Complex sentence: It is a medium-sized deciduous tree growing to 15-20 meters tall, with a trunk up to 1 m diameter with brown to gray bark, maturing into hard plates or ridges.
Split into simpler sentences: It is a medium-sized deciduous tree growing to 15-20 meters tall. It has a trunk up to 1 m diameter with brown to gray bark, maturing into hard plates or ridges.