双参，中药名。为川续断科植物大花双参TriplostegiagrandifloraGagnep.的根。分布于四川、云南等地。具有益肾，活血调经之功效。用于肾虚腰痛，遗精，阳痿，月经不调，不孕，闭经。
Shuang-can, name of Chinese Medicinal Material. It refers to the root of Triplostegia grandiflora Gagnep., a plant in the family of the Chuanxuduan. It is distributed in Sichuan, Yunnan, and other places. It has the functions of nourishing the kidneys, promoting blood circulation, and regulating menstruation. It is used for kidney deficiency with lumbar pain, spermatorrhea, impotence, irregular menstruation, infertility, and amenorrhea.

功效作用 功能
The efficacy and functions.

益肾，活血调经。主治
Tonify the kidney, promote blood circulation, and regulate menstruation.主治

用于肾虚腰痛，遗精，阳痿，月经不调，不孕，闭经。用法用量
Used for kidney deficiency with symptoms such as lower back pain, spermatorrhea, impotence, irregular menstruation, infertility, and amenorrhea. Dosage and administration: [to be determined based on individual condition and specific traditional Chinese medicine prescription].

内服：煎汤，15-30g。相关论述
Internal administration: Decoction, 15-30g. Relevant discussion.

《云南中草药》：“调经活血，益肾。主治闭经，月经不调，肾虚腰痛，遗精，阳痿，不孕症。”临床应用 相关配伍
"Yunnan Traditional Chinese Medicine": "Regulating menstruation and promoting blood circulation, nourishing the kidneys. It is used to treat amenorrhea, irregular menstruation, kidney deficiency with lower back pain, spermatorrhea, impotence, and infertility." Clinical applications and related compatibility.

治肝炎：（双参）30g，与猪肝蒸服。（《云南中草药》）加工炮制 采收加工
Treatment for hepatitis: (Ginseng and Astragalus) 30g, steamed and taken with pig liver. (From "Yunnan Traditional Chinese Medicine") Processed and prepared for consumption.

秋季采挖，洗净，鲜用或晒干。药材鉴别 药材性状
Harvest in autumn, wash and clean, use fresh or dry in the sun. Identify the medicinal materials and their properties.

根呈棒状，肉质，常两个双生，外皮淡褐色，内面白色，干后变蓝色。以粗壮、均匀、肉质肥厚者为佳。植物学信息 植物种属
The roots are cylindrical, fleshy, often paired in twos, with a light brown outer skin and a white inner surface, turning blue when dried. It is best to use roots that are thick, uniform, and fleshy. Botanical information: plant species.

川续断科植物大花双参。形态特征
The plant is Large Flowered Gynostemma, a herb used in traditional Chinese medicine. It has the following morphological characteristics:

大花双参又名：大花囊苞花。柔弱多年生直立草本，高20-45厘米；主根红棕色，常二歧，稍肥厚，略呈纺锤形，成对生长，长3-4厘米，径约0.5厘米，一个较大，一个较小。根茎纤维状，具2-4节，节间长约1厘米。茎纤细，单一，直立，微四棱形，具沟，被白色长柔毛和糙毛，有时夹有腺毛。叶对生，基部相连；下部叶轮廓倒卵形至倒卵状披针形，长3-8厘米，先端圆，基部渐狭，无柄，2-3对羽状深裂或浅裂，中裂片大，宽椭圆形，两侧裂片渐小或呈牙齿状，边缘锯齿状或具钝齿，上面浓绿色，下面苍白色，粗糙而厚，两面被长柔毛，茎上部叶依次渐小成苞片状。花成疏松顶生二歧聚伞圆锥花序，第1-2回分枝细长，密被白色平展毛和腺毛；分枝处各有一对苞片，线形，长0.5厘米，顶端钝，边缘有浅齿或全缘，具1脉；下部苞叶状，长约2厘米，边缘浅裂或锯齿状，密被白色平展毛和腺毛。花梗长2-3毫米；小总苞萼状，4裂，裂片披针形，长2-3毫米，端急尖，密被黑色腺毛；萼筒卵形，具8条肋，檐部具5齿，齿端急尖，被长硬毛；花冠白色带粉红色，基部狭筒状，上部漏斗形，近辐射对称，长1-1.2厘米，外面微被白色柔毛，裂片5，长为花冠的1/3，先端钝；雄蕊4，插生花冠管上部，稍伸出，花药黄色，内向；子房下位，包围于狭长圆形囊状小总苞内，花柱短于雄蕊，柱头头状。瘦果包于囊苞内，果时囊苞4裂，裂片先端直尖：无曲钩。花果期7-10月。分布区域
The plant known as "大花双参" is also called "大花囊苞花". It is a delicate perennial herbaceous plant, growing upright to a height of 20-45 centimeters. The main root is reddish-brown, often bifurcated, slightly thickened, and somewhat spindle-shaped, growing in pairs, with one larger and one smaller, each about 3-4 centimeters long and 0.5 centimeters in diameter. The rhizome is fibrous, with 2-4 nodes, and the internodes are about 1 centimeter long. The stem is slender, single, upright, slightly four-angled, with grooves, covered with long white soft hairs and rough hairs, and sometimes with glandular hairs. The leaves are opposite, connected at the base; the lower leaves are ovate to lanceolate in outline, 3-8 centimeters long, with a rounded apex, gradually narrowing at the base, without petioles, deeply or shallowly lobed in 2-3 pairs, with the central lobe being large and broadly elliptic, the lateral lobes gradually smaller or tooth-like, with serrated or obtuse teeth along the edges, dark green on the upper surface, pale on the lower surface, rough and thick, and covered with long soft hairs on both sides. The upper leaves on the stem gradually become bract-like. The flowers form loose, terminal, bifurcated umbellate cymes, with the first 1-2 branches being slender and densely covered with white spreading hairs and glandular hairs; each branch has a pair of linear bracts, 0.5 centimeters long, with a blunt apex, shallow teeth or entire margins, and a single vein; the lower bracts are leaf-like, about 2 centimeters long, with shallowly lobed or serrated margins, and densely covered with white spreading hairs and glandular hairs. The flower stalk is 2-3 millimeters long; the small calyx is tubular, 4-lobed, with lanceolate lobes, 2-3 millimeters long, and sharply pointed at the tip, densely covered with black glandular hairs; the calyx tube is ovate, with 8 ribs, and the rim has 5 teeth, with sharply pointed tips, and is covered with long, stiff hairs; the corolla is white with a pink tinge, narrowly tubular at the base, funnel-shaped at the top, nearly radially symmetrical, 1-1.2 centimeters long, with a slight covering of white soft hairs on the outside, and 5 lobes, one-third the length of the corolla, with blunt tips; there are 4 stamens, inserted on the upper part of the corolla tube, slightly protruding, with yellow anthers, facing inward; the ovary is inferior, surrounded by a narrow, elongated, sac-like small calyx, with the style shorter than the stamens, and the stigma head-shaped. The achene is enclosed in the sac-like calyx, which splits into 4 lobes when ripe, with the tips of the lobes straight and pointed, without hooks. The flowering and fruiting period is from July to October. This plant is distributed in [specific region].

分布于四川、云南。生长环境
Distributed in Sichuan and Yunnan. Growing environment.

生于海拔2000-3000m的山谷林下、林缘、草坡等处。
It grows in the valley forests, forest edges, and grassy slopes at an altitude of 2000-3000 meters.