20210427 09203600 1.0 TRUE Purple rubber vine Native to north-western Madagascar, purple (or ornamental) rubber vine grows supported as a many-stemmed vine or unsupported as a small shrub. It can threaten waterways and vine forests. Purple rubber vine is closely related to rubber vine (Cryptostegia grandiflora), which is one of Queensland's most destructive weeds. © State of Queensland (Department of Agriculture and Fisheries), 2023 weeds pests Map layer extracted from Biosecurity Queensland pest distribution survey displaying distribution of individual invasive weed species.