Annual, ± erect, 10-150 mm tall. Leaves alternate, petiolate, upper subsessile, oblanceolate to elliptic, apex subacute to obtuse, mucronate. Flowerheads disciform, pedunculate to almost sessile, corymbosely arranged at branch tips; involucral bracts white, occasionally tinted reddish, tips obtuse to subacute; female florets mostly at least twice as many as bisexual florets. Pappus of barbellate bristles.
Like T. tenellum but bracts acute and female flowers twice as many as hermaphrodite ones.