金佛山(shan)紫菊(ju)分布在四川(南川金佛山(shan))。
金(jin)佛山紫菊是多(duo)年(nian)生(sheng)草本。莖(jing)單(dan)生(sheng),直立,高40-80厘(li)(li)(li)(li)米(mi)(mi)(mi),基部(bu)(bu)直徑4毫米(mi)(mi)(mi),上(shang)部(bu)(bu)狹(xia)圓(yuan)錐(zhui)花(hua)序狀(zhuang)(zhuang)分枝(zhi),分枝(zhi)纖細,光(guang)滑無毛。基生(sheng)葉(xie)(xie)未(wei)見;中下部(bu)(bu)莖(jing)葉(xie)(xie)戟狀(zhuang)(zhuang)三角形(xing),長(chang)(chang)7-9.5厘(li)(li)(li)(li)米(mi)(mi)(mi),寬(kuan)5.5-6厘(li)(li)(li)(li)米(mi)(mi)(mi),邊緣有(you)(you)稀疏小(xiao)(xiao)尖(jian)(jian)(jian)頭或(huo)(huo)無小(xiao)(xiao)尖(jian)(jian)(jian)頭,頂(ding)端(duan)漸(jian)尖(jian)(jian)(jian),基部(bu)(bu)寬(kuan)楔形(xing)或(huo)(huo)幾截形(xing),葉(xie)(xie)柄有(you)(you)短且狹(xia)的(de)(de)翼,長(chang)(chang)達5厘(li)(li)(li)(li)米(mi)(mi)(mi);上(shang)部(bu)(bu)莖(jing)葉(xie)(xie)與中下部(bu)(bu)莖(jing)葉(xie)(xie)同形(xing)但較小(xiao)(xiao)或(huo)(huo)披針形(xing),包括葉(xie)(xie)柄長(chang)(chang)10厘(li)(li)(li)(li)米(mi)(mi)(mi),寬(kuan)2厘(li)(li)(li)(li)米(mi)(mi)(mi),邊緣有(you)(you)稀疏的(de)(de)小(xiao)(xiao)尖(jian)(jian)(jian)頭,或(huo)(huo)上(shang)部(bu)(bu)莖(jing)葉(xie)(xie)不規則菱形(xing),長(chang)(chang)12厘(li)(li)(li)(li)米(mi)(mi)(mi),寬(kuan)約4厘(li)(li)(li)(li)米(mi)(mi)(mi),邊緣有(you)(you)鋸(ju)(ju)齒或(huo)(huo)小(xiao)(xiao)鋸(ju)(ju)齒,齒頂(ding)有(you)(you)小(xiao)(xiao)尖(jian)(jian)(jian)頭;花(hua)序分枝(zhi)上(shang)的(de)(de)葉(xie)(xie)最(zui)小(xiao)(xiao),線(xian)形(xing),長(chang)(chang)1.5-2.5厘(li)(li)(li)(li)米(mi)(mi)(mi),寬(kuan)1.5-2毫米(mi)(mi)(mi),邊緣有(you)(you)不明顯小(xiao)(xiao)尖(jian)(jian)(jian)頭;全(quan)部(bu)(bu)葉(xie)(xie)質地薄,兩面無毛。頭狀(zhuang)(zhuang)花(hua)序多(duo)數,沿莖(jing)排成狹(xia)圓(yuan)錐(zhui)狀(zhuang)(zhuang)花(hua)序。總苞(bao)狹(xia)圓(yuan)柱狀(zhuang)(zhuang),長(chang)(chang)1厘(li)(li)(li)(li)米(mi)(mi)(mi),寬(kuan)2毫米(mi)(mi)(mi);總苞(bao)片3層(ceng),中外層(ceng)短或(huo)(huo)最(zui)短,卵形(xing)或(huo)(huo)披針形(xing),長(chang)(chang)1-2.5毫米(mi)(mi)(mi),寬(kuan)1毫米(mi)(mi)(mi)或(huo)(huo)不足(zu)1毫米(mi)(mi)(mi),頂(ding)端(duan)急尖(jian)(jian)(jian),內層(ceng)長(chang)(chang),長(chang)(chang)橢(tuo)圓(yuan)形(xing),長(chang)(chang)1厘(li)(li)(li)(li)米(mi)(mi)(mi),寬(kuan)1.5毫米(mi)(mi)(mi),頂(ding)端(duan)鈍或(huo)(huo)圓(yuan)形(xing),全(quan)部(bu)(bu)苞(bao)片紫色,外面無毛。舌狀(zhuang)(zhuang)小(xiao)(xiao)花(hua)紫色,5枚。瘦果長(chang)(chang)橢(tuo)圓(yuan)形(xing),紫色,壓扁,長(chang)(chang)5毫米(mi)(mi)(mi),寬(kuan)0.8毫米(mi)(mi)(mi),頂(ding)端(duan)截形(xing),無喙(hui),每面有(you)(you)7條高起的(de)(de)縱肋。冠毛2層(ceng),白(bai)色,長(chang)(chang)7毫米(mi)(mi)(mi),微糙。