Conversation so far:
which regions of india are one of the biodiversity hotspots on the earth for flowering plants
India has 4 biodiversity hotspots:the Himalayas, the Western Ghats, the Indo-Burma region and the Sundaland (Includes Nicobar group of Islands).

Question: how many species of flowering plants?
Self-contained rewrite: how many species of flowering plants are there in the western ghats?