appearance background brown caps color colour cream cut dark dry edible field-mushrooms fleshy folded folds food fresh fungi Gills large mushroom mushrooms quality quantity raw shape smooth soft stalk stem surface surfaces texture textures variations vegetable vegetables white wrinkled fawn agricultural agriculture all-year vegetable butternut butternut pumpkin butternut squash colors colours cucurbita cucurbita moschata fruit hard nutty orange patterns pulp pumpkin rind shapes skin squash sweet vine winter squash yellow