[2] The holotype of Agaricus albolutescens was collected at Agate Beach, Oregon, by Gertrude S. Burlingham on November 21, 1937.

The surface of the apex is palled and finely striate, while the lower stipe can vary from glabrous to sparsely covered with whitish fibrils, occasionally sheathed with cottony-floccose veil remnants.

Sometimes, it fragments, leaving scattered cottony patches over a membranous-tomentose basement layer.

A. albolutescens tends to discolor tawny-brown, rather than simply yellow, and the gills are chocolate-brown and free.

[8][7] A. silvicola is very similar but has a less dramatic bruising reaction, more yellowish than tawny, a normal rather than stocky stature, and slightly smaller spores.