The elliptic - oblong , leathery leaves of about 7 to 10 cm long , are carried on long petioles .
The elliptic - oblong , leathery leaves of about 7 to 10 cm long , are are often noticeably folded along the midrib .
The elliptic - oblong , leathery leaves of about 7 to 10 cm long , are carried on long petioles , and are often noticeably folded along the midrib .