Shrubs to small trees, stellate pubescent to sub-lepidote. Leaves petiolate, elliptical, unlobed to lobulate, trifoliate, or pinnatifid (small as in C. bicolor, or large as in C. vitifolium). Flowers solitary or paired or in subumbel-like inflorescences. Epicalyx absent. Calyx campanulate, lobes entire, costae absent. Corollas lavender, purple or white, twice the length of the calyx or more. Staminal column apically staminiferous with laminar filaments. Style branches 5-10, flattened, clavate, stigmas bilaterally decurrent. Fruits hard, schizocarpic. Mericarps 5-10, apically aristate or horned, 3-6-seeded, loculicidally and septicidally dehiscent. Endoglossum absent.Seeds smooth.