Lepidium latifolium L

Lepidium latifolium L Common Names perennial pepperweed Family Mustard Flower Color White, cream Plant Type Forb Introduced Yes Native No Weed Noxious

Perennial pepperweed (Lepidium latifolium) is native to southern Europe and Western Asia and was found in North America in the 1940’s. It can grow in a large variety of habitats but grows best in waste places, wet areas, ditches, roadsides, and croplands. Perennial pepperweed is a very common weed in the western states, and is difficult to control for two main reasons. First because there are no established biocontrol agents, and second because of the deep seated rootstocks. The main way that pepperweed spreads is through root fragmentation. Perennial pepperweed flowers from early summer to fall, and the flowers appear in dense clusters.