Arenga undulatifolia Becc.

 

Origin and Habitat: Borneo, Philippines (Palawan Island) and Indonesia (Sulawesi Island)
Habitat: Arenga undulatifoliaSN|24947]]SN|24947]] is an understory species of tropical lowland rainforests characteristic of river banks, but they do not behave as rheophytes capable of withstanding complete submergence for prolonged periods.

Common Names include:
ENGLISH: Batbat palm, Wild sago palm
CHINESE (中文): Bo ye guang lang
MALAY (بهاس ملاي /Bahasa Melayu ): Oren Gelora (Borneo), Kabun jaka, Kabung jaka, Aren Gelora

 

Description: Arenga undulatifoliaSN|24947]]SN|24947]] is a fantastic short-trunked feather-leaf palm with large wavy fronds that grows to about 4 m tall. It is a suckering species that forms dense clumps and takes up a lot of room. It is a monoecious plant, monocarpic (bearing fruit only one time during its existence).
Trunks: Short stocky occasionally 3-5 m tall but usually less than 2 m tall in cultivation, at first covered by the foliar bases and by a mass of blackish-brown fibres that persist for many years, then the lower part of the stem became bare of a dark green colour and with pale ring-like leaf scars.
Leaves: Very attractive, pinnate on a short petiole, 3 or more metres long, initially erect, and then elegantly curved, spreading quite a distance in all directions. Leaflets (pinnae) distributed uniformly on the rachis, about 60 cm long, large, wavy, ruffled, fishtail-shaped dark green with bluish reflexes above, whitish or pale grey beneath. Margin toothed and wavy.
Inflorescences: Infrafoliar, ramified, initially erect than hanging, carrying only masculine or feminine flowers, but always on the same plant.
Flowers: Male flowers are noticeable for their colour, going from the yellow to orange to brown, and for the intense spicy scent they emanate.
Fruits: Globose, of 3-4 cm of diameter, brown when ripe and usually contain three seeds.

 

Arenga undulatifolia (llifle.com)

https://youtu.be/4YVQpW6kGHQ?t=1355