Adhatoda zeylanica 

Adhatoda zeylanica  is a species of plant from the acanthus family. It probably comes from Pakistan.
It reaches up to 4 meters in height.
The petiole and leaf blade are pubescent from below, the leaf blade is pubescent from above when young, with age it becomes bare.
The flowers are gathered in a terminal spike. They are pubescent, pointed at the top. The flower corolla is white or pinkish.