Plants slender, c. 20 cm tall, branched, spreading, pubescent. Leaves tripinnatisect; segments filiform, up to 1 cm long. Involucral bracts lacking. Rays 5-9, 2-4 cm long. Involucel of 5-8 linear, white margined, ciliate bractlets, connate, deflexed. Petals emarginate, outer larger.