Conservation Status: Not of concern
Like clock-work in late winter to early spring, an amanita in the Amanita pantherina complex appears, especially in urban areas. Other members of this group fruit through summer and fall in a variety of habitats. They come in a variety of color forms, from pale yellowish tan ones that are similar to A. gemmata to dark brown ones that are more like classical European A. pantherina. The mushrooms are medium-sized or larger, the cap has striations on the margin, and the universal veil leaves conspicuous whitish warts and patches on the cap and a close-fitting volva with a distinct free rim (like slightly rolling back the top of a sock) around the bulbous stipe base. The gills are white and closely spaced, and the partial veil is white and leaves a skirt-like ring on the stipe. A. pantherina causes a number of accidental human and dog poisonings, especially puppies, and also is consumed intentionally for its psychoactive effects. Typically the ibotenic acid concentrations are higher in this species than in A. muscaria, and are highest in the dark brown forms. Here, again, applying a European name to a western North American mushroom might be incorrect. Our mushrooms may well not be “real” A. pantherina.