Agaricus subrutilescens

Agaricus subrutilescens, also known as the wine-colored agaricus, is a mushroom of the genus "Agaricus". It was first described scientifically in 1925 as "Psalliota subrutilescens", and later transferred to "Agaricus" in 1938.
Description.
"Agaricus subrutilescens" has a cap that is across, dry, and has many and wine to brown colored fibers, especially near the center. The gills are close and white at first, turning dark brown in age. The stalk has a skirt-like ring and is long, thick, long, white, and covered with soft woolly scales. The flesh is white and does not stain, and the odor and taste is pleasant.
The purplish fibrous cap and shaggy white stem differentiate this mushroom from others which resemble it.
This mushroom is regarded variously described as an excellent edible mushroom, inedible, or responsible for causing gastric upset.
Habitat and distribution.
The mushroom fruits in undisturbed mixed woods in Western North America and Japan. It grows by itself or scattered in small clusters, often under redwood, pine, or alder.
Recently this mushroom has been identified in New Zealand and Australia.