![](http://www.umbc.edu/cazabon/chicago/sites/uncultchicago11.07.31_0799.jpg)
7/31/2011 +
Eastern Cottonwood | Populus deltoides (eastern poplar, Carolina poplar, cotton tree, white wood)
Cutleaf Teasel | Dipsacus laciniatus (cut-leaved teasel, wild teasel, Fuller’s teasel, gypsy-combs)
Hedge Mustard | Sisymbrium officinale (hedge weed, hedgemustard)
![](http://www.umbc.edu/cazabon/chicago/map/uncultchicago11.07.31_0799.jpg)
click to access interactive map
SITES
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