Survey of Orchids in Yercaud hills reveals that nearly 58 species of Orchids are present in this area. Majority of these are endemic to peninsular India with very few having distribution else were. The national Orchidorium present in Yercaud hills to conserve nearly 123 species (BSI-2007) of Orchids. Many of the Orchids are rare and threatened for reasons like over exploitation and habitat destruction. Among this habitat epiphytic 41 contribute higher distribution, followed by terrestrial 15 and Lithophytic 2 Orchids. Epiphytic Orchids are largely tropical and sub-tropical in distribution. Most of the Orchids are in extinct stage because of deforestation and utilization. In this stage conservation of Orchids is most important. The collected Orchids are listed below according to the alphabetical order.
