Dictionary.com
Thesaurus.com

Noogoora burr

British  
/ nəˈɡuːrə /

noun

  1. a European cocklebur, Xanthium pungens, that is poisonous to stock

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Noogoora burr

from Noogoora , a sheep station in Queensland