Stem

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

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 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

Root

Fibrous

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

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

Extension Associated Contacts

Heidi Kratsch

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
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
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
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

Master Gardeners of Nevada

Program trains local gardeners to provide research-based horticulture information to Nevadans.

Master Gardeners of Washoe County

Master Gardeners provide free, research-based horticulture information to Nevadans.

Garden plant and pest sprayers image by Olga Seifutdinova from Getty Images

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.

Nevada Noxious Weed Field Guide – Common crupina