虎杖又名大叶蛇棁管,为蓼科蓼属植物。虎杖(Polygonum Cuspidafum SiebetZucc)以根入药,生于山沟、溪边、林下阴湿处,分布极广,我国西北、华东、华中、华南及西南各省均有分布,我市郊县均有栽培和野生的虎杖。虎杖具有清热利湿,通便解毒,散瘀活血的功能,对肝炎、肠炎、痢疾、扁桃体炎、咽喉炎、风湿性关节炎、急性肾炎、尿路感染、闭经、便结、跌打损伤、节痈肿毒、毒蛇咬伤均有疗效。虎杖喜湿润的环境条件,对土壤的要求不严,而以肥沃的土壤上为生长好,可用种 Polygonum cuspidatum, also known as the large leaf snake tube, Polygonum Polygonum genus. Polygonum Cuspidafum SiebetZucc is rooted in medicine, was born in ravines, streams, wet under the forest, a very wide distribution, China’s northwestern, eastern, central, southern and southwestern provinces are all distributed in our suburban counties have cultivated and Wild knotweed. Polygonum cuspidatum has the functions of clearing away heat and dampness, purifying stasis and removing blood stasis and promoting blood circulation, and has the functions of preventing and treating the hepatitis, enteritis, dysentery, tonsillitis, pharyngitis, rheumatoid arthritis, acute nephritis, urinary tract infection, amenorrhea, Festival boil poison, snake bites have curative effect. Polygonum hi hi humid environmental conditions, the requirements of the soil lax, and fertile soil for growth, available species