Introduction: Ethnobotany explains the relationships between people and plants, particularly how they utilize plants for various purposes. Mandvi taluka of Gujarat state, India, has a good forest cover with valuable medicinal properties. The study is an ethnobotanical survey that explores the floral diversity, their medicinal properties and usage by the indigenous communities. There is great importance of forests, their floral diversity, their aboriginal communities and their indigenous knowledge. This knowledge can be utilized to treat certain disease with less or no side effects.

Methods: Floral diversity was surveyed using quadrate method from September 2018 to July 2021. The ethnomedicinal study was done using semi-structured interviews, questioners and informal conversations. The findings were analysed into abundance, density, frequency, relative abundance, relative density, relative frequency, % composition and importance value index (IVI).

Result: The study records 67 plant species that serves in the Gastrointestinal (GI) disorders among which 17 species were rare and threatened. These plants are helpful in treating 14 to 20 ailments, utilized in 24 or more ways. It has been observed that bark (38%) is the most used tree part. Decoction and infusion are the most common utilization methods. Diarrhea and dysentery as commonly treated GI ailments. The quantitative analysis also shows high heterogeneity in the study area, indicating high species diversity in forests of Mandvi.