Wild Wonders of Europe / Bartocha / Shuttlecock ferns (Matteuccia struthiopteris) and Burdock (Arctium lappa) in Ghimbavul Valley Gorge, Arges County, Leota Mountains range, Carpathian Mountains, Romania, July

Alex Hyde / Lesser burdock (Arctium minus) close up of seedheads showing hooks that catch on animal fur, allowing the seedhead to be transported, Peak District National Park, Derbyshire, UK. February.

Gary K. Smith / Greater Burdock (Arctium lappa) in flower, Norfolk, UK, July

Colin Varndell / Burdock (Arctium minus) coming into flower, Dorset, UK August

Wild Wonders of Europe / Radisics / Burdock (Arctium lappa) at sunset in Hortobagy National Park, Hungary, July 2009

Kim Taylor / Burdock (Arctium minus) seed head, UK

Kim Taylor / Burdock (Arctium minus) seed head with animal hair caught in it, UK

Roger Powell / Flock of Goldfinches (Carduelis carduelis) landing on dead Lesser Burdock (Arctium minus) seed heads to feed. Northumberland, UK

Brian Lightfoot / Lesser burdock {Arctium minus} Scotland, UK

Adrian Davies / Prickly seeds of Lesser Burdock (Arctium minus) with spiderweb, UK

Niall Benvie / Lesser burdocks {Arctium minus} in Estonian winter landscape.

Mike Wilkes / Greenfinch {Carduelis chloris} feeding on Lesser Burdock seeds {Arctium minus} Warwickshire, UK.