![](http://www.umbc.edu/cazabon/DC/sites/uncult12.04.01_4939V.jpg)
4/1/2012 +
Common Groundsel | Senecio vulgaris (ground glutton, chickenweed, grmisel, ragwort)
Crown Vetch | Coronilla varia (purple corwnvetch, purple vetch, crownvetch)
Horseweed | Conyza Canadensis (mare’s tail, Canada fleabane, butter weed)
Prickly Lettuce | Lactuca serriola (compass plant)
![](http://www.umbc.edu/cazabon/DC/map/uncult12.04.01_4939.jpg)
click to access interactive map
SITES
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