Ninebark

Physocarpus opifolius

Habitat: Eastern Deciduous Forest

Seasons: Year round

Active Chemical Ingredient

Euscaphic Acid

https://en.wikipedia.org/wiki/Euscaphic-Acid

Use of specimen: A tea made from the inner bark can be used as a laxative 

Source: http://www.pfaf.org/user/Plant.aspx?LatinName=Physocarpus+opulifolius