Heliconia rostrata (Lobster claw), common in Bengal though native to South America - National flower of Bolivia!!
Heliconias are known to those who grow them as a host flower to many birds, especially the Hummingbird.
Sabujbon, considered to be a botanist's dream, has probably the largest unique private collection of cycas and adenium plants in India.
Sabujbon, Rasulpur, Ajay River (Near Bolpur), Birbhum, West Bengal, India