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This study pertains to the floristic composition of unexplored mangrove habitats of Kanika Island, Bhadrak District, Odisha, India. Six quadrats each measuring 31.62 x 31.62 m (0.1 ha) were laid at randomly selected sites in the Island between October 2019 and February 2020. Quantitative inventory yielded a total of 12 species across the sampled quadrats. Qualitative floristic inventory of the Island revealed a total of 20 species belonging to 17 genera and 13 families, including four true mangrove species, viz., Avicennia alba, A. marina, A. officinalis, and Lumnitzera littorea were evaluated as ‘Least Concern’ by the IUCN Red List. Out of 20 species, eight species were trees, followed by herbs (8 species), shrubs (3 species), and a climber. The study revealed that four species were true mangroves and 16 species were mangrove associates. Avicennia alba and A. marina were found dominant and have potential for regeneration in the island.
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