This is a tall, sometimes massive agaric with scaly cap on a thick stem. The stem is scaly below ring. Surfaces of all parts stain yellow when handled or bruised.
hemispherical during the so-called button stage, and then expands, becoming convex and finally flat. The cap cuticle is dry, and densely covered with concentrically arranged, brown-coloured scales on a white to yellow background. The flesh is thick, firm and white and may discolour yellow when bruised. Gills
are not attached to stem, crowded and pallid at first, and turn pink then dark brown with maturity. Stem
Solid; cylindrical to club-shaped. The surface is white. Ring membranous, with patches of brownish fibrils under.
Agaricus subrefescens found in central and eastern U.S.
on the First Nature Web site.
on the MushroomExpert.Com Web site.