Vigorous, erect, perennial shrub <3m tall but more commonly 1-2m. Long-lived & partly deciduous in winter. Offensive-smelling leaves alternate, wavy, hairless, lance-shaped & <12cm long. C. nocturnum has creamy white flowers & white berries.
Waste areas, stream banks, near gardens, bush margins, gullies, alluvial flats. Prefers higher rainfall areas. Very frost tolerant.
Seeds dispersed by birds & water. Pieces of cut root spread by cultivation. Also reproduces vegetatively from buds from creeping roots. Seeds remain dormant in the soil for many years.
Extremely toxic to farm animals. Dense infestations exclude virtually all other vegetation.
This species is included because it is one of the species to be researched in the 2007-2012 Auckland Regional Pest Management Strategy.
Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.