|Etymology||Genus||From Malay Kesuari; referring to the resemblance of its twigs to the drooping feathers of the cassowary|
|Species||Latin for noble, referring to its graceful form|
|Synonyms||Casuarina nobilis Whitmore|
|Common Names||Bornean Rhu, Bornean Ru, Rhu Ronang|
|Status||Exotic: Cultivated Only|
|Native Distribution||Borneo, Philippines|
Growing up to 40m, though seemingly shorter in cultivation, Gymnostoma nobile is a smaller cousin of Casuarina equisetifolia. It has a graceful spreading foliage, and has green-coloured twigs and highly reduced scale-like leaves.
In its native origin, the Borneo Rhu is found in peat swamp forests, or on sandy or rocky soils (Slik, 2009). The timber is said to be used for construction and fuel.
At Upper Seletar Reservoir, a individual is dubbed as an "Instagram Tree" because of its classic form together with the nice backdrop of the reservoir. This is a popular wedding location for couples.
An individual at Mandai Track 7 (2012).
The "Instagram Tree" at Upper Seletar Reservoir (2018).
Slik F (2009) Gymnostoma mobile. Plants of Southeast Asia. http://www.asianplant.net. Accessed 20-Dec-2018.