Annual to biennial, prostrate, herbaceous, weakly succulent plants, with fibrous roots, without adventitious roots along stems and branches, not mat-forming. Stems 2-4 mm diam., terete, epidermis with conspicuous mesomorphic, rounded bladder cells. Leaves flattened, slightly channelled, linear to narrowly oblong, 12-15 x 1.5-6.0 mm, dirty green often tinged red, decussate below becoming alternate in the inflorescences, epidermis with conspicuous mesomorphic, rounded bladder cells, without central water-storing tissue. Flowers in cymes, to 25 mm diam.; receptacle terete; petaloid staminodes cream to white, or white with a tinge of pink towards tips; sepals shortly connate; petaloid staminodes narrowly lanceolate, free; filamentous staminodes absent; stamens free, relatively numerous (more than 25), 7 mm long; stigmas 5, 8 mm long. Fruits 5-locular, closed fruits 6-8 mm diam., valve wings inflexed and fused in pairs. Seeds D-shaped, 1.0 x 0.8 mm, dark brown with rough testa.
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