According to Iowa State University's Horticulture and Home Pest News, Leucocoprinus birnbaumii is the most common species of yellow mushroom in houseplants. Sometimes called the "yellow houseplant ...

Cancel anytime. Yellow parasol mushroom sclerotia growing on dead orchid roots and bark (left) and young mushrooms (right). Scot Nelson (right) Q: I repotted some houseplants a few months ago and ...