  We investigate rogue-wave solutions in a three-component coupled nonlinear
Schrodinger equation. With certain requirements on the backgrounds of
components, we construct a multi-rogue-wave solution that exhibits a structure
like a four-petaled flower in temporal-spatial distribution, in contrast to the
eye-shaped structure in one-component or two-component systems. The results
could be of interest in such diverse fields as Bose-Einstein condensates,
nonlinear fibers, and superfluids.
