Perennial, procumbent or straggling, hirsute herb; branched from the base; leaves opposite, pinnatisect, segment few, narrow, hirsute, slightly fleshy, ovate-lanceolate, irregularly; petioles short, prominent; head with very long peduncle, terminal or solitary, yellow, heterogamous; involucral bracts few seriate, outer herbaceous, short, broad, inner longer, membranous, scarious; receptacles flat or convex; ray florets female, fertile, ligulate; disk florets bisexual, fertile, tubular, limbs elongate, 5-fid; anther bases with short, acute auricles; style arms subulate, hairy; achenes silky hairy, turbinate or oblong, brown; pappus of short or long, aristate, feathery bristles.