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Cypselae truncate at the apex, glabrous to pubescent; pappus of scabrid, simple to barbellate, capillary bristles.
Cypselae glabrous to villose; pappus of plumose to barbellate capillary bristles, widened at the apex.
Cypselae rostrate, slightly constricted to attenuate at the apex, glabrous to pubescent; pappus of plumose, capillary bristles, occasionally barbellate to ciliate.
Leaves caducous; plants flowering in the leafless condition; pappus connate basally, deciduous as a ring, bristles barbellate to plumose Wunderlichia 1b.
Cypselae glabrous, apically tomentose to densely tomentose throughout; pappus of many barbellate to plumose bristles, basally connate, deciduous as a ring, the innermost longer and flattened.