ID Weeds is produced by the University of Missouri's College of Agriculture, Food and Natural Resources' Division of Plant Science.

ID Weeds allows you to search for weeds by their common or latin name, view a list of weeds, or identify weeds based upon a number of different characteristics. Details about each weed are presented, along with photograph(s) of the weed specified.

What’s New

Version 3.0.3

Fixed bug that would not allow you to page through images when viewing weed details.

Ratings and Reviews

3.4 out of 5
11 Ratings

11 Ratings


Makes it easier to ID those annoying weeds

I've done the image search online, Wikipedia, and the like, but here it is all in one place.

Now, if I understood some of the terminology better (had to look up petiole, ochrea), the search function would probably cut my selection down to just a few, as there are 16 different characteristics to identify your weeds by. And when you open each file, there is more than one picture, showing different stages in the weeds life-cycle, along with more information about the weed than you probably wanted to know, unless you are a botanist.

The only thing it doesn't tell you is how to control or eradicate the weed, but the name of the app is ID weeds, not exterminate them.

One of my problems with the app was that some of the IDs involve pulling the weed, and I planted a wildflower seed garden, and wanted to know whether something I couldn't identify yet (no flowers yet) was something I planted or a weed.

The only reason I didn't give it 5 stars is that:
a) the thumbnails for their weed guesses are tiny, so you often have to open them all up. If they were a little larger, or zoomable (or enlarged when you hovered over them), you could save the time of opening and closing each file.
b) the first picture in each file I looked at wasn't always a close up of a mature (or at least identifiable) plant. Sometimes you had to go 3 or more pictures in to see what the plant looks like when you're likely to be pulling it.

I'd really like to give 4.5 stars, as that's not a deal breaker, just gives them something to shoot for on the next version.

Weed Hater ,

Weed identification

Couldn’t get it to identify a single weed. It didn’t even suggest possibilities, just none found. And I reside in Missouri. My weeds are not mysterious identified anomalies, there bout as common as you can get because I see them everywhere.

KStno9999 ,

Pretty Good

I think this is a solid, if not spectacular app for identifying weeds in the south central region. It walks you through a process of questions which limit your choices of possible weeds, the more criteria you select.

Found that some of the more technical questions didn't give any help to the layman except basic (sometimes very cryptic) photos. Some text explanation might be nice.

Also found that when scrolling through plant selections, it would interpret a pause in my scrolling as me choosing that plant and sending me into the detailed plant explanation.

Would really like it if all photos of plant came up when going into detail screen (current version makes me scroll through them).

Would also like if detail provided control strategies.


University of Missouri Extension
61.6 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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