This document provides the scientific classification for 20 different field crops including cotton, foxtail millet, groundnut, cowpea, moong bean, pigeonpea, maize, rice, sesame, urd bean, finger millet, jowar, bajra, napier, jute, sunhemp and bengal gram. For each crop, it lists the kingdom, order, family, genus and species. It also provides the binomial name for identification purposes.