苏土藁本，中药名。为伞形科植物泽芹Sium suaue Walter的地上部分。具有祛风止痛，降压的功效。主治感冒，头痛，高血压病，头晕。
Su-tu-gao-ben, name of Chinese Medicinal Material. the aerial part of the plant Sium suave Walter from the Umbelliferae family, has the functions of dispelling wind, alleviating pain, and reducing blood pressure. It is used to treat the common cold, headache, hypertension, and dizziness.

功效作用 功能
The efficacy and functions.

祛风止痛，降压。主治
Dispel wind and alleviate pain, lower blood pressure. Mainly used for treating...

感冒，头痛，高血压病，头晕。用法用量
The common cold, headache, hypertension, and dizziness. Dosage and usage.

内服：煎汤，6-15g。化学成分
Internal administration: Decoction, 6-15g. Chemical composition.

含呋喃香豆精成分。加工炮制 采收加工
Containing furan coumarin. Processing and harvesting.

夏季采收，鲜用或晒干。药材鉴别 药材性状
Summer is the season for harvesting, and the herbs can be used fresh or dried in the sun. The identification and properties of the herbs should be determined.

本品茎呈圆柱形，长60-100cm，直径0.3-1.5cm；节明显。表面绿色可棕绿色，有多数纵直纹理及纵脊；质脆，易折断，断面平坦，白色或黄白色；皮部薄，木部狭，髓部大，其间均布满小孔，上部茎中间为大形空洞。叶一回羽状分裂，叶片大多脱落，残留的小叶片呈披针形，叶缘有锯齿；叶柄呈管状，基部成鞘状包茎。手搓叶片，有清香气，味淡。以茎粗，色绿，香气浓者为佳。植物学信息 植物种属
This herb has a cylindrical stem, 60-100cm long and 0.3-1.5cm in diameter, with obvious nodes. The surface is green to brownish-green, with numerous longitudinal veins and ridges. It is brittle and easily breaks, with a flat, white or yellow-white cross-section. The bark is thin, the wood is narrow, and the pith is large, with small pores distributed throughout. The upper part of the stem has a large cavity. The leaves are once-pinnately compound, with most leaflets falling off and the remaining ones being lanceolate with serrated edges. The leaf stalk is tubular, forming a sheath-like base. When the leaves are rubbed, they emit a mild fragrance and have a mild taste. The best quality stems are thick, green, and highly fragrant. Botanical information: Plant species.

伞形科植物泽芹。形态特征
Umbelliferae plant - Zeqin. Morphological characteristics

多年生草本，高60-120cm。全株光滑无毛，有成束的纹锤状根和须根。茎有纵条纹，通常在近基部的节上生根。叶片轮廓长圆形至卵形，长6-25cm，宽7-10cm，一回羽状分裂，有羽片3-9对，羽片疏离，披针形至线形，长1-4cm，宽3-15mm，基部圆楔形，先端尖，边有细锯齿和为且锯齿；上部的茎生叶较小。复伞形花序顶生和侧生，花序梗粗壮，长3-10cm；总苞片6-10，披针形或线形，全缘或有缺刻，反折；伞辐10-20，长1.5-3cm；小总苞片线状披针形，长1-3mm；花白色；萼齿细小；花柱基短圆锥形。双悬果卵形，长2-3mm，分生果果棱肥厚，近去状，每棱槽内有油管1-3，合生面有油管2-6。花期8-9月，果期9-10月。分布区域
Perennial herb, 60-120cm tall. The entire plant is smooth and hairless, with fascicled taproots and fibrous roots. The stem has longitudinal stripes and usually roots at the nodes near the base. The leaf blade is oblong to ovate, 6-25cm long, 7-10cm wide, pinnately divided, with 3-9 pairs of pinnules that are sparse, lanceolate to linear, 1-4cm long, 3-15mm wide, with a rounded wedge-shaped base, pointed tip, finely serrated edges, and coarse serrations; the upper stem leaves are smaller. The compound umbel inflorescence is terminal and lateral, with a stout peduncle, 3-10cm long; the involucre consists of 6-10 lanceolate or linear entire or dentate bracts, reflexed; the rays are 10-20, 1.5-3cm long; the small involucel bracts are linear-lanceolate, 1-3mm long; the flowers are white; the calyx teeth are small; the base of the style is short and conical. The paired fruits are ovoid, 2-3mm long, with thickened ridges, nearly oblate, with 1-3 oil tubes in each furrow, and 2-6 oil tubes on the adaxial surface. Flowering occurs from August to September, and fruiting occurs from September to October. Distribution area: [not provided]

分布于东北、华北及华东各地。生长环境
Distributed in the Northeast, North China, and East China. Growing environment.

生于沼泽、湿草甸子、溪边、水边较潮湿处。
Born in swamps, wet meadows, by streams, and in damp areas near water.