Mycorrhiza is found to play a vital role in the growth of many plant species and can also be used as one of the tools for crop improvement. The present work was undertaken to study Arbuscular Mycorrhizal (AM) association in three rattan species namely Calamus thwaitesii Becc. & Hook.f., Calamus nagabettai Fernandez & Dey and Calamus prasinus Lakshmana & Renuka of Pattighat Reserve Forest, Sampaje, Kodagu district of Karnataka, India. A total of 40 species of AM fungi belonging to five genera namely Acaulospora, Entrophospora, Gigaspora, Glomus and Scutellospora were isolated from the rhizopshere soils of rattans.