Herbs, annual or perennial. Leaves alternate, simple, entire or variously dentate/lobed. Capitula small, numerous in dense corymbs, disciform or radiate with inconspicuous rays, many-flowered; phyllaries 1–3-seriate, subequal, glandular and pubescent. Florets yellow; ray florets female, 1–many-seriate, with (sometimes without) a short ray, the style with linear branches; disc florets hermaphrodite, rarely functionally male, the upper part of the tube infundibuliform and usually puberulous, 5-lobed, anthers and style included; anthers obtuse at base and appendiculate at the apex; style bifid with broadly triangular and papillose branches. Achenes oblong-obovoid, somewhat compressed, mostly pubescent and often glandular; pappus uniseriate, of slender, barbellate bristles, shorter than the florets.
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