Seed Production of Vegetable, Tuber and Spice Crops

Flowering

• The individual carrot flowers, in common with most other species in Umbelliferae, are borne on terminal branches in compound umbels.
  
• There is a distinct order of flowering, which relates to umbel position.
  
• The first umbel to flower is the primary (sometimes referred to as the 'king' umbel) that is terminal to the main stalk.
  
• Branches from the main stalk from secondary umbels, and subsequent branches from these form tertiary umbels.
  
• Quaternary branches and umbels may also be formed.