When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as:

• A

  Vexillary aestivation
• Correct answer
  B

  Imbricate aestivation
• C

  Twisted aestivation
• D

  Valvate aestivation

Solution

When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as imbricate aestivation.

Hence, the correct answer is option: 'B'.