The fruits are achenes; they are long, compressed, with short pappus hairs. The fruit is a cylindrical achene with a pappus of scales. The fruit is an achene with a short, stubby pappus. The fruit is a black achene with a white pappus. The fruit is an achene with a very short pappus. Calyx is represented by scales or reduced to pappus. The achenes have a one-piece rough pappus which opens in dry conditions. The other genera have a pappus of simple unbranched hairs. As with the bracts, the nature of the pappus is an important diagnostic feature. The bristles of the pappus are scabrous, barbellate, or plumose. They are tipped with a pappus of slender bristles. The fruit is a cypsela tipped with a pappus of barbed bristles or scales. The pappus is white with equal length hairs. The pappus is always irregularly crown-shaped. The fruit usually has a pappus of scales.