Abstract
The genus Corymbia comprises species with strategic potential for forest diversification in tropical and subtropical regions. Native to Australia, key Corymbia species have evolved across diverse environmental gradients, resulting in broad ecological adaptability. This review synthesizes recent advances in taxonomy, productivity, resistance traits, industrial applications, and breeding programs, with a particular focus on developments in Brazil, Australia, and South Africa. Species from the Spotted Gum group (C. citriodora, C. variegata, C. henryi, and C. maculata), along with C. torelliana, stand out due to their relevance in interspecific hybridization strategies. While C. variegata is often considered a subspecies in some classifications, it is treated here as a distinct species due to its ecological differentiation and practical relevance in Brazilian breeding programs. Field trials of Corymbia species have revealed substantial variation in mean annual increment (between 12 and 37.6 m³ ha⁻¹), reflecting strong species/provenances-by-environments interactions. These species exhibit basic wood densities exceeding 600 kg m⁻³ and demonstrate promising performance for solid wood, essential oil, pulp, and charcoal production. However, clonal propagation remains a significant bottleneck, primarily due to limited adventitious rooting, which restricts large-scale deployment. Despite these limitations, the consistent performance of Corymbia under restrictive environmental conditions including drought, pests and its marked adaptability to climatic variability underscore its value as a genetic resource for future forestry. Although the genus possesses several promising traits, it remains commercially underutilized. Its broader deployment could play a pivotal role in enhancing the adaptability and resilience of forest plantations.