Japanese honeysuckle is a vigorous evergreen climber that originates from East Asia. It has tubular white flowers which are followed by egg-shaped glossy berries. It is often spread by the movement of stem fragments. It climbs over and smothers from the ground to the medium canopy. It can cause canopy collapse.
Infestations of Japanese honeysuckle are found all over Marlborough with the worst infestations being in the Rai Valley and in the Marlborough Sounds.