Rukkhashava Mushrooms in Genshin Impact are a useful ascension material for some of the new characters of the Dendro-themed Sumeru region. As such, you can find Rukkhashava Mushrooms in sheltered, forested areas around Sumeru. Here are the best places to look.
Rukkhashava Mushrooms location map
Rukkhashava Mushrooms grow in sheltered areas around Sumeru, sometimes on trees, so if you head to a Rukkhashava Mushrooms location below and don't see anything, check a tree nearby.
The best place to farm Rukkhashava Mushrooms is the Mawtiyima Forest in the Lokapala Jungle area to the north east of Sumeru – the big mushroom forest. You'll find them growing on the ground at the side of paths, though in other places around the map they will be growing on trees.
If you're looking for more easy maps to find ascension materials and resources in Genshin Impact's Sumeru region, check out our other guides from the 3.0 update here.
You can find more useful material locations and helpful hints using the Genshin Impact interactive map (which isn't the official one, but we find this one to be a bit more accurate and has notes from other people helping you find what you're looking for).
Hopefully this map makes farming Rukkhashava Mushrooms in Genshin Impact much more bearable while you level up your Sumeru characters.