WARNING: The following image contains heinous invasive weeds that may be distressing to young or sensitive environmentalists (teehee). See if you can pick them all: periwinkle, sycamore, ivy, wild ginger, tradescantia and tree lomatia. You probably won’t have heard of tree lomatia, but it’s a horror weed of the future (see @katemcweedatwork on Instagram).

Scientific names: Vinca major (periwinkle), Acer pseudopanax (sycamore), Hedera helix (ivy), Hedychium gardnerianum (wild ginger), Tradescantia fluminensis (tradescantia), Lomatia fraseri (tree lomatia).