Mentioned in these volumes are plants of the Malabar region which in his time referred to the stretch along the Western Ghats from Goa to Kanyakumari. The book gives a detailed account of the flora of Kerala, along with sketches and detailed descriptions. Over 742 different plants and their indigenous science are considered in the book. The book also employs a system of classification based on the traditions adopted by the practitioners of that region. Apart from Latin, the plant names have been recorded in other languages including Malayalam, Konkani, Arabic, English.