Asia-Tropical: Philippines (Philippines present), Babuyan Is present, N. Luzon present, Southern Japan present, southern China present
Southern China and southern Japan, in Malesia: Philippines (Babuyan Is. and N. Luzon).
For a fuller synonymy, see Ching 1938 and Iwatsuki 1965. The specific epithet sophoroides is used in most of the older literature. In general aspect this species is similar to C. arida but lacks reduced basal pinnae and glandular hairs; the larger pinnae of C. acuminata are also rather strongly auricled.