C. dichotoma

C. dichotoma may refer to:
 * Callicarpa dichotoma, the purple beautyberry or early amethyst, a plant species
 * Caulerpa dichotoma, a green alga species
 * Ceropegia dichotoma, the cardoncillo, a flowering plant species endemic to the Canary Islands
 * Clidemia dichotoma, a plant species in the genus Clidemia
 * Cordia dichotoma, the fragrant manjack or the bird lime tree, a plant species