Radial symmetry is found in the flowers of Pisum, Cassia, Brassica, Trifolium?

A cyclic flower is a flower that can be divided into two equal vertical halves by any vertical plane is said to be actinomorphic. In Brassica petals are in radial symmetry, i.e., all the petals are identical in size and shape. The bilaterally symmetrical flowers that can be cut into two equal halves through a single vertical plane only are said to be irregular or zygomorphic. All other given flowers are zygomorphic. So, the correct answer is 'Brassica'.