Groenteman R, Kelly D, Bourd?t G, Fowler S. Changes in thistle populations between 1984 and 2006 in Canterbury. NZPP [Internet]. 2006 Aug. 1 [cited 2026 Aug. 29];59:361-. Available from: https://journal.nzpps.org/index.php/nzpp/article/view/4553