Subshrubs, monoecious, without stinging hairs. Leaves alternate, distichous; stipules free; blade pinnately veined. Inflorescences bisexual, sessile, subcapitate glomerules with (sub)sessile flowers. Staminate flowers with 4, connate tepals; stamens 4. Pistillate flowers without perianth; stigma filiform, persistent. Fruit an achene.