United States, Illinois, Cook, In the SW quadrant of the I-80 interchange of I-57, W of Country Club Hills.
Flower: N Fruit: Y Vegetation: Y Bud: N
Many plants Also extremely abundant at the intersection of I-57 and US 30, W of Matteson, Cook Co., IL. A search along I-80 and I-57 in Will Co. turned up none, though it is to be expected.