The Valley of Flowers is the central area of the Nanda Devi Biosphere Reserve. There are about 520 high altitude plants, including various flowering plants and rare medicinal plants.Herbal plants, namely Aconitum heterophyllum, Afalconeri, Arnebia benthamii, Dactylorhiza hatagirea, Gymnadenia orchids, Megacarpa polyandra, Picrorhiza Kuruma and Taxus wallichiana dominate the area.
A research nursery for the promotion of these rare medicinal herbs was created near the entrance in Musadhar. Among the flowering plants found in this region are orchids, marigolds, poppies, daisies, primroses and anemones.
Parts of the valley of the flowers are covered with subalpine forests of birch and rhododendron. Flowering plants represent about 490 of the 520 species listed in this national park.