Perennial erect rosette-forming herbs with woody rootstock bearing many adventitious roots, scapose or escapose. Leaves simple, radical, conspicuously white-felted beneath. Capitula solitary, heterogamous, radiate with yellow florets; involucre hemispherical, phyllaries multiseriate, imbricate; receptacle flat or convex, naked or shortly fringed with scales resembling those of the pappus. Ray florets pistillate; disc florets hermaphrodite, 5-lobed. Anthers united, with sagittate bases and ovate, obtuse apical appendages. Style branches patent with rounded tips. Achenes turbinate; pappus of few to many free or partially united membranous scales.