Mānuka honey is a monofloral honey produced from the nectar of the mānuka tree, Leptospermum scoparium. The mānuka tree is indigenous to New Zealand and some parts of coastal Australia, but is today produced globally. Used as a sugar substitute, it has a strong, earthy aroma and flavour. There is little clinical evidence for its use as a topical medication. The word mānuka is the Māori name of the tree; however, as with many Māori words, the older spelling manuka remains relatively common in English.