An umbel is an inflorescence which consists of a number of short flower stalks (called pedicels) which are equal in length and spread from a common point, somewhat like umbrella ribs.
Umbels are a characteristic of plants such as carrot, parsley, dill, and fennel in the family Apiaceae; ivy, aralia and fatsia in the family Araliaceae; and onion (Allium) in the family Alliaceae. A compressed cyme is called umbelliform if it resembles an umbel.