This species might only represent a cultivar or cultivar group descended from the wild species Pandanus brosimos. Another relative, andanus iIwen, which is reported to be cultivated in Papua New Guinea, might only be a cultivar of the so-called Pandanus brosimos/julianetti complex. The whole needs taxonomic revision[].

Common Name:

General Information

Pandanus julianettii is an evergreen, erect, sparsely branched, shrub or small tree with large leathery leaves. It can reach a height of 1 - 20 metres[].
The plants are cultivated, semi-cultivated and harvested from the wild for their edible seeds, which have had a special significance for the nutrition of the native population of New Guinea[]. Both this species, plus the related P. Brosimos and P. Antaresensis, have had an important role in the history of the human society of the highlands of New Guinea[]. The plant is also grown for the production of textile fibres[].

Known Hazards

None known

Botanical References

Range

Australasia - New Guinea.

Habitat

Not known

Properties

Edibility Rating
Other Uses Rating
Habit	Evergreen Shrub
Height	4.00 m
Cultivation Status	Cultivated, Semi-cultivated, Wild

Cultivation Details

A plant of the humid tropics, where it is found at elevations from 1,700 - 2,900 metres[]. Plants grow best in areas where the mean annual temperature is within the range 13 - 24°c, but can tolerate 6 - 30°c[]. They may tolerate temperatures as low as 0°c for short periods and down to 3°c for prolonged periods[]. They prefer a mean annual rainfall in the range 3,000 - 4,000mm, tolerating 2,500 - 4,000mm[].
Succeeds in sunny positions and in light shade[]. Prefers a well-drained, humus-rich, light to medium soil[]. Prefers a pH in the range 4.5 - 5.5, but tolerates 3.5 - 5.6[].
Plants can be harvested for their fibre the first time 6 - 8 years from planting, with an economical life of 20-40 years and with a total lifespan of up to 70 years[].
Require 90-120 days from flowering to fruiting and have no obvious seasonality[].
This species has potential for commercial use[].
Branches do not have dormant buds and so will not resprout if cut back into the old wood[].
A dioecious species, both male and female forms need to be grown if fruits and seed are required.

Edible Uses

Seeds[]. The seeds are oily and contain a fair amount of protein[].

Sometimes the inner leaves and the tips of the aerial roots are eaten cooked[].

Medicinal

None known

Other Uses

A fibre obtained from the plant is used for making textiles[].

Propagation

Seed - best pre-soaked for 24 hours prior to sowing[].

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