Its cap and stem are white. The gills are cream-colored but can be white as it matures. The spore print is white. Amanita cokeri has no distinctive smell. Cap is 7 to 15 cm; oval or convex, expanding to convex or planoconvex; white; covered with fairly large, pointed, white to brownish warts; the margin not lined.
Mycorrhizal with hardwoods or conifers; summer and fall.