Complex sentence: The flower, which contains the non-toxic pyrrolizidine alkaloid (PA) thesinine, has a sweet honey-like taste and is one of the few truly blue-colored edible substances, is often used to decorate desserts.
Split into simpler sentences: The flower, which contains the non-toxic pyrrolizidine alkaloid (PA) thesinine, has a sweet honey-like taste. It is one of the few truly blue-colored edible substances, and is often used to decorate desserts.