Question

which tree doesn't have wood

Answer 1

 A banana tree doesn't have wood instead it has many layers of tissues which are used for many purposes like a vegetable in cooking or in weaving flowers in rural

Answer 2

A plantain tree doesn't have wood. It's also called as banana tree. Instead of wood it has some fibre. There are many layers of this fibre making it stiff. Even though it's not so hard. In a cyclone and all it can fall down. The fibre of the plantain tree is used for many purposes, right from making curries to decorating temples. It's most commonly used in South India.
Hope this helps you : )