Sulphur Tufts grow in clumps or tight clusters on rotting logs and stumps. The hemispherical cap can reach 6 cm (2 1⁄3 in) diameter. It is smooth and sulphur yellow with an orange-brown centre and whitish margin. The crowded gills are initially yellow but darken to a distinctive green colour as the blackish spores develop on the yellow flesh. It has a purple brown spore print. (poisonous).
Spotted on a rotting log in a moist old growth forest near the Snoqualmie river.