Annual herbs or suffruticose, 12-50 cm tall; stems 0.7-2.6 mm diam., glabrous to copiously pilose with hairs to 3 mm long. Leaves 2-3 cm long, 0.4-2 cm wide, subentire or rarely serrate, the base obtuse or rarely attenuate, both surfaces glabrate to moderately pilose with hairs to 1 mm long. Inflorescence with peduncles up to 1-5(-10) mm long, 0.1-0.3 mm diam., glabrate to pilose with hairs to 1 mm long. Heads radiate, 3.5-6 mm tall, 6-7 mm diam. at maturity; involucral bracts 3-5 mm long, 1.5-2.5 mm wide, the inner bracts 5 or 6; receptacle 0.5 mm tall, 1 mm diam.; paleas 0.3-1.3 mm long, 0.2-0.3 mm wide, without a midrib; ray florets 3-5, the ligules 2 mm long, 0.4 mm wide, the tube 0.3 mm long, 0.2 mm diam., glabrous to strigillose with hairs up to 0.1 mm long, the style branches 0.5 mm long; disc florets 5-7, the corollas 1 mm diam., the lobes 0.5 mm long and 0.3 mm wide, the throat 1.2 mm long and 0.6 mm diam., the tube 1.2-2 mm long and 0.2 mm diam., the anthers 1 mm long, the style 2 mm long, the ovary
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sterile, cylindrical, 0.5 mm long, 0.2 mm diam. Achenes 2 mm tall, 2 mm wide radially, 1 mm wide laterally. Chromosome number n = 16.