Kowhai (Sophora species) and other nitrogen-fixing plants of New Zealand
Abstract
New Zealand has a range of trees and shrubs which are able to fix nitrogen from the
atmosphere through root nodules. They consist of legumes and some N-fixing nonlegumes
known as actinorhizal plants. The objective of this paper is to review the
species involved (particularly Sophora species), and discuss any implications for
nursery production.