分布于中國河南(nan)(nan),江(jiang)蘇,浙江(jiang),安徽,江(jiang)西(xi)(xi),福(fu)建,臺(tai)灣,湖北,湖南(nan)(nan),廣東(dong),貴州(zhou),四川(chuan),云(yun)南(nan)(nan),陜(shan)西(xi)(xi),甘肅,新疆及(ji)西(xi)(xi)藏;生(sheng)于路旁、山(shan)坡、林下(xia)及(ji)草地,海拔500-3600米(mi)。歐、亞兩洲(zhou)及(ji)北非也有(you),北美亦(yi)有(you)引入。模(mo)式標(biao)本采自歐洲(zhou)。
多(duo)(duo)年生草(cao)本(ben)或半灌(guan)木,芳香(xiang);根莖(jing)斜生,其節(jie)(jie)上(shang)具纖細(xi)的須根,多(duo)(duo)少木質。莖(jing)直立或近(jin)(jin)基(ji)部伏地,通常(chang)高(gao)25-60厘米(mi),多(duo)(duo)少帶紫色,四稜形,具倒向或微蜷曲的短(duan)柔毛(mao),多(duo)(duo)數,從根莖(jing)發出(chu),中上(shang)部各節(jie)(jie)有具花(hua)的分枝,下部各節(jie)(jie)有不(bu)育(yu)的短(duan)枝,近(jin)(jin)基(ji)部常(chang)無葉(xie)。
葉具柄(bing),柄(bing)長2-7毫米,腹面(mian)(mian)具槽,背面(mian)(mian)近(jin)圓(yuan)(yuan)形(xing)(xing)(xing),被柔毛(mao)(mao),葉片(pian)卵(luan)圓(yuan)(yuan)形(xing)(xing)(xing)或長圓(yuan)(yuan)狀卵(luan)圓(yuan)(yuan)形(xing)(xing)(xing),長1-4厘米,寬0.4-1.5厘米,先端鈍或稍鈍,基(ji)部寬楔(xie)形(xing)(xing)(xing)至近(jin)圓(yuan)(yuan)形(xing)(xing)(xing)或微(wei)心(xin)形(xing)(xing)(xing),全緣或有遠離的(de)小(xiao)鋸齒,上面(mian)(mian)亮綠色,常帶紫(zi)暈,具不明(ming)顯(xian)的(de)柔毛(mao)(mao)及凹(ao)(ao)陷的(de)腺點,下(xia)面(mian)(mian)淡綠色,明(ming)顯(xian)被柔毛(mao)(mao)及凹(ao)(ao)陷的(de)腺點,側脈(mo)3-5對,與中脈(mo)在上面(mian)(mian)不顯(xian)著,下(xia)面(mian)(mian)多少突出(chu);苞葉大多無柄(bing),常帶紫(zi)色。
花(hua)(hua)(hua)(hua)(hua)序(xu)(xu)呈傘房狀(zhuang)(zhuang)圓(yuan)(yuan)錐花(hua)(hua)(hua)(hua)(hua)序(xu)(xu),開張(zhang),多花(hua)(hua)(hua)(hua)(hua)密集,由多數(shu)長(chang)(chang)(chang)圓(yuan)(yuan)狀(zhuang)(zhuang)在果時多少伸長(chang)(chang)(chang)的(de)(de)小穗狀(zhuang)(zhuang)花(hua)(hua)(hua)(hua)(hua)序(xu)(xu)所組成;苞片(pian)(pian)(pian)長(chang)(chang)(chang)圓(yuan)(yuan)狀(zhuang)(zhuang)倒卵(luan)形(xing)至(zhi)倒卵(luan)形(xing)或(huo)倒披針形(xing),銳(rui)尖,綠色或(huo)帶紫(zi)(zi)暈(yun),長(chang)(chang)(chang)約5毫米(mi)(mi)(mi),具平行脈,全緣(yuan)。花(hua)(hua)(hua)(hua)(hua)萼(e)鐘狀(zhuang)(zhuang),連齒長(chang)(chang)(chang)3毫米(mi)(mi)(mi),外(wai)面(mian)被小硬毛(mao)或(huo)近(jin)(jin)無毛(mao),內面(mian)在喉部(bu)有白(bai)色柔(rou)毛(mao)環(huan),13脈,多少顯著(zhu),萼(e)齒5,三角(jiao)形(xing),等大(da)(da),長(chang)(chang)(chang)0.5毫米(mi)(mi)(mi)。花(hua)(hua)(hua)(hua)(hua)冠(guan)(guan)紫(zi)(zi)紅(hong)、淡紅(hong)至(zhi)白(bai)色,管狀(zhuang)(zhuang)鐘形(xing),長(chang)(chang)(chang)7毫米(mi)(mi)(mi),兩(liang)性(xing)花(hua)(hua)(hua)(hua)(hua)冠(guan)(guan)筒(tong)長(chang)(chang)(chang)5毫米(mi)(mi)(mi),顯著(zhu)超(chao)出(chu)花(hua)(hua)(hua)(hua)(hua)萼(e),而(er)雌性(xing)花(hua)(hua)(hua)(hua)(hua)冠(guan)(guan)筒(tong)短于花(hua)(hua)(hua)(hua)(hua)萼(e),長(chang)(chang)(chang)約3毫米(mi)(mi)(mi),外(wai)面(mian)疏(shu)(shu)被短柔(rou)毛(mao),內面(mian)在喉部(bu)被疏(shu)(shu)短柔(rou)毛(mao),冠(guan)(guan)檐明顯二唇(chun)形(xing),上唇(chun)直立,卵(luan)圓(yuan)(yuan)形(xing),長(chang)(chang)(chang)1.5毫米(mi)(mi)(mi),先(xian)端(duan)2淺(qian)裂(lie)(lie),下(xia)唇(chun)開張(zhang),長(chang)(chang)(chang)2毫米(mi)(mi)(mi),3裂(lie)(lie),中(zhong)(zhong)裂(lie)(lie)片(pian)(pian)(pian)較大(da)(da),側裂(lie)(lie)片(pian)(pian)(pian)較小,均長(chang)(chang)(chang)圓(yuan)(yuan)狀(zhuang)(zhuang)卵(luan)圓(yuan)(yuan)形(xing)。雄(xiong)蕊(rui)(rui)4,在兩(liang)性(xing)花(hua)(hua)(hua)(hua)(hua)中(zhong)(zhong),后對短于上唇(chun),前對略伸出(chu)花(hua)(hua)(hua)(hua)(hua)冠(guan)(guan),在雌性(xing)花(hua)(hua)(hua)(hua)(hua)中(zhong)(zhong),前后對近(jin)(jin)相(xiang)等,內藏,花(hua)(hua)(hua)(hua)(hua)絲絲狀(zhuang)(zhuang),扁平,無毛(mao),花(hua)(hua)(hua)(hua)(hua)藥(yao)卵(luan)圓(yuan)(yuan)形(xing),2室,兩(liang)性(xing)花(hua)(hua)(hua)(hua)(hua)由三角(jiao)狀(zhuang)(zhuang)楔形(xing)的(de)(de)藥(yao)隔(ge)分隔(ge),室叉開,而(er)雌性(xing)花(hua)(hua)(hua)(hua)(hua)中(zhong)(zhong)藥(yao)隔(ge)退化(hua)雄(xiong)蕊(rui)(rui)的(de)(de)藥(yao)室近(jin)(jin)于平行。花(hua)(hua)(hua)(hua)(hua)盤平頂。花(hua)(hua)(hua)(hua)(hua)柱(zhu)略超(chao)出(chu)雄(xiong)蕊(rui)(rui),先(xian)端(duan)不(bu)相(xiang)等2淺(qian)裂(lie)(lie),裂(lie)(lie)片(pian)(pian)(pian)鉆形(xing)。
小堅果卵圓(yuan)形(xing),長約0.6毫米,先(xian)端(duan)圓(yuan),基部驟狹(xia),微(wei)具稜,褐色,無(wu)毛。花期(qi)(qi)7-9月,果期(qi)(qi)10-12月。
喜溫暖濕潤氣候,適應性較強。以向(xiang)陽(yang)、土(tu)層(ceng)深厚、疏松肥沃、排水良好的砂質壤土(tu)栽培為(wei)宜。對土(tu)壤要求(qiu)不(bu)嚴格(ge),一般土(tu)壤都可(ke)以栽培,但(dan)堿土(tu)、沙(sha)土(tu)不(bu)宜栽培。
苗出齊后及時間苗,中(zhong)耕除草(cao),排灌施肥,并(bing)在植物(wu)表面噴施新高(gao)脂(zhi)膜,增強肥效,防(fang)止(zhi)病菌侵(qin)染,提(ti)(ti)高(gao)抗(kang)自然災害能力,提(ti)(ti)高(gao)光合(he)作用效能,保護禾(he)苗茁(zhuo)壯(zhuang)成(cheng)長(chang)。并(bing)適時噴施壯(zhuang)莖(jing)靈使植物(wu)桿莖(jing)粗壯(zhuang)、植株茂(mao)盛。生長(chang)期間每年中(zhong)耕除草(cao)2-3次(ci),并(bing)結合(he)追施人糞尿2-3次(ci)。
直播(bo)法于春季(ji)3月(yue)播(bo)種(zhong)(zhong),將種(zhong)(zhong)子與(yu)細沙混合后(hou),按行株(zhu)距(ju)(ju)25×20厘米開穴播(bo)種(zhong)(zhong)。條播(bo)按行株(zhu)距(ju)(ju)25厘米開條溝,將種(zhong)(zhong)子均勻播(bo)入。播(bo)種(zhong)(zhong)前用新(xin)高脂膜拌種(zhong)(zhong)與(yu)種(zhong)(zhong)衣劑混用,驅(qu)避地下病蟲,隔(ge)離(li)病毒感染,加(jia)強呼吸強度(du),提(ti)高種(zhong)(zhong)子發芽(ya)率(lv)。整地下種(zhong)(zhong)后(hou)再用新(xin)高脂膜600-800倍液噴(pen)施(shi)土壤表面,可保墑防(fang)(fang)水分蒸(zheng)發、防(fang)(fang)曬抗旱、防(fang)(fang)土層板結,窒息和隔(ge)離(li)病蟲源,提(ti)高出苗率(lv)。
苗的病(bing)害(hai)有根腐病(bing)、菌核病(bing),蟲害(hai)有地老(lao)虎(hu)等(deng),栽培過程要注意防治。在收(shou)割后根部經過4-7天傷(shang)流期(qi),愈傷(shang)組織形成期(qi)20天左右,便(bian)開始新芽分化(hua),形成多枝的株叢。傷(shang)流期(qi)至新芽分化(hua)不宜澆(jiao)水,以防爛根。同時,要提(ti)升抗(kang)災害(hai)能(neng)力,減少(shao)農藥化(hua)肥用量,降低(di)殘(can)毒。
藥用
【來源(yuan)】藥材基源(yuan):為唇(chun)形科植物(wu)牛至的全草(cao)。
【性味】味辛(xin);微苦(ku);性涼(liang)。
【功(gong)能(neng)主治】解表;理氣;清暑;利濕。主感冒(mao)發熱;中暑;胸膈脹滿;腹痛吐瀉痢疾;黃疸(dan);水腫(zhong);帶下;小兒疽積;麻疹;皮膚瘙癢;瘡瘍腫(zhong)痛;跌打損傷(shang)。
【用法用量】內服:煎(jian)湯,3-9克,大劑量用至15-30克;或泡(pao)茶。外用:適量,煎(jian)水洗;或鮮品搗敷。
全(quan)草入(ru)藥,可預防流感(gan),治(zhi)中暑(shu)、感(gan)冒、頭(tou)痛身重、腹(fu)(fu)痛、嘔吐、胸膈脹(zhang)滿、氣(qi)阻食(shi)滯(zhi)、小(xiao)兒食(shi)積腹(fu)(fu)脹(zhang)、腹(fu)(fu)瀉(xie)、月經過多、崩漏帶下、皮膚(fu)搔(sao)癢及(ji)水腫等癥(zheng),其散寒發表功用,尤勝于(yu)薄荷(he)。在(zai)云南、貴(gui)州、四川(chuan)三省作香(xiang)薷(ru)收購及(ji)使用。
經濟
全草(cao)又可提芳香油,鮮(xian)莖葉含(han)油0.07-0.2%,干(gan)莖葉含(han)油0.15-4%,油的(de)(de)比重(zhong)(15℃)0.868-0.910,旋光度(20℃)-20°-70°,含(han)醇(chun)(chun)量(以(yi)香草(cao)醇(chun)(chun)計(ji))2-3%,含(han)酚量(以(yi)麝香草(cao)酚計(ji))約含(han)7%,除供調配(pei)香精外,亦用作酒曲配(pei)料。此外它又是很好(hao)的(de)(de)蜜源植(zhi)物。