Habit : An annual dichotomously much-branched herb with stems many from the root, erect, leafy.
Leaves : Sessile, linear or linear-lanceolate, subacute, base acute, floral leaves (bracts) broader at the base and shorter.
Inflorescence and Flowers : Involucres broadly campanulate, subsessile, solitary, glabrous outside, pubescent inside, lobes short, ovate, ciliolate, glands outside, pubescent inside, lobes short, ovate, ciliolate, glands semilunate, horned, filaments pubescent, styles free to the base, shortly bifid at the apex.
Fruits : Capsules with seeds ellipsoid, rounded at the base, grooved down one side, with an arillode at the oblique depressed apex, testa whitish, leprous, rugose or tuberculate.
