Nuphar advena

Family:  Nymphaeaceae 
Common Names: Common Spatterdock, Yellow Cow Lily, Yellow Pond Lily, Spatterdock

Native to USA: AL, AR, CT, DC, DE, FL, GA, IL, KS, KY, LA, MA MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA,SC, TN, TX, VA, VT, WI, WV
Native to CAN: ON

Additional Resources:
Flora of North America