|Etymology||Genus||After Jan Kops, a Dutch botanist|
|Species||Tree-like; describing its form|
|Synonyms||Kopsia jasminiflora Pit., Kopsia lancibracteolata Merr., Kopsia laxinervia Merr.|
|Common Names||Penang Sloe|
|Status||Exotic: Cultivated Only|
|Native Distribution||Andaman & Nicobar Islands, southern China, Thailand, Vietnam, Malesia, and Queensland|
Kopsia arborea is a fairly common cultivated tree. It is a relatively short tree with oppositely arranged elliptic leaves with wavy margins. A useful guide is to look out for the old leaves which will turn reddish or purple (almost always present). The flowers are white with a faint yellow centre while the fruits is ovoid in shape.
Compared to all other Kopsia species, the Penang Sloe the only one that does not have a projection on its fruits.
The species Kopsia flavida is misapplied to K. arborea in various local publications. K. flavida is actually a unique species by itself; having white flowers with a pink centre as well as fruits having a horny projection (Middleton, 2007).
Form of the Penang Sloe in Sengkang.
Leaves have wavy margins.
Old leaves turn red or purple.
A mark on the midpoint of where the opposite leaves meet.
Flowers are white with a faint yellow centre.
Fruits are dark purple and ovoid.