Stropharia Rugosoannulata, commonly known as the Wine Cap Stropharia, "garden giant", burgundy mushroom or King Stropharia, is an agaric of the family Strophariaceae found in Europe, North America, Australia, New Zealand, and South America.
This species of Fungi has long been grown alongside certain crops like corn as it is able to immobilize and digest nematodes which can ruin a corn crop. Wine Cap is also regarded as a choice culinary mushroom, recommended to be served grilled or thinly sliced and sautéed in butter. Due to its consistency and taste it can be used as a replacement for seafood in many recipes.
The king stropharia can grow to 20 cm high with a reddish-brown convex to flattening cap up to 30 cm across, the size leading to another colloquial name - godzilla mushroom. The gills are initially pale, then grey, and finally dark purple-brown in colour. The stem often is vibrant white in young specimens and discolours yellowish with age.