Stem

  • Up to 3 ft. tall and branched with lengthwise ridges along stem
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Leaves

  • Cotyledons are oblong, fleshy and hairless, often with a purplish midvein; rosette leaves are oval to lance-shaped with smooth, toothed or lobed edges (margins)
  • Stem leaves are alternate and deeply pinnate-lobed; lower leaves are larger than upper leaves; edges are covered with short, stiff hairs
common crupina
Common crupina rosette

Flower

  • Pink or purple; occur in clusters of 1-5 at the tips of branches; base of flower is vase-shaped and narrow, 3 to 4 times longer than wide
Common crupina flower
Common crupina flower

Root

  • Fibrous
Photo of common crupina stem
Common crupina stem

Other

  • Grows well under a wide range of environmental and soil conditions; often found in rangeland, pastures, waste areas, roadsides and along waterways; no known occurences in Nevada
  • Annual; reproduces by seed;
  • Listed on the Federal Noxious Weed List
Photo of common crupina flowers
 

Control

  • Grazing or mowing can increase branching and seed production and are NOT effective
  • Apply 2,4-D, dicamba or picloram to actively growing plants prior to flowering; aminocyclopyrachlor, aminopyralid, chlorsulfuron, clopyralid or metsulfuron pre or post-emergence  
Blecker, L., Creech, E., Dick, J., Gephart, S., Hefner, M., Kratsch, H., Moe, A., Schultz, B. 2020, Nevada Noxious Weed Field Guide – Common crupina, Extension, University of Nevada, Reno, Field Guide

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Also of Interest:

 
Needs Assessment for Noxious Weeds in Churchill County: Part 4 of 5 - Criteria for Herbicide Use and Selection
This fact sheet is the fourth in a series of five that reports the results of a needs assessment survey completed by faculty in University of Nevada Cooperative Extension (UNCE). The survey attempted to identify the major issues related to the management and control of weeds in N...
Davison, J., Powell, P., Schultz, B., and Singletary, L. 2012, University of Nevada Cooperative Extension
Nevada’s Priority Agricultural Weeds: Hoary Cress
Plants commonly referred to as hoary cress (Cardaria sp.), or short whitetop, are one of three different but closely related perennial forbs. The Cardaria species are widespread across all eleven Western states, including every county in Nevada.
B. Schultz, S. Foster 2021, Extension, University of Nevada, Reno, SP-21-03
African mustard plant
Nevada Noxious Weed Field Guide – African mustard
African mustard is a noxious weed that has been identified by the state of Nevada to be harmful to agriculture, the general public, or the environment. Learn more about this weed.
Blecker, L., Creech, E., Dick, J., Gephart, S., Hefner, M., H. Kratsch, Moe, A., Schultz, B. 2020, Extension, University of Nevada, Reno, Field Guide
Photo of Common St. Johnswort plant
Nevada Noxious Weed Field Guide – Common St. Johnswort
Common St. Johnswort is a noxious weed that has been identified by the state of Nevada to be harmful to agriculture, the general public, or the environment. Learn more about this weed.
Blecker, L., Creech, E., Dick, J., Gephart, S., Hefner, M., Kratsch, H., Moe, A., Schultz, B. 2020, Extension, University of Nevada, Reno, Field Guide
Photo of crimson fountaingrass plant
Nevada Noxious Weed Field Guide – Crimson fountaingrass
Crimson fountaingrass is a noxious weed that has been identified by the state of Nevada to be harmful to agriculture, the general public, or the environment. Learn more about this weed.
Blecker, L., Creech, E., Dick, J., Gephart, S., Hefner, M., Kratsch, H., Moe, A., Schultz, B. 2020, Extension, University of Nevada, Reno, Field Guide
 

Associated Programs

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Master Gardeners of Nevada

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Integrated Pest Management

Integrated Pest Management program is a long-term management strategy that uses a combination of tactics to reduce pests to tolerable levels with potentially lower costs for the pest manager and minimal effect on the environment.