Perennial. Leaves 1-4-pinnate. Involucre of divided or entire white margin¬ed bracts. Rays few to many. Involucel of many lanceolate, oval or oblong white margined bractlets, entire or divided. Calyx teeth evident or obsolete. Petals white or light rose coloured. Fruit ellipsoid to oblong, winged; fruit wall usually spongy, papillate or smooth; ridges winged; furrows 1-3-vittate; commissure 2-6-vittate. Inner seed face concave to grooved.