Walking around the Gardens, one cannot miss the Cannon Ball Tree (Couropita guanensis) and the large buttress roots of the Sengkuang Tree (Dracantamelon dao). Look out for the Pinang Palm (Areca catechu) that lent its name to the island of Penang, and the Black Lily (Tacca integrifalia) with its unique purplish-black coloured flowers. The endemic Slipper Orchid (Paphiopedilum barbatum) and the ginger, Geoctachys penangensis, can also be found here.