栏目

黑山寒蓬Psychrogeton nigromontanus (Boiss. et Buhse) Griers.

黑山寒蓬Psychrogeton nigromontanus (Boiss. et Buhse) Griers.

科名:菊科 Compositae

属名:寒蓬属 Psychrogeton

《中国植物志》第74卷294页
  2. 黑山寒蓬 图版73: 1-3
  Psychrogeton nigromontanus (Boiss. et Buhse) Griers. in Not. Bot. Gard. Edinb. 27: 144. 1967; Ling et Y. L. Chen, l. c. 11: 428. 1973——Erigeron nigromontanus Boiss. et Buhse in Nou. Mem Soc. Mosc. 12: 114. 1860. non M. Pop. 1940; Botsch. in Not. Syst. Inst. Bot. Ac. Sc. URSS. 16: 385. 1954, et Fl. URSS. 25: 282. 1959.——Conyza iliensis Trautv. in Bull. Soc. Nat. Mosc. 39: 342. 1866.——Brachyactis iliensis Rupr. in Mem. Acad. St. Petersb. ser. 7, 1, 4: 51. 1869.——Erigeron kaszachstanicus Serg. сист. зам. герб. унив. 1, 2: 16. 1949.
  一年生或二年生草本,根垂直或斜升,具纤维状根。茎直立,高15-55厘米,或更高淡灰绿色,具条纹,上部有圆锥状分枝,全株被密或疏灰白色短柔毛和近无柄腺毛。叶密集,基部叶花期常枯萎,下部叶倒卵形或倒披针形,长达8厘米,宽1.7-2.5厘米,顶端尖,基部渐狭成长柄,全缘或具疏尖齿,中部叶与下部叶同形,无柄且半抱茎,上部叶渐小,全缘,全部叶两面密被灰白色短柔毛,杂有近无柄腺毛。头状花序小,径0.7-1.0厘米,通常数个至多数在茎枝端排成伞房状圆锥花序;花序梗细,长0.5-1厘米;总苞半球形,总苞片绿色,2-3层,线状披针形,近等长,长约4毫米,宽0.5毫米,顶端渐尖,边缘干膜质,背面被密短柔毛和腺毛;雌花多数,花冠细管状,无色,长1.7-2毫米,上端多少斜切,无齿,被短微毛;两性花6-12个,花冠管状,无色,长约3.5毫米,管部中部被短毛,檐部漏斗状,裂片卵状披针形,顶端被微毛;瘦果仅雌花结实,倒披针形,长1.8-2毫米,宽约0.5毫米,压扁,被多少贴生的短柔毛和腺毛;两性花的瘦果线形,中空;冠毛白色,2层,外层少数,极短,内层18-24个。糙毛状,长3-4.5毫米。花期7-9月。
  产于我国新疆北部(和丰、清河、阿勒泰)。伊朗、伊拉克,土耳其、苏联高加索及中亚地区也有分布。生于亚高山草地,海拔1200-1500米。
形态特征:一年生或二年生草本,根垂直或斜升,具纤维状根。茎直立,高15—55厘米,或更高,淡灰绿色,具条纹,上部有圆锥状分枝,全株被密或疏灰白色短柔毛和近无柄腺毛。叶密集,基部叶花期常枯萎,下部叶倒卵形或倒披针形,长达8厘米,宽1.7—2.5厘米,顶端尖,基部渐狭成长柄,全缘或具疏尖齿,中部叶与下部叶同形,无柄且半抱茎,上部叶渐小,全缘,全部叶两面密被灰白色短柔毛,杂有近无柄腺毛。头状花序小,径0.7—1.O厘米,通常数个至多数在茎枝端排成伞房状圆锥花序;花序梗细,长0.5—1厘米;总苞半球形,总苞片绿色,2—3层,线状披针形,近等长,长约4毫米,宽o.5毫米,顶端渐尖,边缘干膜质,背面被密短柔毛和腺毛;雌花多数,花冠细管状,无色,长1.7—2毫米,上端多少斜切,无齿,被短微毛;两性花6—12个,花冠管状,无色,长约3.5毫米,管部中部被短毛,檐部漏斗状,裂片卵状披针形,顶端被微毛;瘦果仅雌花结实,倒披针形,长1.8—2毫米,宽约o.5毫米,压扁,被多少贴生的短柔毛和腺毛;两性花的瘦果线形,中空,冠毛白色,2层,外层少数,极短,内层18—24个。糙毛状,长3—4.5毫米。花期7—9月。
产地分布:产于我国新疆北部(和丰、清河、阿勒泰)。伊朗、伊拉克、土耳其、苏联高加索及中亚地区也有分布。生于亚高山草地,海拔1200—1500米。
参考文献:Psychrogetonnlgromontanus(Boiss.EtBuhse)Griers.InNot.Bot.Gard.Edinb.27:144.1967;LingetY.1.Chen,1.C.11:428.1973--Erige·ronnigromontanusBoiss.EtBuhseinNou.MemSoc.Mosc.12:114.1860.NonM.Pop·1940;Bptsch.InNot.Syst,Inst.Bot.Ac。Sc.URSS.16:385.1954,etF1.URSS25:282.1959.—--ConyzailiensisTrautv.InBull.Soc.Nat.Mosc.39:342.1866.——BrachyactisiliensisRupr.InMem.Acad.St.P6tersb.Ser.7,14:51,1869,——-ErigeronkaszachstanicusSerg.CHCT,3aM.Rep6.yHnB.1,2;16.1949.

《Flora of China》 Vol. 20-21 (2011)
2. Psychrogeton nigromontanus (Boissier & Buhse) Grierson, Notes Roy. Bot. Gard. Edinburgh. 27: 144. 1967.
黑山寒蓬 hei shan han peng Erigeron nigromontanus Boissier & Buhse, Nouv. Mém. Soc. Imp. Naturalistes Moscou 12: 114. 1860; Brachyactis iliensis Ruprecht; Conyza iliensis Trautvetter; E. kazachstanicus Sergievskaya.
Herbs, annual or biennial, 1-55 cm tall or more; taproots vertical or ascending. Stems erect, branched above, densely leafy, grayish, densely villous-pilose, short-stipitate glandular. Leaves densely villous-pilose, short-stipitate glandular, basal withered at anthesis, petiolate, petiole base clasping, blade spatulate to oblong; lower cauline long petiolate, blade obovate to oblanceolate, ca. 8 × 2.5 cm, base attenuate, margin entire or remotely serrulate, apex acute; mid cauline blade oblanceolate to lanceolate, ca. 3 × 0.75 cm, margin entire or remotely 1- or 2-serrulate per side; upper on branches reduced. Capitula 0.7-1 cm wide, usually numerous, in corymbose-paniculiform synflorescences; peduncles thin, 0.5-1 cm. Involucre campanulate; phyllaries subequal, 2- or 3-seriate, green along midvein, lanceolate to linear-lanceolate, ca. 4 × 0.5 mm, abaxially densely villous-pilose, short-stipitate glandular, margin scarious, apex acuminate. Female florets numerous, filiform, 1.75-2 mm, hairy, lamina ± obliquely cut; disk florets 6-12, ca. 3.5 mm, funnelform, lobes lanceolate, apex hairy. Achenes tan, oblanceoloid, ca. 2 × 0.5 mm, strigose. Pappus 1-seriate, sometimes also short outer series present, very short, of 20-24 barbellate bristles, 3-4.5 mm. Fl. Jul-Sep.Subalpine meadows; 1200-1500 m. N Xinjiang [Afghanistan, Kazakhstan, Kyrgyzstan; SW Asia (Caucasus, Iran, Iraq, Turkey)].

TOP