ANNALES BOTANICI FENNICI, cilt.48, sa.6, ss.503-506, 2011 (SCI-Expanded)
Cirsium yildizianum Arabaci & Dirmenci sp. nova (Asteraceae: Cynareae) is described from East Anatolia, Turkey. It belongs to the section Epitrachys and is morphologically close to C. macrobotrys and C. turkestanicum s. lato. It differs from them mainly in its habit, distinctly pedunculate inflorescence, capitula number and the features of the phyllaries.