Medicinal Native Plants of New Zealand Rongoa: Dermatological complaints: Puriri leaves were boiled in water and the resulting infusion applied to ulcers, especially those under the ear. Respiratory complaints: An infusion of puriri leaves in water was given by mouth to treat sore throats. The antiseptic quality of puriri leaves has resulted in a germicide based on the plant being patented. Musculoskeletal complaints: An infusion of puriri leaves in water can also be used to treat musculoskeletal problems such as muscle pain, backache and sprains. Alternative uses: The puriri tree has useful hardwood that was used to make spades, bridges, paddles, weapons, fences and other items that required sturdiness. Bark from the tree has been used to create dyes that are yellow/brown in colour. Chemistry: The most significant chemical isolated from the Puriri tree is the flavanoid vitexin, or C Glycoside. Beta-carotene and phydroxybenzoic acid are found in the leaves, and a methyl ester of p-hydroxybenzoic acid has been patented as a germicide.
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