Cap: 25-125+ mm in diameter, hemispheric to convex to nearly plane at maturity. Dark red maturing to golden brown. Fine fibrillose veil remnants when young that soon disappear. Flesh white soon bruising bluish green.
Stem: 150-350+ mm in length. Typically equal, sometimes slightly enlarged at base, sometimes contorted. Partial veil membranous leaving a persistent membranous annulus that is well dusted with purplish brown spores even before tearing away from the cap.
Gills: Attachment adnate to adnexed. Grayish coloration in young fruit bodies becoming nearly black in maturity.