Home
Leaves alternate, sometimes radical, densely bristly-setose, hispid or scabrous, sometimes glabrous with bristles on the margins only, the lower surfaces white-felted, rarely only glandular-hairy, linear ± oblanceolate oblong or obovate, entire or ± dentate sometimes pinnately lobed.
Disk-florets hermaphrodite, numerous; corollas yellow infundibuliform; anther bases minutely sagittate; style branches linear; achenes ± ribbed, villous-sericeous; pappus scales 1-or 2-seriate, the outer large and overlapping, the inner when present smaller and stipitate.
Ray-florets uniseriate, neuter; corollas yellow with rays sometimes purplish outside, mostly without staminodes; rays erect strap-shaped, margins becoming inrolled; achenes wanting.
Phyllaries several-seriate, connate forming a ± obconic or cup-shaped involucre; free parts linear, strap-shaped or triangular-lanceolate, bristly or setose-to spinose-ciliate.
Capitula heterogamous and radiate, stalked, or ± sessile and subtended by leaves, solitary and terminal on the stem and branches, sometimes ± racemose or corymbosely arranged.
Annual or perennial herbs, often suffrutescent with annual stems from a woody rootstock, or subshrubs.
Stems and branches ± bristly-setose, sometimes glandular-hairy or glabrous.
Receptacle shallowly or deeply alveolate.
