Decumbent to erect, succulent, annual herb, up to 250 mm tall, prostrate when in flower. Leaves cylindrical, linear, up to 50 mm long, 15 mm diam., smooth. Flowers up to 10 mm diam., white or yellow, petals, staminodes and stamens very few. Fruit 5-locular, valve wings reflexed and fused in pairs.
Salty habitats, along the fog zone of the northern Namib.
Southwestern Angola, Swakopmund, Lüderitz, St. Helena, Azores, Cape Verde and Canary Islands, Mauritania, N Africa, Palestine, Mediterranean Basin, California, and Australia.