Question

Which of the monocarpic plant flowers once in every 12 years due to which Nilgiris are called as blue mountains?

• A. Butea
• B. Strobilanthes
  
• C. Primula
• D. Amorphophallus

Answer 1

The correct option is B Strobilanthes

• The term Nilgiris in Tamil is for Blue Mountains.
  
• The strikingly blue color of the hills is attributed to the clustered bloom of the mass-flowering species Strobilanthes Kantian commonly called Neela kurinji that blossoms only once in 12 years.

Therefore, the correct answer is option B.