Perennial 2-3 m tall. Stem striate, glabrescent or with prickles. Middle and upper cauline leaves usually entire, 10-18 cm long, 3-6.5 cm broad, sparsely pubescent. Flowering heads few, subglobose, 2.5-4.5 cm broad. Involucral bracts lanceolate, leafy than the receptacular ones. Receptacular bracts linear to ± navicular, c. 5.5 mm long. Flowers cream-white, all alike, larger than the receptacular bracts. Calyx substipitate, 4-lobed. Corolla tube c. 1 cm long, lobes obtuse. Involucel sub-quadrangular, glabrous, elongated, ±4.5 mm long.