Centaurea daneshvarii (Asteraceae, Cardueae), a New Species from Kermanshah Province, W Iran

Centaurea daneshvarii Negaresh & Oreizi sp. nova (Asteraceae) is described and illustrated from Kermanshah Province, W Iran. It resembles C. gigantea subsp. gigantea, but differs from it by having lanceolate basal leaves, smaller median and upper cauline leaves, shorter spine, longer central florets, with few, very inconspicuous and not radiant peripheral florets, longer achenes, and bristles of inner rows slightly longer than others on the pappus.