karewa of coastal bluffs with long arching leaves
- Size
- Length: 1000 cm
- Lifespan
- 20–40 years
- Diet
- Not applicable (vine). Photosynthetic climber.
- Habitat
- Lowland forests, forest margins and scrub. Prefers fertile, well-drained soils with partial shade. Climbs trees and shrubs using twining stems. Often found in regenerating forest and along forest edges in warm, northern areas.
- Range
- Throughout New Zealand from Northland to Otago. Most common in lowland forests and forest margins. Also found on the Chatham Islands. Endemic to New Zealand.
- Endemism
- Endemic
- Main Threats
- Habitat loss from land clearance is the primary threat. Browsing by introduced possums and deer. Climate change affecting forest habitats. No significant commercial use. Protection of lowland forest is critical.
- Population
- Populations are considered stable in remaining forest fragments. The species is common in lowland forests throughout New Zealand. It is threatened by ongoing habitat loss and browsing by possums.
- Conservation Status
- Not Threatened
New Zealand's only native passionfruit. The fruit is small and egg-shaped, ripening to orange-yellow, containing edible pulp with a mild, sweet flavour. The flesh is translucent and jelly-like, with small, dark seeds. The flavour is mild and sweet, less intense than the tropical passionfruit. Not a supermarket fruit. A forest fruit.
The flowers are small and greenish-white, not showy like the introduced passionfruit. They have five petals and a fringe of filaments in the centre. The flowers are followed by the fruit, which takes several months to ripen. The species is a vigorous climber, covering trees and shrubs in lowland forests. It climbs using twining stems that wrap around branches and trunks. A plant that pulls itself up.
The name karewa refers to the floating or drifting habit of the vine. The plant is most common in warm, northern areas, reaching its southern limit in Otago. It is less common in cooler, drier forests. The species is endemic to New Zealand, found nowhere else in the world. A local. A specialist.
Karewa is an important food source for native birds, which eat the fruit and disperse the seeds. The dense growth provides shelter for insects and lizards. The plant is not commonly cultivated but can be grown in warm, sheltered gardens.
That is karewa. New Zealand's own passionfruit. Mild, sweet, and endemic. It carries on.