perennial herb, stem erect or sub-scandent. Leaves alternate, lanceolate.
Flowers in terminal or axillary panicles of second cymes, bracts minute. Sepals
oblong. Petals free, ovate. Stamens 6, all fertile of 5 fertile and one
obsolete, filaments naked. Ovary 2-celed with solitary ovule in each cell.
Fruit a compressed or didymous, loculicidal, 2-celled capsule, pericarp
crustaceous, shining. Seed solitary in each cell, hemispherical.