Herbs, annual, 6.5-35 cm tall. Stems solitary or fascicled, robust, rarely slender, branched, sparsely to densely white villous or pubescent. Leaves sessile, blade ovate, obovate-oblong-spatulate, or oblong, surfaces sparsely villous, sometimes glabrescent or glabrate, veins densely villous-ciliate; mid cauline 3-6 × 1.5-3 cm, pinnate, rarely lyrate-pinnatilobate, sometimes unlobed, lateral lobes 1-3-paired, spatulate or broadly spatulate, base auriculate-clasping, margin coarsely crenate-serrate, densely or sparsely white shortly hairy. Capitula globose, 3-5 mm in diam., few or numerous in lax to dense corymbiform or paniculate-corymbiform synflorescences; peduncles slightly robust, puberulent or glabrate. Phyllaries 2-or 3-seriate, oblong, 1-1.5 mm, margin denticulate. Receptacle globose, apex flat. Marginal female florets many seriate, white, corolla ovoid or urceolate, 0.5-0.7 mm, 2-or 3-lobed; disk florets few, yellow-green, 0.8-0.9 mm, tube very short, limb funnelform, 4-or 5-lobed. Achenes straw-colored, obovoid, compressed, glabrous. Pappus absent, or of disk florets sometimes with 1 or 2 fine bristles. Fl. and fr. year-round.
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