Perianth-segments 5, decreasing in size inwards
Seed compressed-ovoid; endosperm copious.
Inflorescence solitary, sessile, axillary, globular or very shortly ovoid, congested-cymose, bracteate; partial inflorescence basically of ultimate triads of a central fertile and 2 lateral sterile modified flowers formed of bracteoliform processes, but apparently variable and sometimes one modified flower absent or replaced by a second fertile flower; fruiting head possibly falling entire
Low bushy perennial herb with entire alternate leaves
Fruit a thin-walled capsule, rupturing irregularly
Ovary with a single pendulous ovule, depressed-ovoid, glabrous; style short, bifid above with 2 linear stigmatal branches