Cirsium arvense subsp. arvense |
Cirsium MILLER |
C. arvense (L.) Scop., Fl. Carn. ed. 2, 2:126 (1772). Many-stemmed, dioecious perennial, 20-100 cm, with adventitious shoots from deep wide-creeping roots. Stems unwinged, usually branched, glabrous to floccose-arachnoid. Median cauline leaves sometimes shortly decurrent, ovate to oblong, entire to pinnatisect, with weak marginal spines 1-5 mm, without setae on upper surface, glabrous to sparsely floccose-arachnoid above; glabrous to tomentose below. Involucral leaves absent. Involucres obovoid-hemispherical, solitary to c. 11 on each branch; erect, 10-25 mm. Phyllaries -9-seriate, sparsely arachnoid, with prominent vitta; median 4-10 mm incl. 0.5x0.1 mm apical spine. Corollas light purple, 14-20 mm. Achenes 2.5-3.5 mm. Pappus 21-35 mm. Fl. (5-)6-9(-J0). Roadsides, riverbanks, ditches, pastures, cultivated land, wheat and cornfields, tea plantations, steppe, Quercus infectoria-Q. castanea (sic) wood, 15-2500 m. 1. Leaves ± glabrous above and below subsp. arvense 1. Leaves tomentose below, usually sparsely arachnoid above subsp. vestitum subsp. arvense, Syn: Serratula arvensis L., Sp. Pl. 820 (1753); S. setosa Willd., Sp. Pl. 3:1664 (1803); Cirsium setosum (Willd.) Bieb., Fl. Taur.-Cauc. 3:560 (1819); Breea arvensis (L.) Less., Syn. Gen. Comp. 10 (1832); Cephalonoplos arvensis (L.) Fourr., Cat. Pl. Rhone I11 (1869); Cirsium arvense (L.) Scop. var. setosum (Willd.) Kom., Fl. Manch. 3:749 (1907); C. arvense (L.) Scop. subsp. setosum (Willd.) Iljin, Fl. Yugo-Vost. SSSR 6:408 (1936). Described from Sweden (Hb. Linn. 965/19, photo!). Collections from Turkey have leaves entire or Iobed to half their width, with weak spines. They may be referred to var. mite Wimmer & Grab., Fl. Siles. 2, 2:292 (1829). A1(E) Edirne: Ipsala to Enez, bank of Meric river, A.Baytop (ISTE 15768)! A2(E) Istanbul: Vigne Feuerli, Thérapia (Tarabya), Azn. 1281! A3 Bolu: Abant, 1350 m, A.&T.Baytop (ISTE 18416)! A5 Samsun: Orman Işletme fields, Bafra, 30 m, Tobey 397! A7 Giresun: 52 km S. of Giresun, ascent of Giresun Da., M. & D.Zohary 192/3! A8 Çoruh: Şavval Tepe above Murgul, 1100 m, D. 32379! A9 Kars: Yağmurlu Da. above Karaurgan, 2100 m, D. 32611! B10? Kars: Iğdir, Yaci köyü, 950 m, Oğuz & Yildi (EGE 6612)! Throughout Europe, Caucasus, Iran, Afghanistan, N. Asia, N. America. |