purple golden eyed primrose flower, primual calderiana, high altitude primrose found in the himalayas. at trekking route varsey

primula flower sikkim trekking barsey versey route dense forest varsey rhododendron sanctuary tourist india trek green versay nature himalayan tourism mountain travel tonglu singalila mountains background blue hill west bengal red natural floral darjeeling himalaya spring springtime state tree vibrant purple golden eyed primrose primual calderiana high altitude himalayas found himalayas