Surrounded by spruce Pecos wilderness, New Mexico, USA about 10,000 ft asl I want these to be Floccularia straminae, but I don't think they are. The yellow is just not bright and saturated enough. I thought of Pholiata squarrosa, but too yellow for that. Lepiota clypeolaria? Note that the last 2 photos are of a specimen that was not part of the group in the first photo and could be a different species. The spore print of that specimen is white.
stipe isn't flocculose enough for me, but it very well could be the mushroom you suggest. I've eaten this species, it wasn't great.