Perennial, annual or biennual herbs. Leaves alternate, woolly or glandular, often discolorous. Capitula disciform, in small loose terminal corymbs; receptacle smooth or honeycombed, epaleate; phyllaries in 3–4 rows, subequal, papery and glossy, yellowish to white to brownish, often with a central unthickened area, stereome usually divided. Outer florets yellow, female, filiform; inner florets hermaphrodite, fewer than the outer, yellow, lobes glandular, anthers short-tailed, style branches truncate. Achenes usually glabrous, with mucilaginous hairs; pappus of barbellate bristles, basally with patent cilia.
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