Yellow Patches

Safety Concerns
Not recommended/not edible
Scientific Name
Amanita flavoconia

Cap ranges from orange to yellow, with yellowish patches; stalk has crumbling patches at the base, and a ring. Grows on the ground in mixed woods. June–November. Cap convex to almost flat; bright orange to yellow with yellow patches; texture sticky, smooth. Gills broad; spacing close; whitish to yellowish; attachment free or slightly attached. Stalk thick, with large bulb at base; white to pale yellow; texture smooth to scruffy, with crumbling patches at base; has ring. Universal veil yellow, leaving yellow patches on the cap and crumbly remnants around the base of the stalk. Partial veil white to yellow, leaving a skirtlike ring on the upper stalk. Spore print white. Spores magnified are elliptical, smooth.

Lookalikes: Many other Amanita species.


Cap width: 1–3 inches; stalk length: 2–4 inches; stalk width: ¼–¾ inch.

Where To Find
image of Yellow Patches Distribution Map


Grows on the ground in mixed woods. This is a very common and quite beautiful mushroom—but because it's an amanita, it should not be eaten. Misidentification could be deadly.

Not edible. The edibility of the yellow patches has not been established. It should not be eaten because it resembles other amanita species, some of which are deadly.

Life Cycle

This species is mycorrhizal: It exists most of the time as a network of cells (mycelium) connected to tree roots, in a symbiotic (mutually beneficial) relationship with the tree. Many trees fare poorly without their fungal partners. When ready to reproduce, the mycelium sends up the mushroom aboveground—this is the reproductive structure. Spores are produced in these structures and are released to begin new mycelia elsewhere. The mycelium of a mushroom can live for decades.

Even if inedible or poisonous to humans, fungi have important roles in nature, and they possess a beauty in color and form that we can always enjoy.

This is one of many fungi that help nourish trees through symbiosis, a mutually beneficial relationship. The netlike fibers of the fungus cover the tree's roots, increasing the surface area and the roots' ability to absorb water and nutrients. In return, the tree shares nutrients with the fungus.

Media Gallery
Similar Species
About Mushrooms in Missouri

Mushrooms are a lot like plants, but they lack chlorophyll and have to take nutrients from other materials. Mushrooms are neither plants nor animals. They are in a different kingdom — the fungi. Fungi include the familiar mushroom-forming species, plus the yeasts, molds, smuts, and rusts.

Always be cautious when eating edible mushrooms. Be absolutely sure of the ID, and only eat a small amount the first time you try it to avoid a reaction..