![](http://www.umbc.edu/cazabon/mobile/sites/uncult11.05.22_8837v.jpg)
5/22/2011 +
Horseweed | Conyza Canadensis (mare’s tail, Canada fleabane, butter weed)
Prickly Lettuce | Lactuca serriola (compass plant)
Shepherd's Purse | Capsella bursa-pastoris (shepherd’s bag, pepper plant, shepherd’s heart, pick-pocket)
Tall Buttercup | Ranunculus acris (meadow buttercup, common buttercup, blister plant)
Yellow Woodsorrell | Oxalis stricta (sourgrass, lemon clover, sheep sorrel, common yellow oxalis)
![](http://www.umbc.edu/cazabon/mobile/map/uncult11.05.22_8837.jpg)
click to access interactive map