Croton has glossy, leathery leaves that are very variable in shape, highly colored and variegated. The leaves can be ovate or linear and variegated with pink, orange, green, brown, yellow and white.
In addition the plant may change color as it matures. The plant produces hardly noticeable star-shaped yellow flowers that in long racemes. The cut stems bleed a sap that is poisonous.
(Watson, L., and Dallwitz, M. J. 1992. The Families of Flowering Plants: Descriptions,Illustrations, Identification, and Information Retrieval.)
(Powell, Charles C. and Vining Donald M. 1984. Ortho’s Complete Guide to Successful Houseplants.)