The Collaborative International Dictionary
Fan palm \Fan" palm`\ (Bot.) Any palm tree having fan-shaped or radiate leaves; as the Cham[ae]rops humilis of Southern Europe; the species of Sabal and Thrinax in the West Indies, Florida, etc.; and especially the great talipot tree ( Corypha umbraculifera) of Ceylon and Malaya. The leaves of the latter are often eighteen feet long and fourteen wide, and are used for umbrellas, tents, and roofs. When cut up, they are used for books and manuscripts.
Talipot \Tal"i*pot\, n. [Hind. t[=a]lp[=a]t the leaf of the tree.] (Bot.) A beautiful tropical palm tree ( Corypha umbraculifera), a native of Ceylon and the Malabar coast. It has a trunk sixty or seventy feet high, bearing a crown of gigantic fan-shaped leaves which are used as umbrellas and as fans in ceremonial processions, and, when cut into strips, as a substitute for writing paper.
Wikipedia
Corypha umbraculifera, the talipot palm, is a species of palm native to eastern and southern India and Sri Lanka. It is also grown in Cambodia, Myanmar, China, Thailand and the Andaman Islands. It is a flowering plant with the largest inflorescence in the world.