There are about nine greenish bracteoles and sepals. The flowers are borne on pedicels that have tiny, sharp bracteoles. The bracteoles and sepals are velutinous (velvety). Bract minute; bracteoles 2, below the calyx. Note that the grouping of the "Tristerix" species with bracteoles remains. Bracts are small, with bracteoles below the calyx, and calyx teeth subequal. Solitary flowers end long stalks with a pair of bracteoles. It may be hooded in bracts and bracteoles. The husks of pecans develop from the bracts and the bracteoles only. There are glabrous, linear to lance-shaped bracteoles long on the pedicel. The husks of walnuts develop from the bracts, bracteoles, and sepals, or sepals only. The bracteoles and sepals are smooth (glabrous) on the outside. The flowers are mostly white, with bracts and bracteoles. The individual flowers are sessile and may be with or without bracteoles. The flowers are normally inconspicuous, in spike-like inflorescences without bracteoles.