唐(tang)古(gu)紅景天(Rhodiola tangutica (Maxim.) S. H. Fu),是(shi)景天科(ke)紅景天屬的植(zhi)物(wu),為中國(guo)的特有植(zhi)物(wu)。產(chan)四川、青海(hai)、甘肅、寧(ning)夏。
唐古紅景天(tian)生長于(yu)海拔2000-4700米的高山石縫(feng)中或近水(shui)邊。
唐古紅(hong)景(jing)天產自四(si)川、青海、甘肅、寧(ning)夏(xia)(xia)。模式標本采(cai)自寧(ning)夏(xia)(xia)。與原(yuan)變種(zhong)的區別,花雌雄異株(zhu),葉狹線形。原(yuan)變種(zhong)產阿爾太(tai),我們(men)尚未采(cai)到(dao)類似標本。
多年生(sheng)草(cao)本。主根粗長(chang)(chang)(chang)(chang)(chang)(chang),分枝;根頸沒有(you)(you)殘留老(lao)枝莖,或(huo)(huo)有(you)(you)少數殘留,先(xian)(xian)(xian)端(duan)(duan)被(bei)三角形(xing)(xing)(xing)鱗片。雌雄異株。雄株花(hua)(hua)(hua)莖干后(hou)稻桿色(se)(se)或(huo)(huo)老(lao)后(hou)棕褐色(se)(se),高10-17厘米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),直徑1.5-2.5毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)。葉線(xian)形(xing)(xing)(xing),長(chang)(chang)(chang)(chang)(chang)(chang)1-1.5厘米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)不(bu)及1毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),先(xian)(xian)(xian)端(duan)(duan)鈍(dun)(dun)(dun)漸尖(jian),無(wu)柄。花(hua)(hua)(hua)序(xu)(xu)(xu)緊(jin)密,傘房狀,花(hua)(hua)(hua)序(xu)(xu)(xu)下有(you)(you)苞葉;萼片5,線(xian)狀長(chang)(chang)(chang)(chang)(chang)(chang)圓(yuan)形(xing)(xing)(xing),長(chang)(chang)(chang)(chang)(chang)(chang)2-3毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)0.5-0.6毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),先(xian)(xian)(xian)端(duan)(duan)鈍(dun)(dun)(dun);花(hua)(hua)(hua)瓣(ban)5,干后(hou)似為粉(fen)紅色(se)(se),長(chang)(chang)(chang)(chang)(chang)(chang)圓(yuan)狀披(pi)針(zhen)(zhen)形(xing)(xing)(xing),長(chang)(chang)(chang)(chang)(chang)(chang)4毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)0.8毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),先(xian)(xian)(xian)端(duan)(duan)鈍(dun)(dun)(dun)漸尖(jian);雄蕊10,對瓣(ban)的長(chang)(chang)(chang)(chang)(chang)(chang)2.5毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),在基部上1.5毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)著生(sheng),對萼的長(chang)(chang)(chang)(chang)(chang)(chang)4.5毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),鱗片5,四方形(xing)(xing)(xing),長(chang)(chang)(chang)(chang)(chang)(chang)0.4毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)0.5毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),先(xian)(xian)(xian)端(duan)(duan)有(you)(you)微缺;心皮5,狹披(pi)針(zhen)(zhen)形(xing)(xing)(xing),長(chang)(chang)(chang)(chang)(chang)(chang)2.5毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),不(bu)育。雌株花(hua)(hua)(hua)莖果(guo)時高15-30厘米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),直徑3毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),棕褐色(se)(se)。葉線(xian)形(xing)(xing)(xing),長(chang)(chang)(chang)(chang)(chang)(chang)8-13毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)1毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),先(xian)(xian)(xian)端(duan)(duan)鈍(dun)(dun)(dun)漸尖(jian)。花(hua)(hua)(hua)序(xu)(xu)(xu)傘房狀,果(guo)時倒三角形(xing)(xing)(xing),長(chang)(chang)(chang)(chang)(chang)(chang)寬(kuan)各5厘米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi);萼片5,線(xian)狀長(chang)(chang)(chang)(chang)(chang)(chang)圓(yuan)形(xing)(xing)(xing),長(chang)(chang)(chang)(chang)(chang)(chang)3-3.5毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)0.5-0.7毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),鈍(dun)(dun)(dun);花(hua)(hua)(hua)瓣(ban)5,長(chang)(chang)(chang)(chang)(chang)(chang)圓(yuan)狀披(pi)針(zhen)(zhen)形(xing)(xing)(xing),長(chang)(chang)(chang)(chang)(chang)(chang)5毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)1-1.2毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),先(xian)(xian)(xian)端(duan)(duan)鈍(dun)(dun)(dun)漸尖(jian);鱗片5,橫長(chang)(chang)(chang)(chang)(chang)(chang)方形(xing)(xing)(xing),長(chang)(chang)(chang)(chang)(chang)(chang)0.5毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)0.7毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),先(xian)(xian)(xian)端(duan)(duan)有(you)(you)微缺;蓇葖(tu)5,直立,狹披(pi)針(zhen)(zhen)形(xing)(xing)(xing),長(chang)(chang)(chang)(chang)(chang)(chang)達1厘米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),喙短(duan),長(chang)(chang)(chang)(chang)(chang)(chang)1毫(hao)(hao)(hao)(hao)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi),直立或(huo)(huo)稍外彎。花(hua)(hua)(hua)期5-8月,果(guo)期8月。
醫藥(yao):主軸藥(yao)用(yong),有利肺、退燒之效(青海(hai))。
醫(yi)藥:根、莖、花(hua)(紅景(jing)天):澀,寒。退燒,利肺。用于肺熱咳喘,神經麻(ma)痹癥(zheng)。
列入中國(guo)(guo)《國(guo)(guo)家(jia)二級保(bao)護(hu)(hu)植物名(ming)錄》;列入《世(shi)界自然保(bao)護(hu)(hu)聯盟瀕(bin)危物種紅(hong)色名(ming)錄》(IUCN)——易(yi)危(VU)。
一般中國產定名名為Rhodiola algida (Ledeb.) Fisch. et Mey.的,編者疑(yi)為本變種(zhong)或其他種(zhong)。