From what I can see in the photo this appears to be prickly lettuce (Lactuca serriola).

The plant initially forms a basal rosette of leaves. Young leaves on rosettes are club-shaped with spiny, wavy or lobed margins.  As it ages it develops a upright stem with leaves that look much more thistle-like.  More information about this plant can be found here: https://crops.extension.iastate.edu/encyclopedia/prickly-lettuce

It grows as both a summer and winter annual.  Some seeds germinate in spring, grow, flower, set seed, and die by fall.  Others will germinate in summer or fall, overwinter as a small plant, then grow more the following spring, flower, set seed, and die in late spring or early summer.  

This link provides information on how to control this annual weed.  https://hortnews.extension.iastate.edu/faq/how-do-i-manage-annual-weeds

Further questions can be directed to your local county Extension office. This local resource can be very helpful since they are familiar with trends and issues in your part of the state. Click on this link to get connected with the Cedar county Extension office and ask your gardening question. https://hortnews.extension.iastate.edu/ask-gardening-question

Happy gardening!
--Aaron