Trees, shrubs or vines, without latex; leaves alternate; heads discoid, 1–40 florets; involucre corymbose to paniculate, bracts multiseriate, subimbricate, margins not hyaline; receptacle epaleate, plane; florets isomorphic, bisexual, corollas whitish, actinomorphic, tubular-fun- nelform, deeply 5-lobed, the lobes completely coiled or only near the apex; anther apical appendages acuminate, thecae with spurs (calcarate) with long, smooth to some- times papillose tails (caudate); pollen prolate, minutely spinulose; styles thick, glabrous, shallowly divided, apex rounded to shortly acute, branches dorsally smooth to slightly rugulose at the apex, never reflexed; achenes glabrous to weakly puberulent; pappus of scabrid bristles, capillary to somewhat paleaceous, the innermost slightly apically broadened and longer.

Diagnostic Features

Heads discoid; pappus showy, whitish, yellowish or reddish with ca. 100 capillary bris- tles in 4–5 series; florets actinomorphic, white with co- rolla lobes rolled; and styles glabrous, shallowly divided, apex rounded to shortly acute.

Geographic distribution

Five species are endemic to Brazil and one is endemic to French Guiana.