Herbs annual, biennial, or perennial. Leaves alternate or fasciculate, linear, entire. Flowers borne in terminal spikes, whitish. Sepals 4-parted. Petals 2, free or connate at base. Stamens 3-8, free or connate at base; disc absent. Ovary 4-angled; placentas 4, parietal; ovules numerous. Capsule angled. Seeds numerous.
Herbs, annual [biennial], or perennial. Stems erect to ascending, branched basally. Leaves not rosulate; alternate (sometimes fasciculate); petiolate, petiole shorter than blade, winged; blade margins usually entire, sometimes toothed near base, teeth 1-2, hyaline. Inflorescences usually dense spikes (or spikelke racemes). Pedicels absent or nearly so. Flowers: sepals persistent, 2-4(-5), distinct, equal; petals 2-3[-5], distinct or basally connate, margins entire or shallowly incised; intrastaminal nectary-discs absent; stamens 3-4[-10]; filaments persistent, distinct or basally connate; ovaries 4(-5)-carpelled. Capsules erect, angled, subglobose to obovoid, walls membranous. Seeds smooth (glossy). x = 15.
|Whitepuff [Greek oligos, few, and meros, part, alluding to fewer stamens and petals than in other genera of family]|