Random invasive species images that represents what NISIC does
USDA.gov NAL NISIC Sudden oak death Formosan subterranean termite Yellow star thistle Giant African snail Cactus moth Purple loosestrife
HomeAbout National Invasive Species Information Center (NISIC)News and EventscouncilHelpContact Us
 Search the National Invasive Species Information Center
   
Search all USDA
Advanced Search
Search Tips
Browse by Geography
United States
International
Browse by Subject
Aquatic Species
Plants
Animals
Microbes
Economic Impacts
Laws and Regulations
Manager's Tool Kit
Resource Library
 
You are here: Home / Plants / Species Profiles / Whitetop
Plants
  
Species Profiles

Whitetop

WhitetopScientific name: Lepidium draba L. (formerly known as Cardaria draba) (ITIS)

Common names: Whitetop, hoary cress, whiteweed, peppergrass, heart-podded hoarycress, hoary cardaria

Click image to enlarge

Selected Resources

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)

Current U.S. Distribution:

Images:

Selected Resources:

Back to Top

Council

Invasive Plants of California's Wildlands - Cardaria draba
California Invasive Plant Council.
Bossard, C.C., J.M. Randall, and M.C. Hoshovsky (Editors). 2000. Invasive Plants of California's Wildlands. University of California Press. Berkeley, CA

Partnership

Invasive Plant Atlas of the United States - Hoary Cress
University of Georgia. Center for Invasive Species and Ecosystem Health.

Invasive Species Compendium - Lepidium draba
CAB International.

Government

Cardaria draba (L.) Desv. - Noxious and Nuisance Plant Management Information Systems (PMIS)
DOD. USACE. Engineer Research and Development Center. Environmental Laboratory.

Hoary Cress Consortium
USDA. ARS. Northern Plains Agricultural Research Laboratory.

Lepidium draba L. - Germplasm Resources Information Network (GRIN)
USDA. ARS. National Genetic Resources Program.

Cardaria spp. - Fire Effects Information System (FEIS)
USDA. FS. Rocky Mountain Research Station. Fire Sciences Laboratory.

PLANTS Database - Whitetop
USDA. NRCS. National Plant Data Center.

Hoary Cress - Information Notes
Victoria Department of Primary Industries (Australia).

Hoary Cress - Guide to Weeds in British Columbia (PDF | 159 KB)
British Columbia Ministry of Agriculture Food and Fisheries (Canada).

State

Cardaria genus - EncycloWeedia
California Department of Food and Agriculture.

Hoary Cress Identification and Management (May 2009; PDF | 967 KB)
Colorado Department of Agriculture. Conservation Services Division.

Whitetop / Hoary Cress - Best Management Practices Weed Profile (PDF | 207 KB)
Colorado State Parks.

Class C Noxious Weed: Hoary Cress (Written Findings)
Washington State Noxious Weed Control Board.

Hoary Cress Whitetop: Options for Control (PDF | 1.04 MB)
Lincoln County Noxious Weed Control Board (Washington).

Academic

Weed Control in Natural Areas in the Western United States: Hoary Cress (Whitetop), Lens-Podded and Hairy Whitetop (2013; PDF | 252 KB)
University of California. Weed Research and Information Center.

Managing Hoary Cress (PDF | 357 KB)
University of Nevada - Reno. Cooperative Extension.

Professional

Hoary Cress
Colorado Weed Management Association.

Weed Identification - Hoary Cress (Whitetop)
Montana Weed Control Association.

Citations

Integrated Taxonomic Information System. Lepidium draba. [Accessed Sep 10, 2014].

Zouhar, K. 2004. Cardaria spp. In: Fire Effects Information System. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory.

Back to Top
Last Modified: Aug 24, 2015
 
Bookmark and Share
I Want To
    Read Recent News Articles
    Find Management Plans
    Locate Images
    Find Experts
   

More ...

Plants
    Species Profiles
    Databases
    Discussion Groups
    Economic Impacts
    Educational Resources
    Image Galleries
    Frequently Asked Questions
    Management
    Publications
    What You Can Do
Media Help
 To view PDF files you must have Adobe Acrobat Reader installed on your computer.

To view Flash files you must  have Macromedia Flash Player installed on your computer.

 NISIC Home | NAL Home | USDA | AgNIC | Agricultural Research Service | Web Policies and Important Links | Site Map
FOIA | Accessibility Statement| Privacy Policy | Non-Discrimination Statement | Information Quality | USA.gov | White House