POTAMOGETONACEAE (Pondweed family)

Potamogeton diversifolius Raf. waterthread pondweed [US; Illinois; Jackson County; Carbondale; T9S, R1W, S32; 37 deg. 41.952'N, 89 deg. 13.844'W; 430 feet][Evergreen Park, floating along the north side of Carbondale Reservoir near the picnic area; July 8, 2002; Collected by Chuck Walker; Identified by Dr. Mark A. Basinger; #IL346]

Potamogeton illinoensis Morong Illinois pondweed [US; Kentucky; Wayne County; 36 deg. 45.64'N, 84 deg. 40.52'W ; 900 feet][submerged in midchannel; sand/gravel; Little South Fork of the Cumberland River, about 0.8 km downstream of State Route 92 bridge; July 18, 1996; Collected by Wm. J. Ploy & Donovan B. Henry; Identified by Mike Mibb; #96-001]

Potamogeton natans L. floating pondweed [US; California; Modoc County; T40N, R12E, S3; 41 deg. 25.589'N, 120 deg. 36.967'W; 5,000 feet][pond edge, Westside allotment; June 28, 2004; Collected by Matt Minarchek; Identified by Chuck Walker; #CA27]

Potamogeton nodosus Poir. longleaf pondweed [US; Illinois; Union County; T11S, R1W, S2; 37 deg. 35.891'N, 89 deg. 11.362'W; 660 feet][in pond near Post Oak trail, Giant City State Park; June 17, 2002; Collected by Chuck Walker; Identified by Dr. Mark A. Basinger; #IL315]