Practice question

Actinomorphic flower exhibits radial symmetry divisible into two equal mirror halves through any vertical plane passing through centre, analogous to star or wheel. Typical examples include Brassica mustard, Hibiscus rosa-sinensis, Solanum with regular petal spread and poly-symmetric access. Zygomorphic divisible only in single median plane as in Pisum and Antirrhinum, asymmetrical no plane as in Canna edulis, irregular vague term encompassing zygomorphic and asymmetrical. Actinomorphy associated with generalist entomophily and anemophily offering platform landing from multiple directions, considered ancestral within angiosperms from which zygomorphy evolved independently multiple times.