OPHIOGLOSSACEAE (Adder’s tongue family)

Botrychium virginianum (L.) Sw. rattlesnake fern [US; Illinois; Jackson County; Carbondale; T9S, R1W, S28; 450 feet][along road through woods, 30 m south of Lot 25, Southern Hills and 10 m west of Wall St.; May 23, 2001; Collected & identified by Chuck Walker; #IL138]