Rhizomatous perennial herb < 3 m tall. Stems are reddish, branched and form dense thickets. Leaves are < 15 x 13 cm, bright green, broadly ovate, pointed and leathery, with an extra-floral nectary gland at petiole base. Flowers are small, off-white and borne in dense, drooping racemes <6cm long in summer – autumn. Fruits are glossy brown achenes.
To help protect our environment:
Open areas, riparian areas, disturbed areas, roadsides, gardens, wasteland, forest margins.
Sets seed. Vegetative spread from rhizomes, dispersed by water. Human-mediated dispersal through soil movement.
Forms dense thickets, excluding other species and preventing native seedling recruitment in riparian and forest margins.
Do not attempt to undertake control of this species. Please report to Auckland Council.
CAUTION: When using any herbicide or pesticide please read the label thoroughly to ensure that all instructions and safety requirements are followed.