Characterized by a compact, more or less globose, head of flowers, with most flowers erect. Leaves oblong, oblanceolate or obovate-spathulate, attenuate into a winged petiole, often red at the base, erose-denticulate margin, rounded apex, often white farinose underneath when young. Scapes 10-30cm, often with farina near the apex supporting a head of blue exannulate or annulate flowers. Bracts numerous, lanceolate and clustered below the head.Distinguished from P. capitata by having the flowers of the capitulum more or less erect (in P. capitata they are pendent). See also P. denticulata. Seems to take an intermediate position between section Denticulata and section Capitatae.