This is a medium to large agaric, whose hat is rounded to flattened, often humped. Cap usually tinged with olive; may be brownish on disc center. Gills close. Stalk thick; stains reddish when bruised.
convex, becoming broadly convex or flat, often with a low, broad, rounded hump. Outline typically has irregular lobes or folds and splits. Cap occasionally is off center of stem. Color varies between grayish green, yellowish green, gray, blackish, copper colored, or brownish. Gills white, becoming reddish spotted, emarginate, fairly distant. Stem
mor or less equal or slightly thicker below, sometimes tapered at base; often bent. Surface smooth to fibrillose or minutely scaly; white of weakly flushed with cap colors, brownish pink at base.
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