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Phytosociological Analysis of Herbaceous Plant Diversity in Mannarkkad Taluk, Kerala

Author(s) Shahana Jasmi A, Shifna T, Fathima Shilna P, Fathimath Raniya N, Niba Sharin N
Country India
Abstract The present study evaluates the phytosociological structure of herbaceous plant communities in a region of the Western Ghats using standard ecological methods. Field surveys were carried out across five locations employing randomly laid 1 m² quadrats. Phytosociological parameters including density, frequency, abundance, relative values, and Importance Value Index (IVI) were calculated to assess species composition, dominance, and community structure. Plant specimens were identified through morphological analysis and verified using standard taxonomic references. The results indicate clear dominance patterns within herbaceous communities. Alternanthera triandra emerged as a major dominant species, recording the highest IVI (158.47), while Synedrella nodiflora showed strong site-specific dominance with an IVI of 110.62. Co-dominance of Wedelia trilobata (IVI 69.54) and Mimosa pudica (IVI 62.24) was observed in certain locations. Several species with low IVI values were identified as ecologically minor components but contributed to overall floristic diversity. The study demonstrates that herbaceous community structure is strongly influenced by ecological adaptability and disturbance gradients. The dominance of a few resilient species alongside a diverse assemblage of less abundant taxa reflects typical vegetation dynamics of Western Ghats ecosystems. These findings provide baseline data useful for vegetation assessment, biodiversity monitoring, and conservation planning.
Keywords Phytosociology; Herbaceous vegetation; Importance Value Index (IVI); Quadrat method; Western Ghats; Plant community structure
Field Biology > Agriculture / Botany
Published In Volume 17, Issue 1, Array 2026
Published On 2026-01-31
Cite This Phytosociological Analysis of Herbaceous Plant Diversity in Mannarkkad Taluk, Kerala - Shahana Jasmi A, Shifna T, Fathima Shilna P, Fathimath Raniya N, Niba Sharin N - IJTAS Volume 17, Issue 1, Array 2026.
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