白(bai)花蒲公英(ying)(Taraxacum pseudo- albidum Kitag.)菊科蒲公英(ying)屬植物,多(duo)年生草本,葉(xie)線(xian)狀披(pi)針(zhen)形,花葶1至數個,長(chang)2-6厘(li)米,瘦果(guo)倒卵狀長(chang)圓形花果(guo)期6-8月。
主要(yao)分布于中國甘(gan)肅(su)西(xi)部(阿(a)克(ke)塞)、青海(hai)、新疆、西(xi)藏等(deng)(deng)省(sheng)區,以及印度西(xi)北(bei)部、伊(yi)朗、巴基斯(si)坦、俄(e)羅斯(si)等(deng)(deng)國。
白(bai)花(hua)蒲(pu)(pu)(pu)(pu)公(gong)(gong)(gong)英(ying)(ying)(ying)種(zhong)的(de)(de)界限(xian)爭議較多。《蘇聯植物(wu)志》將亞(ya)洲(zhou)蒲(pu)(pu)(pu)(pu)公(gong)(gong)(gong)英(ying)(ying)(ying)T. asiaticum Dahlst.和T. cuspidatum Dahlst. 2種(zhong)歸在(zai)白(bai)花(hua)蒲(pu)(pu)(pu)(pu)公(gong)(gong)(gong)英(ying)(ying)(ying)中。盡(jin)管上述2種(zhong)有時花(hua)為(wei)白(bai)色(se),但(dan)該2種(zhong)外(wai)(wai)層總(zong)苞片先端有明顯的(de)(de)突起(qi)或小(xiao)角,瘦果(guo)喙纖細,與(yu)白(bai)花(hua)蒲(pu)(pu)(pu)(pu)公(gong)(gong)(gong)英(ying)(ying)(ying)具明顯的(de)(de)區別(bie),因(yin)而恢復亞(ya)洲(zhou)蒲(pu)(pu)(pu)(pu)公(gong)(gong)(gong)英(ying)(ying)(ying)種(zhong),并(bing)將T. cuspidatum Dahlst.歸在(zai)亞(ya)洲(zhou)蒲(pu)(pu)(pu)(pu)公(gong)(gong)(gong)英(ying)(ying)(ying)內;另外(wai)(wai)《西藏植物(wu)志》將粉(fen)綠蒲(pu)(pu)(pu)(pu)公(gong)(gong)(gong)英(ying)(ying)(ying)T. dealbatum Hand. -Mazz., T. kawaguchii Kitam., T. staticifolium V. Soest及T. bhutanicum V. Soest4種(zhong)歸在(zai)白(bai)花(hua)蒲(pu)(pu)(pu)(pu)公(gong)(gong)(gong)英(ying)(ying)(ying)中。此4種(zhong)舌狀花(hua)均為(wei)黃色(se),且(qie)瘦果(guo)頂端喙纖細等特點,不應(ying)歸在(zai)白(bai)花(hua)蒲(pu)(pu)(pu)(pu)公(gong)(gong)(gong)英(ying)(ying)(ying)中,除(chu)粉(fen)綠蒲(pu)(pu)(pu)(pu)公(gong)(gong)(gong)英(ying)(ying)(ying)恢復原名外(wai)(wai),后3種(zhong)均歸在(zai)小(xiao)花(hua)蒲(pu)(pu)(pu)(pu)公(gong)(gong)(gong)英(ying)(ying)(ying)T.parvulum DC.中。
生(sheng)于林(lin)綠、向陽地。耐寒,喜陽,亦耐干旱;以及海拔2500-6000米,山坡(po)濕潤(run)草地、溝谷、河灘草地以及沼(zhao)澤草甸處。
主產甘(gan)肅(su)西(xi)部(阿克塞)、青海、新疆、西(xi)藏等(deng)省(sheng)區。印(yin)度西(xi)北(bei)部、伊朗、巴(ba)基(ji)斯坦(tan)、俄羅斯等(deng)國(guo)也有(you)分布(bu)。模式標本產阿爾泰山(shan)區。
葉線狀(zhuang)披針形,近全緣或淺裂,稀半裂,具小齒,長(2-)3-5(-8)厘(li)米,兩面無(wu)毛。
花葶1至數個,長2-6厘米(mi)(mi),I無毛或(huo)(huo)頂端(duan)疏(shu)被蛛絲(si)狀(zhuang)柔毛;頭(tou)狀(zhuang)花序(xu)直(zhi)徑2.5-3厘米(mi)(mi);總(zong)苞(bao)長0.9-1.3厘米(mi)(mi),總(zong)苞(bao)片(pian)綠或(huo)(huo)淡綠色(se)(se),先端(duan)背(bei)(bei)面具小角(jiao)或(huo)(huo)增厚,外層卵狀(zhuang)披針形,稍寬于(yu)至等于(yu)內層,具寬膜質邊緣(yuan);舌(she)狀(zhuang)花白(bai)色(se)(se),稀淡黃色(se)(se),邊緣(yuan)花舌(she)片(pian)背(bei)(bei)面有暗色(se)(se)條紋,柱頭(tou)干時黑(hei)色(se)(se)。
瘦(shou)果倒卵狀長圓形(xing),枯麥稈黃、淡(dan)褐或灰(hui)褐色(se),長4毫米(mi)(mi),上部(bu)1/4具小刺(ci),頂(ding)端漸收縮成長0.5-1.2毫米(mi)(mi)喙(hui)基(ji),喙(hui)較(jiao)粗,長3-6毫米(mi)(mi):冠毛(mao)長4-5毫米(mi)(mi),帶淡(dan)紅色(se),稀(xi)污白(bai)色(se)。
播種、分株繁殖(zhi)。
布(bu)置花境或點綴草地。
多用(yong)作綴花草坪(ping),花期早,花色鮮亮(liang),單(dan)獨種植或與紫花花地丁等早春開花植物(wu)搭配使用(yong)效(xiao)果均(jun)佳。也可(ke)做花境和(he)花帶(dai)應用(yong)。根和(he)全草可(ke)入藥。
始(shi)載于《中藥(yao)志(zhi)》中國高等植物圖(tu)鑒、《青(qing)海(hai)野生藥(yao)用植物》。