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  • Flora
  • Flora of North America, Barneby's thistle, Cirsium barnebyi S. L. Welsh & Neese, Biota of North America Program 2014 county distribution map Welsh, Stanley Larson, & Neese, Elizabeth C. 1981. (wikipedia.org)
  • After consulting with A. Cronquist and studying his manuscript treatment of Cirsium for the Intermountain Flora , D. J. Keil and C. E. Turner (1993) also accepted a broadly construed C. scariosum . (swbiodiversity.org)
  • arizonicum
  • corymbulosa False Boneset Brickellia floribunda Chihuahuan Brickellbush Brickellia grandiflora Tassel Flower *Brickellia lemmonii Lemmon's Brickellbush Brickellia rusbyi Rusby's Brickellbush Brickellia venosa Veiny Brickellbush Brickelliastrum fendleri Fendler's Brickellbush Carminatia tenuiflora Plumeweed Carpochaete bigelovii Carpochaete Centaurea solstitialis Yellow Star Thistle Centaurea stoebe Spotted Knapweed Chaetopappa ericoides Baby Aster Cichorium intybus Chickory Cirsium arizonicum var. (wnmu.edu)
  • widely
  • Cirsium undulatum is widely distributed in the wstern half of North America from the dry plains and plateaus of the Pacific Northwest eastward across the Great Plains to Manitoba and the Dakotas and south to Texas, New Mexico, and northwestern Mexico. (vplants.org)
  • The name Cirsium utahense has been widely applied in the past to plants that are here recognized as C. inamoenum . (efloras.org)
  • Howell
  • J. T. Howell (1960b) reported that C. undulatum was suspected to hybridize with C. brevifolium in the Pacific Northwest. (vplants.org)
  • Flora of Nort
  • Flora of North America, Barneby's thistle, Cirsium barnebyi S. L. Welsh & Neese, Biota of North America Program 2014 county distribution map Welsh, Stanley Larson, & Neese, Elizabeth C. 1981. (wikipedia.org)