background brown button caps color colour cream cultivated droplets dry fawn fleshy folded folds food fresh fungi Gills moist moisture mushroom raw shape smooth soft stalk stem texture textures variations vegetable vegetables wet wrinkled appearance cut dark diet dining edible sliced surface surfaces apricot-oyster-mushroom boletus boletus-of-the-steppes commercial cook cooking cultivar distinctive eringii French-horn-mushroom king-brown-mushroom king-oyster-mushroom king-trumpet-mushroom pleurotus-eryngii royal-trumpet savory savoury taste tasty thick trumpet-royale uncooked