 Stipules grow between the base of the leaf stem and the stem, a rather rare character.Leaf stems have narrow wings on each side, which is a continuation of the leaf blades.Blades are about 12 cm long and 4–5 cm wide, leathery with a rounded tip, have a foot that gradually narrows into the wings of the leaf stem, and have widely spaced teeth along the margins, particularly in the distal half.