 Adult leaves are arranged alternately, the same shade of dull greyish to bluish green on both sides, linear to narrow oblong, long and wide, tapering to a petiole long.The flower buds are arranged in leaf axils in groups of seven on an unbranched peduncle long, the individual buds on pedicels long.Mature buds are oval, long and wide with a tapered, horn-like operculum long.