About Marasmius plicatulus Peck
This species, scientifically known as Marasmius plicatulus Peck, has a mahogany-colored cap with a velvety texture that can grow up to 4 centimetres (1+1⁄2 inches) wide. Its gills are adnate, widely spaced, and range in color from pallid to pinkish. The stipe is dark, smooth, and reaches up to 13 cm (5 in) long and 3 mm (1⁄8 in) thick. It produces a white spore print. It is considered too tough and thin to be used as an edible mushroom. It is the largest Marasmius species found on the North American West Coast. Some members of the Marasmius genus from areas further east have a vague similarity to this species. Commonly called the red pinwheel, this mushroom is often found growing in association with oak trees or conifers. It is common along the Pacific coast from November to February, and has also been observed as far inland as Idaho.
