It has been proposed - William J.Baker; A revised delimitation of the rattan genus Calamus (Arecaceae), Phytotaxa 197 (2): 139-152; 2015 - that the genera Ceratolobus, Daemonorops, Pogonotium and Retispatha should all be subsumed into a revised and expanded concept of the genus Calamus. This revised treatment has been accepted in the 'World Checklist of Selected Plant Families' and is likely to recieve further acceptance. For the time being, until there is wider acceptance of this change, we are not moving these species across into Calamus. The new name for this species in Calamus will be Calamus ruptilis (Becc.) W.J.Baker[
Calamus ruptilis (Becc.) W.J.Baker
Photograph by: John Dransfield
Image credit to Palmweb
Daemonorops ruptilis is a robust, evergreen, climbing palm producing a cluster of unbranched stems up to 20 metres long that climb into the surrounding vegetation. These is also a stemless form of this species[
The plant is harvested from the wild for local use as a food.
Southeast Asia - Malaysia, Indonesia on the island of Borneo.
Locally common in lowland forest[
Most species in this genus are more or less vigorous climbing plants in rainforests. In general, they are likely to grow best with their roots in the shade but with enough gap in the canopy to encourage their stems to grow up towards the light. They are also likely to grow best in a humus-rich soil[
A dioecious species, both male and female forms need to be grown if fruit and seed are required.
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