About Rorippa sylvestris (L.) Besser
Nomenclature
Rorippa sylvestris (L.) Besser, commonly known as creeping yellowcress, keek, or yellow fieldcress, has the scientific synonym Radicula sylvestris (L.) Druce.
Invasive Classification
It is classified as an invasive plant species in the United States.
Introduction and Spread History
It is thought to have arrived in North America from Europe via ballast water before 1818, and spread across the continent through contaminated nursery seed stock.