![UCD Environmental Horticulture on X: "Thought this was a fungus in the crotch of this Birch but it's expanding foam. Not sure why, maybe to keep water from sitting in the crotch? UCD Environmental Horticulture on X: "Thought this was a fungus in the crotch of this Birch but it's expanding foam. Not sure why, maybe to keep water from sitting in the crotch?](https://pbs.twimg.com/media/DCeFk49UAAEanfk.jpg)
UCD Environmental Horticulture on X: "Thought this was a fungus in the crotch of this Birch but it's expanding foam. Not sure why, maybe to keep water from sitting in the crotch?
![Phoenix, Arizona, USA — ID on this white insulation foam-like fungus after high humidity / rain ? : r/mycology Phoenix, Arizona, USA — ID on this white insulation foam-like fungus after high humidity / rain ? : r/mycology](https://i.redd.it/z7phl9nty1e71.jpg)
Phoenix, Arizona, USA — ID on this white insulation foam-like fungus after high humidity / rain ? : r/mycology
![A fungal ally but not a fungus, but figured I'd share. I'm pretty sure this is the first slime mold I've ever seen. It looks like that spray foam insulation out of A fungal ally but not a fungus, but figured I'd share. I'm pretty sure this is the first slime mold I've ever seen. It looks like that spray foam insulation out of](https://i.redd.it/1sxrsn0yv8c51.jpg)
A fungal ally but not a fungus, but figured I'd share. I'm pretty sure this is the first slime mold I've ever seen. It looks like that spray foam insulation out of
![Amazon.com: White Foam Mushroom Mushrooms: 5pcs DIY Polystyrene Crafts Modelling Mushrooms Foam Shapes Molds for Fairy Garden Micro Landscape : Arts, Crafts & Sewing Amazon.com: White Foam Mushroom Mushrooms: 5pcs DIY Polystyrene Crafts Modelling Mushrooms Foam Shapes Molds for Fairy Garden Micro Landscape : Arts, Crafts & Sewing](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/41P9aYFbwIL.jpg)
Amazon.com: White Foam Mushroom Mushrooms: 5pcs DIY Polystyrene Crafts Modelling Mushrooms Foam Shapes Molds for Fairy Garden Micro Landscape : Arts, Crafts & Sewing
![Artificial Plant Mushroom Fungus Foam Fake Fruit Bark Decoration Garden Decoration Fake Plant with Pot Green Ornament - AliExpress Artificial Plant Mushroom Fungus Foam Fake Fruit Bark Decoration Garden Decoration Fake Plant with Pot Green Ornament - AliExpress](https://ae01.alicdn.com/kf/S76ee01e4d4714a21b339e13694c5c3fem.jpg_640x640Q90.jpg_.webp)
Artificial Plant Mushroom Fungus Foam Fake Fruit Bark Decoration Garden Decoration Fake Plant with Pot Green Ornament - AliExpress
![FAQ - Sometimes I get mold on top of my mulch. What is it, and is it harmful? : | Greenville, Spartanburg, Boiling Springs, SC | Southern Mulch FAQ - Sometimes I get mold on top of my mulch. What is it, and is it harmful? : | Greenville, Spartanburg, Boiling Springs, SC | Southern Mulch](http://www.southernmulch.com/myimages/634px_slime_mold.jpg)
FAQ - Sometimes I get mold on top of my mulch. What is it, and is it harmful? : | Greenville, Spartanburg, Boiling Springs, SC | Southern Mulch
![FAQ - Sometimes I get mold on top of my mulch. What is it, and is it harmful? : | Greenville, Spartanburg, Boiling Springs, SC | Southern Mulch FAQ - Sometimes I get mold on top of my mulch. What is it, and is it harmful? : | Greenville, Spartanburg, Boiling Springs, SC | Southern Mulch](http://www.southernmulch.com/myimages/800px_dog_vomit_slime_mold.jpg)
FAQ - Sometimes I get mold on top of my mulch. What is it, and is it harmful? : | Greenville, Spartanburg, Boiling Springs, SC | Southern Mulch
![Found this weird foam growing in my uncle's lawn, Porterville CA. He said its a fungus but can a fungus grow that much overnight? It was not there yesterday : r/whatisthisthing Found this weird foam growing in my uncle's lawn, Porterville CA. He said its a fungus but can a fungus grow that much overnight? It was not there yesterday : r/whatisthisthing](https://i.redd.it/b95a6z6en3d11.jpg)