Pisonia brunoniana

Pisonia brunoniana is an evergreen shrub or small tree. It belongs to the Nyctaginaceae family. Its native range spans several parts of the Pacific. These include Hawaii, Lord Howe Island, and Norfolk Island. It also grows in the Kermadecs and New Zealand. The species comes from tropical and subtropical islands. Some authorities have treated it as part of Pisonia umbellifera. The source lists it as a separate species.

The source gives a height of 33 feet [10 metres]. Its broader account allows heights of 49 feet [15 metres]. It does not give a separate size range for gardens. The plant grows beneath the canopy in humid forests. It also occurs in sites with dry to moderate moisture. An exposed specimen shown in the source has a gnarled form. Another image shows a young tree in a sheltered spot. Its evergreen foliage remains a feature throughout the year. The account gives no detailed leaf or bark traits.

The fruit holds a strong, sticky sap. Fruits can cling to birds' legs and travel with them. This helps the plant reach remote islands across the Pacific. The source shows flowers and young fruit in photographs. It gives no flower colour, bloom season, or fruit size. Bird transport concerns seed spread, rather than a stated pollination method. The account does not describe garden pests or diseases. It also gives no frost limit or hardiness zone.

The source gives its clearest growing guidance for young plants. Growers can sow the whole fruit because handling it is sticky. This method takes about four to six weeks to sprout. Another method removes the seed in water before sowing. Place the cleaned seed flat in vermiculite. Seeds treated this way may sprout within one to two weeks. Move seedlings into separate pots before their leaves develop. Keep the potting medium moist during this stage. Plant out at roughly 0.7–1 foot [0.2–0.3 metres] tall. Give these young plants partial shade.

People sometimes collect wild plants for local medicinal use. Reported uses include leaves to increase urine flow. Roots have served as a purgative. These reports do not establish safe doses or home treatments. The source records no known food uses. It lists no known hazards, but offers no pet-specific safety assessment. The wood is very soft and has no reported use.