Annual or perennial herbs with erect leafy stems. Leaves opposite, sessile or petiolate, simple, entire to serrate. Inflorescence of heads in cymose panicles. Capitula homogamous, hemispherical; involucral bracts herbaceous, equal to subequal, ±2-seriate, imbricate, ±free at base; receptacle convex, naked. Disc florets bisexual; corolla narrowly funnelform, 5-lobed, white to pale pink, shortly stalked-glandular externally. Achenes narrowly cylindrical, (4-or) 5-ribbed, glanduliferous between ribs. Pappus absent.
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