紅景天的生長特性

首先我們需要了解的是紅景天的基本特征有什么，這樣才能對紅景天有直觀的認識，起碼不會購買到假冒的紅景天。紅景天為多年生草木或灌木植物，生長在海拔800——2500米高寒無(wu)污染(ran)地(di)帶的珍稀野生植物。高10-20厘米(mi)。根(gen)粗(cu)壯，圓錐(zhui)形(xing)(xing)，肉質(zhi)，褐黃色，根(gen)頸(jing)部具多數須根(gen)。根(gen)莖短(duan)，粗(cu)狀(zhuang)，圓柱形(xing)(xing)，被多數覆瓦(wa)狀(zhuang)排列的鱗片狀(zhuang)的葉(xie)。從莖頂端(duan)之葉(xie)腋抽出數條(tiao)花(hua)莖，花(hua)莖上下部均有肉質(zhi)葉(xie)，葉(xie)片橢(tuo)圓形(xing)(xing)，邊緣具鋸齒，先端(duan)尖(jian)銳，基部楔形(xing)(xing)，幾無柄。聚傘(san)花(hua)序頂生，花(hua)紅(hong)色。7-9月采收。

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紅景天怎么鑒別真假

紅(hong)(hong)景天(tian)的鑒(jian)(jian)別方法很(hen)多(duo)，有性狀鑒(jian)(jian)別、顯微鑒(jian)(jian)別、色譜(pu)鑒(jian)(jian)別和分(fen)子生(sheng)物技術(shu)，下(xia)面為(wei)大家介紹(shao)一下(xia)紅(hong)(hong)景天(tian)的性狀鑒(jian)(jian)別：

紅景(jing)天是景(jing)天科多年生草(cao)木或灌(guan)木植物，生長在海拔800-2500米(mi)高(gao)寒無污染地帶的珍稀野生植物。高(gao)10-20厘米。已確認的紅(hong)(hong)景天(tian)超過二(er)百個(ge)品種，當中(zhong)大約二(er)十(shi)多種為(wei)亞洲傳統醫學的常(chang)用藥，例如小花(hua)紅(hong)(hong)景天(tian)、大花(hua)紅(hong)(hong)景天(tian)、薔薇紅(hong)(hong)景天(tian)、圣地(di)紅(hong)(hong)景天(tian)等(deng)。那(nei)么，哪(na)種紅(hong)(hong)景天(tian)最好(hao)？

在(zai)紅(hong)景天那么(me)多品種中(zhong)，生長于海拔 4300 米以上(shang)的大花紅(hong)景天是最優良的品(pin)種(zhong)(zhong)，其有效成份紅(hong)景天苷的含量遠遠高于(yu)其它品(pin)種(zhong)(zhong)，自然生長(chang)的大花紅(hong)景天需7-8年方可(ke)采用，可(ke)謂藥源中(zhong)的正(zheng)宗極品，人(ren)們(men)習(xi)慣上將產自西藏(zang)的大花紅(hong)景(jing)天稱之為“藏(zang)域紅(hong)景(jing)天”，謂之“西藏(zang)人(ren)參(can)”、“長生(sheng)不老草(cao)”、“仙賜草(cao)”。

紅景天如何挑選

紅(hong)景天(tian)根莖一般呈圓(yuan)柱(zhu)形，粗短，略彎曲，表皮棕色(se)(se)或者褐色(se)(se)，粗糙有褶皺，剝開外(wai)皮有一層(ceng)膜質黃色(se)(se)表皮且具有粉(fen)紅(hong)色(se)(se)花(hua)紋(wen)，斷(duan)面粉(fen)紅(hong)色(se)(se)或紫紅(hong)色(se)(se)，有一環紋(wen)，質輕，疏松。紅(hong)景天(tian)鑒別主要還是看其主根呈圓(yuan)柱(zhu)形，粗短，斷(duan)面橙紅(hong)色(se)(se)或紫紅(hong)色(se)(se)，有時具裂(lie)隙。氣芳香，味微苦澀，后味甜。

從(cong)外觀(guan)上(shang)來(lai)說優(you)質(zhi)(zhi)的(de)(de)紅(hong)(hong)(hong)(hong)(hong)景(jing)(jing)天(tian)(tian)(tian)在日光(guang)下(xia)顏色會非常的(de)(de)紅(hong)(hong)(hong)(hong)(hong)，并(bing)且(qie)正品紅(hong)(hong)(hong)(hong)(hong)景(jing)(jing)天(tian)(tian)(tian)在日光(guang)下(xia)還(huan)會越曬越紅(hong)(hong)(hong)(hong)(hong)，這(zhe)個辦法是(shi)非常容易(yi)區(qu)分其他冒充(chong)產品的(de)(de)。優(you)質(zhi)(zhi)紅(hong)(hong)(hong)(hong)(hong)景(jing)(jing)天(tian)(tian)(tian)的(de)(de)質(zhi)(zhi)地是(shi)較(jiao)(jiao)(jiao)軟是(shi)非常適(shi)合泡酒(jiu)、泡茶用的(de)(de)，但是(shi)低海(hai)拔(ba)的(de)(de)紅(hong)(hong)(hong)(hong)(hong)景(jing)(jing)天(tian)(tian)(tian)質(zhi)(zhi)地比(bi)較(jiao)(jiao)(jiao)硬，而(er)且(qie)不(bu)易(yi)切片食用。高(gao)海(hai)拔(ba)的(de)(de)紅(hong)(hong)(hong)(hong)(hong)景(jing)(jing)天(tian)(tian)(tian)因為密(mi)度低，所以(yi)重量較(jiao)(jiao)(jiao)輕，而(er)海(hai)拔(ba)低的(de)(de)紅(hong)(hong)(hong)(hong)(hong)景(jing)(jing)天(tian)(tian)(tian)會比(bi)較(jiao)(jiao)(jiao)重。當然(ran)也可以(yi)從(cong)氣味上(shang)簡單的(de)(de)判斷優(you)質(zhi)(zhi)紅(hong)(hong)(hong)(hong)(hong)景(jing)(jing)天(tian)(tian)(tian)，優(you)質(zhi)(zhi)紅(hong)(hong)(hong)(hong)(hong)景(jing)(jing)天(tian)(tian)(tian)一般香味比(bi)較(jiao)(jiao)(jiao)濃(nong)郁，品質(zhi)(zhi)一般的(de)(de)紅(hong)(hong)(hong)(hong)(hong)景(jing)(jing)天(tian)(tian)(tian)則(ze)比(bi)較(jiao)(jiao)(jiao)淡(dan)。