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Creeping menace
Volunteers being trained to remove Batman plant suffocating native vegetation
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On forest edges around Singapore, the overwhelming grip of a smothering weed snaking up trunks and shrubs is hard to miss.
The invasive Zanzibar yam (Dioscorea sansibarensis) - described as the Batman plant for its bat-shaped leaves - is threatening the regeneration of Singapore's forests by depriving native plants of sunlight.
