Succulent shrublet, up to 150 mm tall, entirely covered with conspicuous, spiny, flowerless pedicels. Leaves 3-sided. Flowers pink, filamentous staminodes white below, pink above, nectary a ring. Fruit 6-or 7-locular, top as wide as base, valve rims conspicuous, valve wings absent, expanding keels diverging, old fruit bases persistent.