What are those white mushrooms in my yard?

‘Fairy rings’ may look magical but are likely toxic

xtension Circles of white mushrooms, or “fairy rings,” may add a whimsical touch to summer lawns. But beware — they’re probably poisonous.

Brian Shaw, Ph.D., professor and associate department head for academic affairs in the Texas A&M College of Agriculture and Life Sciences Department of Plant Pathology and Microbiology, said that if you have white mushrooms growing in your yard, they’re likely false parasols, or Chlorophyllum molybdites.