Practice question

Cruciferae synonym Brassicaceae mustard family exhibits cruciform corolla derived Greek crux cross, four free petals arranged orthogonal in cross, four sepals decussate, six stamens tetradynamous arrangement four long medial two short lateral, superior ovary with parietal placentation and false septum replum dividing ovary forming siliqua or silicula fruit containing glucosinolates pungent defence. Fabaceae banner wings keel papilionaceous, Solanaceae gamopetalous rotate pentamerous, Rosaceae hypanthium five petals numerous stamens. Cross arrangement linked to specialized pollination by short-tongued bees flies; thus petal number arrangement easily distinguishes mustards in field during spring.