basswood, (Tilia americana), species of linden tree of the hibiscus, or mallow, family (Malvaceae) common to North America. Basswood is found in a vast area of eastern and southeastern North America and centred in the Great Lakes region. A large shade tree, basswood provides wood for beehives, crating, furniture, and excelsior (wood fibres). It is also a popular honeybee tree; basswood honey is pale and of distinctive flavour. The Carolina basswood (formerly Tilia caroliniana), white basswood (formerly T. heterophylla), and the Georgia basswood (formerly T. georgiana) have undergone taxonomic revisions and are now usually classified as varieties of T. americana.
Basswood is a large, graceful, deciduous tree, reaching 40 metres (130 feet) in height. The asymmetrical leaves are heart-shaped and coarsely toothed. The fragrant cream-coloured flowers are bisexual and pollinated by insects. The small globular fruits characteristically hang from narrow leafy bracts, which may aid in dispersal.