Mesembryanthemum noctiflorum L.

Large, succulent shrub, up to 1 m tall. Leaves almost cylindrical, up to 50 mm long, 7 mm diam. Flowers in dichasia, white, suffused with various shades of pink, red, salmon, copper or yellow, opening at dusk, closing in morning or sometimes at night, older flowers may remain open. Fruit 4-locular, lower part slender, upper part conical or hemispherical, valves sometimes not closing again completely once open.