Simplify the following text for a Grade 8 native English-speaking person.
Original: It is a large evergreen coniferous tree reaching 40 â `` 50 m tall , exceptionally 60 m , with a trunk up to 3 m diameter .
Simplified: It is a large evergreen coniferous tree reaching 40-50 m tall , exceptionally 60 m , with a trunk up to 3m thick .