Complex sentence: Chrysanthemums, often called mums or chrysanths, are perennial flowering plants of the genus "Chrysanthemum" in the family Asteraceae which are native to Asia and northeastern Europe.
Split into simpler sentences: Chrysanthemums, often called mums or chrysanths, are flowering plants of the genus "Chrysanthemum" in the family Asteraceae. They are native to Asia and northeastern Europe.