BRIEF DESCRIPTION: The cap of A. flavivolva is 40 - 53 mm wide, plano-convex, pale yellow to yellow with a grayish yellow to brownish orange disc; it is whitish on the nonstriate, nonappendiculate margin. The cap is up to 3 mm thick above the stem. The volval remnants are friable and yellow (fading to whitish or tan) and easily lost.

The gills are narrowly adnexed to subadnate to just free, crowded, white, and up to 5 mm broad. Short gills are present, but their shape has not yet been recorded.

The stem is 65 - 80 x 4 - 11 mm, white, discoloring watery brown from handling, cylindric or narrowing upward, with a slightly flaring apex, and white. The stipe's bulb is reported as ovoid and 18 x 14 mm. The flesh is white and solid. The annulus is superior, pendant, white, with yellow volva on the margin. The volva is yellowish and may be present as a slight pulverulence on the top of the stipe's bulb.

Odor is reported to be lacking

The spores measure (6.5-) 7.5 - 8.5 (-9.2) x 4.8 - 5.5 (-5.8) µm and are amyloid and ellipsoid to elongate. Clamps are absent at bases of basidia.

Amanita flavivolva was originally described from Florida. It is reported to be associated with pines.