Complex sentence: The leaves are elliptical, rounded at the base, entire, acuminate or acute and glabrous; they are 75--150 mm long, 35--60 mm wide, with a 10--15 mm long petiole.
Split into simpler sentences: The leaves are elliptical, rounded at the base, entire, acuminate or acute and glabrous. They are 75--150 mm long, 35--60 mm wide, with a 10--15 mm long petiole.