Japanese honeysuckle (Lonicera japonica) is shown being pulled out at Karori Sanctuary (later Zealandia) in Wellington. The plant resprouts from broken stems or roots, the tough, wiry stems growing up to 15 metres long. Unable to tolerate shade, in forests it climbs over and suffocates most plants from the ground to the middle of the canopy. Infestations can cause the canopy to collapse, which is followed by invasions of other weeds.
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