Rounded Earthstar (Geastrum saccatum): Though these mushrooms are quite common, they are bizarre-looking due to their uncanny resemblance to the classic peanut butter blossom cookie. However, unlike the delicious baked goods, the Rounded Earthstar is bitter and largely inedible. Geastrum saccatum,, as it is known in the scientific community, is found globally, growing on rotten wood. In Brazil, its common name translates to "star of the land" for its distinctive star-like cap and skirt. The base arms of this mushroom often crack as they bend back to expose the hole that releases the spores. The rest of the body gradually turns a dark brown in color as the spores, which are rounded and have warts, mature.