Turtleheads get that name from their pollination process. They're visited by bumble bees or other larger bugs. They have to fight their way into a flower past the upraised lip. The process looks very much like the flower is chewing on the bee. After the turtle and the bee are satisfied, on to the next flower. Of course, the bee gets chewed again on its way out. White turtleheads occur in wet ground in AL, AR, CT, DE, GA, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY(V), OH, PA, RI, SC, TN, VA, VT, WI, WV, MB, NB, NF, NS, ON, PE, QC, and on SPM. Ives Fen Preserve, Lenawee Co MI, 9/17/11.