Some websites, such as the MycoKey Morphing Mushroom Identifier and FungalJungal.org, offer interactive mushroom identification guides. By explaining various morphological traits, these website can narrow down possibilities and help users identify the mushroom they have found.
Mushrooms vary considerably in appearance, but no morphological trait is necessarily indicative of whether a mushroom is safe to eat or poisonous. As a result, the field of mushroom identification typically requires experience. While an online or book-based guide can provide valuable assistance, explorers must take special care before deciding whether or not a mushroom has a particular trait. Knowing whether or not a mushroom has pores or teeth under the cap, for example, is essential for proper identification.