Home Plant List

Malheur Experiment Station
Oregon State University

Lepidium latifolium L

perennial pepperweed (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 L) 
perennial pepperweed (Lepidium latifolium L)
perennial pepperweed (Lepidium latifolium L)
perennial pepperweed (Lepidium latifolium L)
perennial pepperweed (Lepidium latifolium L) perennial pepperweed (Lepidium latifolium L)

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.


For additional information please send an e-mail request to:
Dr. Clinton C. Shock
Clinton.Shock@oregonstate.edu

Malheur Agricultural Experiment Station
595 Onion Avenue
Ontario, OR 97914
(541) 889-2174
FAX (541) 889-7831

Malheur Experiment Station Web Site Purpose and Policy OSU Home Page OSU disclaimer