Remember key scientific names:
Rice = Oryza sativa, Wheat = Triticum, Chickpea = Cicer, Sugarcane = Saccharum, Groundnut = Arachis.
Common mnemonics: "Rice is Oryza, Wheat is Triticum, Chickpea is Cicer, Sugarcane is Saccharum, Groundnut is Arachis."