Lookalikes to rule out
Ringed Conecap
deadlyA small brown lawn and mulch mushroom with rusty-brown spores and amatoxins.
Yellow Stainer
toxicAgaricus xanthodermus has free pink-to-brown gills and stains chrome yellow at the base.
Other Stropharia
cautionRelated species are smaller or have a different cap color and ring.
Identification
Young caps are wine-red to burgundy, fading to tan. Gills start grayish lilac and darken to purple-black. The thick white stem carries a ring whose upper surface is split into ridges like a cogwheel, and white cords spread at the base. Spores are dark purple-brown.
Uses and ecology
Wine caps are a popular garden mushroom, grown in wood-chip beds, and they help build soil. Wild patches appear in landscaping mulch. Pick young caps.
Memorable fact
Gardeners grow wine caps between vegetable rows, where the mycelium breaks down wood chips into compost.
