Leaves round to 21 cm in diameter. Warmer lowland areas, especially coastal. Wayside and waste places especially moist, shady situations, also riverbanks and waterways in built up areas. Garden escape locally common, especially near towns. Can form dense cover restricting native vegetation.
Plants growing on streamsides and riverbanks are the most heavily impacted species.
A finely chopped mulch might not resprout. Recommended Approach Hand pull wherever possible. Spray larger infestations with Roundup.