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Free app from MU Extension helps you name that weed


Curt Wohleber
University of Missouri Extension
Phone: 573-882-5409

Photos available for this release:

MU Extension's ID Weeds app helps you identify common weeds.

Credit: University of Missouri Extension

Screenshot of MU Extension's ID Weeds app.

Credit: University of Missouri Extension

The ID Weeds app helps you identify weeds by selecting plant characteristics from drop-down menus.

Credit: University of Missouri Extension

The ID Weeds app has photos and detailed information about more than 400 weeds found in Missouri.

Credit: University of Missouri Extension

Published: Friday, March 22, 2013

Story source:

Kevin Bradley, 573-882-4039

Your Show-Me Garden: MU Extension brings you gardening tips from experts around the state.

COLUMBIA, Mo. – University of Missouri Extension has a free app for iPhones, iPads and Android devices to help people easily identify weeds in the field, lawn or garden.

The app, called ID Weeds, has information on more than 400 plant species that could be encountered as weeds in crop fields, pastures, lawns, gardens or aquatic areas in Missouri and surrounding states, said Kevin Bradley, MU Extension weed scientist.

ID Weeds lets users narrow the list of suspects with a series of drop-down boxes for various plant characteristics. Don't worry if you're not familiar with technical terms such as "ligules" or "spatulate." For most characteristics, users can click on "what's this?" to see an illustration.

Clicking on "Identify" will produce a list of weeds that match the characteristics you've chosen. The more characteristics you specify, the shorter the list will be. Selecting a weed on the list brings up detailed information and one or more photographs.

You can also look up a weed by searching for its common or scientific name, or select from an alphabetical list, from "Alligatorweed" to "Yucca."

"Proper identification of weeds is important so that you choose an appropriate and cost-effective method of control," said Bradley, who is also an associate professor of plant sciences in the MU College of Agriculture, Food and Natural Resources.

Released last December, ID Weeds has averaged about 1,000 downloads per week at Apple's App Store.

The app was developed by James Meng, a programmer for MU Extension Technology and Computer Services (ETCS).

ID Weeds is compatible with iPhone, iPod Touch and iPad running iOS 5.1 or later, and devices running Android 2.2 or later.

To download:

A web version is available at

For more information about weeds and weed management: