他种类。花果期为5-7月。②北黄花菜：根大小变化较大，但一般稍肉质，多少绳索状，粗2-4毫米。叶长20-70厘米，宽3-12毫米。花葶长于或稍短于叶；花序分枝，常为假二歧状的总状花序或圆锥花序，具4至多朵花；苞片披针形，在花序基部的长可达3-6厘米，上部的长0.5-3厘米，宽3-5(-7)毫米；花梗明显，长短不一，一般长1-2厘米；花被淡黄色，花被管一般长1.5-2.5厘米，决不超过3厘米；花被裂片长5-7厘米，内三片宽约1.5厘米。蒴果椭圆形，约2厘米，宽约1.5厘米或更宽。花果期6-9月。③黄花菜：植株一般较高大；根近肉质，中下部常有纺锤状膨大。叶7-20枚，长50-130厘米，宽6-25毫米。花葶长短不一，一般稍长于叶，基部三棱形，上部多少圆柱形，有分枝；苞片披针形，下面的长可达3-10厘米，自下向上渐短，宽3-6毫米；花梗较短，通常长不到1厘米；花多朵，最多可达100朵以上；花被淡黄色，有时在花蕾时顶端带黑紫色；花被管长3-5厘米，花被裂片长(6-)7-12厘米，内三片宽2-3厘米。蒴果钝三棱状椭圆形，长3-5厘米。种子约20多个，黑色，有棱，从开花到种子成熟约需40-60天。花果期5-9月。④小黄花菜：根一般较细，绳索状，粗1.5-3(-4)毫米，不膨大。叶长20-60厘米，宽3-14毫米。花葶稍短于叶或近等长，顶端具1-2花，少有具3花；花梗很短，苞片近披针形，长8-25毫米，宽3-5毫米；花被淡黄色；花被管通常长1-2.5厘米，极少能近3厘米；花被裂片长4.5-6厘米，内三片宽1.5-2.3厘米。蒴果椭圆形或矩圆形，长2-2.5厘米，宽1.2-2厘米。花果期5-9月。分布区域

1. Xuancao: Xuancao has a long history of cultivation in China, with records dating back to over two thousand years ago in the "Book of Songs" from the Wei Feng period. Many later botanical works, such as "Jiu Huang Ben Cao," "Hua Jing," and "Ben Cao Gang Mu," also have descriptions of Xuancao. It is also known by other names such as Lu Cong, Chuan Cao Hua, Wang Yu, and Dan Ji. "Hua Jing" was the first to record the double-petaled Xuancao and pointed out that its flowers are poisonous and should not be consumed. Due to long-term cultivation, there are many variations in Xuancao, such as the width and texture of the leaves, the color of the flowers, the length of the flower tubes, and the width of the flower lobes, making it difficult to classify. Additionally, cultivated plants often escape and become wild, making it challenging to determine their distribution areas. Li Shizhen noticed early on that the texture, color, and flowering period of Xuancao cultivated in different soil types vary. This is correct. Relying on minor differences in a few cultivated plants for classification is not very reliable. Linnaeus, when publishing this species, once said it was a hybrid, but later claimed it originated from China. The plant he based his classification on may have been a variety widely cultivated in Europe (although there are wild Xuancao in Europe, there are no records of its fruit). However, it is impossible to verify whether it was introduced from China. We believe that in cases of long-term and widespread cultivation, one must consider the possibility that most of them are varieties below the species level, and therefore it is not advisable to hastily classify them as species or varieties. The main characteristics of this species are: orange-yellow flowers; thick and short flower tubes, 2-3 centimeters long; and wide flower lobes, 2-3 centimeters wide. The roots are fleshy, with spindle-shaped swellings in the middle and lower parts; the leaves are generally wide; the flowers bloom in the morning and wither in the evening, without fragrance, ranging from orange-red to orange-yellow, with triangular spots on the lower part of the inner flower lobes. These characteristics distinguish it from other species native to our country. The flowering and fruiting period is from May to July.2. Bei Huang Hua Cai: The size of the roots varies greatly, but they are generally somewhat fleshy, somewhat cord-like, and 2-4 millimeters thick. The leaves are 20-70 centimeters long and 3-12 millimeters wide. The flower stalk is longer or slightly shorter than the leaves; the flower clusters are branched, often in a pseudo-dichotomous or conical shape, with 4 to several flowers; the bracts are lanceolate, with a length of up to 3-6 centimeters at the base of the flower cluster and 0.5-3 centimeters in the upper part, and 3-5 (-7) millimeters wide; the flower stalk is distinct, generally 1-2 centimeters long; the pale yellow flowers have a flower tube generally 1.5-2.5 centimeters long, never exceeding 3 centimeters; the flower lobes are 5-7 centimeters long, and the inner three lobes are about 1.5 centimeters wide. The capsule is elliptical, about 2 centimeters long and 1.5 centimeters wide or wider. The flowering and fruiting period is from June to September.3. Huang Hua Cai: The plants are generally taller; the roots are somewhat fleshy, with spindle-shaped swellings in the middle and lower parts. There are 7-20 leaves, 50-130 centimeters long and 6-25 millimeters wide. The flower stalk varies in length, generally slightly longer than the leaves, triangular at the base and somewhat cylindrical at the top, with branches; the bracts are lanceolate, with a length of up to 3-10 centimeters at the bottom, gradually shortening from bottom to top, and 3-6 millimeters wide; the flower stalk is relatively short, usually less than 1 centimeter long; there are many flowers, up to over 100; the flowers are pale yellow, sometimes with black-purple at the top when in bud; the flower tube is 3-5 centimeters long, and the flower lobes are (6-)7-12 centimeters long, with the inner three lobes 2-3 centimeters wide. The capsule is bluntly triangular-elliptical, 3-5 centimeters long. There are about 20 seeds, black, with edges, taking about 40-60 days from flowering to seed maturity. The flowering and fruiting period is from May to September.4. Xiao Huang Hua Cai: The roots are generally thinner, cord-like, 1.5-3 (-4) millimeters thick, and do not swell. The leaves are 20-60 centimeters long and 3-14 millimeters wide. The flower stalk is slightly shorter than or nearly equal to the leaves, with 1-2 flowers at the top, rarely with 3 flowers; the flower stalk is very short, the bracts are nearly lanceolate, 8-25 millimeters long and 3-5 millimeters wide; the flowers are pale yellow; the flower tube is usually 1-2.5 centimeters long, rarely nearly 3 centimeters; the flower lobes are 4.5-6 centimeters long, and the inner three lobes are 1.5-2.3 centimeters wide. The capsule is elliptical or rectangular, 2-2.5 centimeters long and 1.2-2 centimeters wide. The flowering and fruiting period is from May to September. Distribution area.

萱草：全国各地常见栽培，秦岭以南各地地区有野生的。北黄花菜：分布于黑龙江、辽宁、河北、山西、陕西、甘肃、山东、江苏等地。黄花菜：分布于河北、陕西、甘肃、山东、河南、湖北、湖南、四川等地。小黄花菜：分布于东北、河北、江苏、江西、山东、山西、陕西等地。生长环境
Xuancao: Commonly cultivated throughout the country, with wild populations found in regions south of the Qinling Mountains. Beihuanghuacai: Distributed in Heilongjiang, Liaoning, Hebei, Shanxi, Shaanxi, Gansu, Shandong, Jiangsu, and other areas. Huanghuacai: Found in Hebei, Shaanxi, Gansu, Shandong, Henan, Hubei, Hunan, Sichuan, and other regions. Xiaohuanghuacai: Distributed in Northeast China, Hebei, Jiangsu, Jiangxi, Shandong, Shanxi, Shaanxi, and other areas. Growing environment.

北黄花菜：生于海拔500-2300m的草甸、湿草地、荒坡或灌丛下。黄花菜：生于海拔2000m以下的山坡、山谷、荒地或林缘。小黄花菜：生于沼泽地、湿地、林荫旁。
Beihuanghuacai: Grows in meadows, wet grasslands, barren slopes, or under shrubs at altitudes of 500-2300m. Huanghuacai: Grows on slopes, valleys, wastelands, or forest edges below 2000m in altitude. Xiaohuanghuacai: Grows in marshes, wetlands, and beside forest edges.