Baobab is the common name of a genus of trees (Adansonia). There are eight species, six native to Madagascar, and one each to mainland Africa and Australia. It is the national tree of Madagascar.
Other common names include 'boab', 'boaboa', 'bottle tree', 'the tree
of life', 'upside-down tree', and 'monkey bread tree'. The trees reach
heights of 5 to 30 metres (16 to 98 ft) and trunk diameters of 7 to 11
metres (23 to 36 ft). Its trunk can hold up to 120,000 litres of water.
For most of the year, the tree is leafless, and looks very much like it
has its roots sticking up in the air.
