Abstract: This study explores the adaptive strategies of B. textilis in coastal sandy habitats,providing a theoretical basis for the introduction and cultivation of bamboo species in such areas. A comparative study was conducted on the plant growth,branching characteristics,and leaf traits of B. textilis in two distinct habitat conditions:the coastal sandy land where it was introduced and the mountainous red soil of its origin. The results showed that in coastal sandy habitats,the average plant height,breast height diameter,crown width,node length,and number of branches of B. textilis were significantly reduced by 7.1%,18.8%,26.2%,20.2% and 72.6%(P<0.05),while functional traits such as leaf length,leaf width,and leaf area were significantly reduced by 26.3%,26.8% and 48.4%(P<0.05);however,traits such as branching angle,branching length,branching base diameter,and leaf weight significantly increased by 12.4%,62.6%,44.1% and 20.0%(P<0.05);there was no significant difference in traits such as leaf thickness and leaf shape index.The study demonstrates that B.textilis undergoes significant phenotypic plasticity to adapt to the arid and barren conditions of coastal sandy habitats.