Callistemon, a genus of shrubs and trees from Australia known as bottlebrushes
Leptospermone is a chemical compound (a β-triketone) produced by some members of the myrtle family (Myrtaceae), such as Callistemon citrinus (Lemon Bottlebrush), a shrub native to Australia, and Leptospermum scoparium (Manuka), a New Zealand tree from which it gets its name.
The common name is the Bottlebrush Grass Tree This plant features yellow flowers resembling Banksias or Bottlebrushes, around 10 cm long.
The Yellow Honeyeater hovers in front of the spectacular flowers of the wild Bottlebrush Orchid or Coelandria smillieae which appear in northern Queensland between August and November, while feeding upon the nectar and pollinating the flowers.