Plants up to 60 cm tall, pubescent. Roots fusiform. Leaves 1-2-pinnate; pinnae linear to lanceolate; margins regularly serrate. Involucral bracts lacking. Rays 7-10, unequal. Involucel of 5 lanceolate bractlets with long, white marginal hairs; apex acuminate. Petals white. Fruit cylindrical, c. 8 mm long; stylopodium conical; styles short; ridges conspicuous; furrows 1-vittate. Inner seed face deeply sulcate.