In June 2013 we (Tabish and I) were returning from Bumla Pass, in Tawang area, and were at altitude of 4000-4500 m, and we came across this captivating sight. The story emerged much later after Tabish thoroughly analyzed the pictures taken by us. Primula strumosa is a beautiful primrose with pale yellow flowers, with a golden eye at the center. Primula calderiana is a tall primrose with dark purple flowers with a golden eye. It was conjectured and later verified that the two species hybridize freely at altitudes where their distributions overlap. The result is natural hybrids of virtually every color flowers! We were fortunate to come across this phenomenon where we saw a large expanse with Primula strumosa and various hydrids with Primula calderiana with flowers of many different colors. I was awestruck by the beauty of the landscape, and the story turned out to be even more exciting. I thought of sharing this with you all.
Best wishes
Girija