A Close-up View of the Lesser Burdock
- Photographic study by Brian Johnston of the common weed Arctium minus, with fine images of the plant on a macroscopic and microscopic scale.
- http://www.microscopy-uk.org.uk/mag/artaug04/bjburdock.html

Arctium minus
- Several photographs of Lesser Burdock and some identifying features.
- http://www.plant-identification.co.uk/skye/compositae/arctium-minus.htm

Arctium lappa (Burdock)
- Description and medicinal uses.
- http://www.botanical.com/botanical/mgmh/b/burdoc87.html