Lepidium draba did not seem to follow any of the postulates of the EICA Hypothesis, as the researchers of the study understood them.

Species Profile- Whitetop (Lepidium draba), National Invasive Species Information Center, United States National Agricultural Library.

Whitetop or hoary cress (Lepidium draba L. formerly Cardaria draba) is native to western Asia and eastern Europe and is an invasive species in North America, introduced by contaminated seeds in the early 1900s.