Pipturus albidus, known as māmaki (sometimes waimea, for its resemblance to olomea[1]) in Hawaiian and known as Waimea pipturus in English,[2] is a species of flowering plant in the nettle family, Urticaceae, that is endemic to Hawaiʻi.

[3] Native Hawaiians made a treatment for illnesses known as ʻea and pāʻaoʻao from the fruit.

[4] They also combined fresh māmaki leaves with hot stones and spring water to produce herbal tea that was an effective treatment for general debility.

[6] The bast fibres were used by Native Hawaiians to make kapa (bark cloth) and kaula (rope).

[7][3][8] The Kamehameha butterfly eggs thrived on this plant in regard to both size and performance.