Cardaminopsis petraea
- Several photographs and a description of Northern Rock-cress, also classified as Arabis petraea.
- http://www.plant-identification.co.uk/skye/cruciferae/cardaminopsis-petraea.htm

Arabis alpina
- Several photographs of Alpine Rockcress and its description.
- http://www.plant-identification.co.uk/skye/cruciferae/arabis-alpina.htm

Arabis hirsuta
- Several photographs of Hairy Rockcress and its identifying features.
- http://www.plant-identification.co.uk/skye/cruciferae/arabis-hirsuta.htm

Arabis lyrata (Lyrate Rockcress)
- Images, distribution map, scientific classification, conservation status, and wetland indicator status.
- http://plants.usda.gov/java/profile?symbol=ARLY2