Stropharia ambigua (Pk.) Zeller Cap 5-15cm across, convex to broadly umbonate; pale yellow to bright ochre; smooth, but with veil remnants at margin. Gills adnate, crowded; pale gray then soon purplish brown. Stem 75-150 x 10-20mm; white with fibrillose-scaly covering below faint ring zone; with many white rhizomorphs at base. Flesh white. Odor not distinctive. Taste not distinctive. Spores ellipsoid, smooth, with germ pore at tip, 11-14 x 6-7.5µ. Deposit purple-brown. Habitat in conifer woods. Often numerous. Found in the Pacific Northwest and on the California coast. Season August-November. Edibility not known suspect.