The poisonous Chlorophyllum molybdites
is similar in appearance but is rare to absent in Washington. It differs in that the gills are greenish when mature and the spore deposit is greenish. The edible Chlorophyllum brunneum
differs in that the cap has brownish scales on a white background rather than on a brownish background and the stem exhibits a simple ring rather than a double-edged ring. The edible Chlorophyllum rhacodes
differs in that the cap has brownish scales on a white background rather than a brownish background.
See also Coprinus comatus