Scientific Name
Lepidium draba L. Desv. (formerly known as Cardaria draba) (ITIS)
Common Name
Whitetop, hoary cress, whiteweed, peppergrass, heart-podded hoarycress, hoary cardaria
Native To
Eurasia (Zouhar 2004)
Date of U.S. Introduction
1800s (Zouhar 2004)
Means of Introduction
Possibly introduced as an ornamental (Zouhar 2004)
Impact
Crowds out native species and reduces crop yields (Zouhar 2004)
Hoary cress (whitetop)
Credit
Photo by Steve Dewey; Utah State University
Source
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Distribution / Maps / Survey Status
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Selected Resources
The section below contains highly relevant resources for this species, organized by source.
Council or Task Force
Partnership
Federal Government
State and Local Government
Academic
Citations
Integrated Taxonomic Information System. Lepidium draba. [Accessed Sep 28, 2023].
Zouhar, K. 2004. Cardaria spp. In: Fire Effects Information System. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory.