A leguminous tree is a type of tree that belongs to the family Fabaceae, which includes plants that produce pods containing seeds. Laburnum, with 8 letters, is a genus of flowering trees in the family Fabaceae, native to the mountains of southern Europe. Mesquite, also with 8 letters, is a shrub or small tree native to the southwestern United States and northern Mexico. CAROB, with 5 letters, is a species of flowering evergreen shrub or tree in the pea family, Fabaceae, native to the Mediterranean region.