Ethnobotanical knowledge of the Kaibarta community of the Upper Brahmaputra Valley zone of Assam

An ethnobotanical study was carried out among the peoples of the Kaibarta Community of Upper Brahmaputra Valley Zone of Assam to assess their rich indigenous knowledge system, regarding the application of the ethnomedicinal plants as phyto remedies against certain common ailments. The information on the application of medicinal plants was obtained by interviewing the selected respondents using a semi-structured questionnaire and group conversation. A total of 33 medicinal plants belonging to 24 families were recorded which are used by the target groups for curing 14 common and frequently occurring ailments. 16 of the recorded plants were herbs, 11 were shrubs, 5 were trees, and 1 climber. The data collected during the fieldwork were analyzed for various parameters, i.e., Informant’s Consensus Factor (ICF) Fidelity value (FL%), Use-value (UV) index, and Plant part value (PPV). The highest ICF was calculated against Tonsilitis and Piles followed by Helminthiasis, Gastric, and Diabetes. The majority of reported plant species were used against a single specific ailment. Therefore, they have a high FL% i.e., 100 percent. The highest use value (> .5) was recorded for Ocimun sanctum, Houttuynia cordata, Oxalis corniculata, Azadirachta indica, Musa balbisiana, and Citrus medica, while the leaf has the highest PPV (0.5). The biological activities of the recorded plants were reported from available phytochemical and pharmacological literature and found a positive correlation between the traditional knowledge of the community and the biological activities of the recorded plants. Therefore, it is strongly recommended for extensive ethnobotanical study of the community to fully explore their indigenous knowledge.