Question

Name a plant showing thermonastic movement

Answer 1

tulip flower shows thermonastixc movement

Answer 2

Thermonastic movement is the movement of plant organs is response to change in temperature (heat or cold). 
The thermonastic movement has been found in the leaves of Rhododendron species. These plants curls its leaves in response to the cold stress and high temperature. This is thought to be the main mechanism behind the cold stress tolerance in these plants.
 
Hope this information will clear your doubts about the Thermonastic movement.