What is this growing on my grass?

Asked August 14, 2017, 2:04 PM EDT

This growth that seems to be growing on the side of our lawn, the original color was white but turned into a brown color, it hard and not very soft

Los Angeles County California lawns and turf plant identification horticulture

1 Response

This looks like dog vomit fungus from the images. It can be white, cream or yellow in the beginning and turn various shades of brown over time. It usually occurs in mulched areas, but could grow anywhere there is organic material decaying near the soil surface. See if this description matches up with what you have:
http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=24159