Manihot carthaginensis
[Ceara Rubber Tree, False Tapioca, Manicoba]

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Another botanical name of this exotic and naturalised plant may be Manihot carthagenesis subsp. glaziovii. However, this name is considered a synonym of Manihot glaziovii in the Flora of China website.

Reference:

Teo, S., R. K. H. Yeo, K. Y. Chong, Y. F. Chung, L. Neo & H. T. W. Tan, 2011. The flora of Pulau Semakau: a Project Semakau checklist. Nature in Singapore, 4: 263-272. [Read article]

Neo, L., A. T. K. Yee, K. Y. Chong & H. T. W. Tan, 2012. The vascular plant flora of abandoned plantations in Singapore I: Clementi Forest. Nature in Singapore, 5: 275-283. [Read article]