Piper excelsum (Kawakawa)

Piper excelsum (formerly known as Macropiper excelsum) of the pepper family (Piperaceae) and commonly known as Kawakawa (sometimes Māori Kava), is a small tree or shrub of which the subspecies P. excelsum subsp. excelsum is endemic to New Zealand and the subspecies P. excelsum subsp. psittacorum is found on Lord Howe Island, Norfolk Island and the Kermadec Islands.