Q.

Which one of the following plants shows vexillary aestivation and diadelphous stamens                [2022]

1 Colchicum autumnale  
2 Pisum sativum  
3 Allium cepa  
4 Solanum nigrum  

Ans.

(2)

Colchicum autumnale, Allium cepa, and Solanum nigrum show valvate aestivation.