in A. von Humboldt et al., Nov. Gen. Sp. 5(fol.): 197.
plate 472. 1822.
Subshrubs or shrubs. Stems erect, not cespitose, with simple, stellate, or glandular hairs, never lepidote, viscid. Leaves: stipules persistent, subulate; blade ovate, unlobed or weakly lobulate, not maplelike, base cordate, margins serrate to subentire, surfaces stellate- and glandular-hairy. Inflorescences axillary, solitary flowers or terminal panicles; involucel absent. Flowers: calyx not accrescent, not inflated, divided nearly to base, shorter than mature fruits and not completely enclosing them, lobes unribbed, lanceolate; corolla yellow; staminal column included; style 6–8-branched; stigmas capitate. Fruits schizocarps but dehiscence imperfect, thus functionally capsular, erect, not inflated, oblate, papery, stellate-hairy; mericarps 6–8, 1-celled, without dorsal spur or endoglossum, lateral walls persistent, apex rounded to apiculate. Seeds 1 per mericarp, usually minutely hairy. x = 7.
Tex., Mexico, West Indies, Central America, South America (Colombia, Ecuador, Peru, Venezuela).
Species 3 (1 in the flora).