Dendrology or xylology is the study of wooded plants (trees, shrubs, and lianas) and the anatomy of wood (Wood anatomy or Xylotomy). Includes dendrochronology, i.e. deciphering environmental data in growth ring or any other type growth-records in wood .

Dendrology or xylology is the study of wooded plants (trees, shrubs, and lianas) and the anatomy of wood (Wood anatomy or Xylotomy). It includes direct study of wood structure, as well as deciphering different informations from wood, like studying plant classification and evolution, identification of a wooden object or plant (including forensic study), study of fossil woods, ecological-significance of different anomalous secondary growths, deciphering environmental data in growth ring or any other type growth-records in wood (dendrochronology), economic use of woods, wood disease in living plants, wood deterioration after harvesting, etc.