Conservation Status: Not of concern
A very large species in the vaginata group, can be one of the more spectacular amanitas in the PNW. Its cap is large, brown to very dark brown, sometimes paler near the margin, and always with long striations at the margin. The gills are white with distinct gray to brown edges, and develop orange-brown stains in age. The stipe is long and thick, with a white to brownish fibrillose-scaly surface. The base is surrounded by a large, thick, felty, volva, that is white at first but soon develops rust to brown or yellow colors, and in age can be entirely rust-colored. There is no ring.