Special mushrooms have begun to sprout in the Quad Cities. They're called "fairy rings," and they grow in grass, in groups of circles, during rainy seasons.
Martha Smith, a horticulture educator at the University of Illinois Extension, says the circles are as small as a few inches, and as large as 45 feet in diameter.
"The past couple years, we've had some pretty dry, hot fall, so they weren't popping. This year, with the weather we've had ideal conditions and it just means something below ground is decomposing and the mushrooms are popping up as the fruiting body."