Lepidium draba
- Photograph, systematic position, morphology, biology, distribution, ecology and economic significance of Heart-Podded Hoary Cress, also classified as Cardaria draba.
- http://www.agroatlas.spb.ru/weeds/Cardaria_draba_en.htm

Lepidium virginicum
- Several photographs of Virginia Pepperweed.
- http://oak.ppws.vt.edu/~sforza/weeds/lepvi.html

Lepidium heterophyllum
- Two photographs of the fruits of Smiths Pepperwort and the plant's identifying features.
- http://www.plant-identification.co.uk/skye/cruciferae/lepidium-heterophyllum.htm