Directory: Pests: Weeds: Dock (1)   Articles Broad-leaved dock - Rumex obtusifolius There are a number of different dock species that grow within New Zealand, but broad-leaved dock would be the most common of these. It is a perennial weed which has a large tap-root system. It can vary in size quite considerably. Current Weather Warnings | Bookmark this page | Suggest a listing | Advertise on this page | Our Philosophy This page was last updated on 01 May 2013 All content and images copyright © 2013 Small Kiwi Farms New Zealand. Copyright of linked pages is retained by their owners. Small Kiwi Farms New Zealand is unable to give any assurance regarding the accuracy of this information.