外觀(guan)黨參(can)(can)(can)一(yi)般(ban)長30-40厘米，干瘦(shou)且(qie)有乳汁，褐棕(zong)色(se)，莖底部一(yi)般(ban)有多數瘤狀的(de)莖痕，根(gen)部肥大而且(qie)呈現紡(fang)(fang)錘(chui)狀或(huo)紡(fang)(fang)錘(chui)狀圓柱形。人參(can)(can)(can)一(yi)般(ban)主(zhu)根(gen)長30-60厘米，莖體(ti)肉質肥厚，黃白色(se)，整體(ti)呈圓柱形或(huo)紡(fang)(fang)錘(chui)形，與(yu)黨參(can)(can)(can)不同(tong)的(de)是根(gen)部有分(fen)枝。西洋參(can)(can)(can)又稱花旗參(can)(can)(can)，參(can)(can)(can)型莖體(ti)呈錐條(tiao)狀，一(yi)般(ban)為手指粗(cu)細，最明顯的(de)是表(biao)面有橫向(xiang)突(tu)出的(de)皮孔。體(ti)質堅(jian)硬，斷面呈顆粒狀，有一(yi)淺棕(zong)色(se)環紋，并(bing)有棕(zong)黃色(se)！…

西(xi)(xi)(xi)(xi)洋(yang)參(can)(can)(can)生長對環(huan)(huan)境(jing)要(yao)求較高，不同產(chan)地(di)西(xi)(xi)(xi)(xi)洋(yang)參(can)(can)(can)品質差異明顯，氣候(hou)條件(jian)(jian)和(he)(he)土壤是影響西(xi)(xi)(xi)(xi)洋(yang)參(can)(can)(can)品質的(de)主要(yao)因素。西(xi)(xi)(xi)(xi)洋(yang)參(can)(can)(can)原產(chan)于(yu)北美(mei)洲加拿大(da)的(de)東(dong)南部(bu)和(he)(he)美(mei)國東(dong)部(bu)山區(qu)，20世紀(ji)80年代，我國山東(dong)、北京、吉(ji)林(lin)、遼寧、黑龍江、陜西(xi)(xi)(xi)(xi)等地(di)引種栽培(pei)，人工栽培(pei)西(xi)(xi)(xi)(xi)洋(yang)參(can)(can)(can)選(xuan)擇與(yu)野生西(xi)(xi)(xi)(xi)洋(yang)參(can)(can)(can)具(ju)有(you)相(xiang)近氣候(hou)條件(jian)(jian)和(he)(he)生長環(huan)(huan)境(jing)的(de)地(di)區(qu)，并通過搭(da)建大(da)棚等措施為西(xi)(xi)(xi)(xi)洋(yang)參(can)(can)(can)生長提(ti)供有(you)利(li)的(de)生長環(huan)(huan)境(jing)，從而保障西(xi)(xi)(xi)(xi)洋(yang)參(can)(can)(can)的(de)正！…