Multiple choice general knowledge history Estonia Lilium bosniacum rose cornflower Red clover Reveal answer Fill a bubble to check yourself C Correct answer Explanation The cornflower (Centaurea cyanus) is Estonia's national flower, locally known as 'sinilill' meaning 'blue lily.' Lilium bosniacum is Bosnia's national flower, rose is common in many countries, and red clover is not Estonia's national emblem.