Bidgee-Widgee is a prostrate herb. One plant can cover up to 4-5 square meters under ideal condition. Plants have a burr which is formed after flowering.
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'''''Acaena novae-zelandiae''''' ('''Biddy-biddy'''<ref>[http://plants.usda.gov/java/profile?symbol=ACNO7 ''Acaena novae-zelandiae'' at USDA Plants Database Profile]</ref> or '''Bidgee-widgee'''<ref name=GRIN/>) is an [[ornamental plant]]<ref>{{cite book | author=[[John Wood|Wood, John]] | title=[[Hardy Perennials and Old Fashioned Flower]] | year=2006 | publisher=[[Project Gutenberg|Project Gutenberg Literary Archive Foundation]]}}</ref> native to [[New Zealand]] and Australia. It can also be found elsewhere as an [[introduced species]], and is considered a [[noxious weed]] in some areas, such as Hawaii and California.<ref name=GRIN>[http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?316530 GRIN Species Profile]</ref><ref>[http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?6677,6678,6679 Jepson Manual Treatment]</ref>