Multiple choice Flowers having unequal number of floral parts whorl are called _____. anisomerous isomerous pentamerous tetramerous Reveal answer Fill a bubble to check yourself A Correct answer Explanation Anisomerous flowers have unequal numbers of parts in different floral whorls (e.g., 5 sepals, 4 petals). Isomerous flowers have equal numbers (e.g., 5 sepals, 5 petals). Pentamerous (5 parts) and tetramerous (4 parts) are specific isomerous types.