The present investigation records 38 species representing 14 genera of Araceae Juss. from West Bengal. Arisaema Mart. is the dominant genus with 11 species. Out of 38 species, 14 species are distributed in the plains (of which Cryptocoryne ciliata (Roxb.) Fisch. ex Wydler, C. retrospiralis (Roxb.) Kunth, C.spiralis (Retz.) Fisch. ex Wydler, Lasia spinosa (L.) Thwaites and Pistia stratiotes L. are aquatic) and rest 24 species are terrestrial and are generally distributed at altitudinal regions up to 3900 m. The percentage of herbs and climbers are 86.84% and 13.15% respectively. Typhonium roxburghii Schott and T.roxburghii var. longispathum S. Nirola & A.P.Das are stated to be rare in West Bengal. T. roxburghii var. longispathum S. Nirola & A.P.Das is endemic to Darjeeling Hills. Arisaema intermedium Bl. is the only species of Araceae which is endemic to Singalila Range of Darjeeling. Artificial key for identification of concerned genera and species have been provided along with their botanical features, vernacular name(s), flowering and fruiting periods, status and distribution.