How would you like to own a copy of the "Consolidated list of environmental weeds in New Zealand"? You now can, as it's a free download from the NZ Department of Conservation. Maybe, though, the right question to be asking is instead "How can New Zealand consolidate a list of weeds when more that half of their flora is introduced?" They manage to do a good job of it, narrowing down the list to 328 plants, and displaying the whole thing in a nice set of tables in the Appendices that are just begging to be mined for data :-). Some notable entries:
- Prunus persica (Peach!) as an island invader
- Spartina alterniflora (smooth cord grass) - is there anywhere we haven't introduced that plant, including our own West Coast?
- The knotweeds listed under genus Reynoutria - I thought the battle of genera was narrowed down to Fallopia vs. Polygonum long ago, but then here comes Reynoutria bouncing back!