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Rumex spinosus
Stem (previously known as Emex spinosa) (not native to Australia, naturalised)
Photographer: Starr, F. & K.
Copyright holder: Starr, F. & K.
Date Taken: 20 March 2007
Taken at: Kanaio, Maui, Hawaii, USA.
Image Source: Australian Plant Image Index (APII) - Photo No.: dig.11692