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We studied the wood of Peltophorum dubium (Spreng.) Taub. (Fabaceae),\udpopularly known in Brazil as canafístula, from two seed provenances with different climates.\udThe trees were planted in a third place and cut when 28 years old. Based on differences in\udseed origins, we hypothesized that some differences would be observed in wood density and\udanatomical features between provenances and that the radial variation pattern would also\uddiffer. However, we did not observe any differences in basic specific gravity or anatomical\udfeatures between the provenances, which may partly be explained by the conservative nature\udof wood compared with the external characteristics more susceptible to environmental\udstresses. In fact, based on the literature and our previous findings, radial variation in P. dubium\udwas similar to that found in many native species, including, for example, increase in basic specific\udgravity, length and wall thickness of the fibers, increase in vessel diameter and decrease in\udvessel frequency toward the bark. Based on our results, it can be concluded that P. dubium has\udhigh plant adaptability in different locations and that consistency in the quality of its wood can be\udmaintained between provenances, with concomitant implications for both production and use.\udEstudamos a madeira de Peltophorum dubium (Spreng.) Taub. (Fabaceae),\udpopularmente conhecida no Brasil como canafístula, a partir de duas procedências de\udsementes com diferentes climas. As árvores foram plantadas em um terceiro lugar e cortadas\udaos 28 anos. Com base nas diferentes origens das sementes, hipotetizamos que diferenças\udseriam observadas na densidade aparente e características anatômicas da madeira entre\udas procedências e que o padrão de variação radial também diferisse. No entanto, não foram\udobservadas quaisquer diferenças na densidade aparente ou nas características anatômicas entre\udas procedências, o que pode em parte ser explicado pela natureza conservativa da madeira\udem comparação com as características externas mais sensíveis a estresses ambientais, como\udas folhas. Com base na literatura e em nossos resultados anteriores, a variação radial em\udP. dubium foi semelhante à encontrada em muitas espécies nativas, incluindo, por exemplo,\udaumento na densidade aparente, comprimento e espessura da parede das fibras, aumento\udno diâmetro e diminuição na frequência de vasos na direção da casca. Concluímos que\udP. dubium tem alta adaptabilidade em diferentes locais e que a consistência na qualidade de\udsua madeira pode ser mantida entre procedências, com implicações concomitantes, tanto para\udprodução quanto para a utilização

Basic specific gravity and anatomy of Peltophorum dubium wood as a function of provenance and radial position