Kits that help people grow their own golden oyster mushrooms at home may be one reason this nonnative species is now spreading in the wild.

NPR's Mary Louise Kelly talks with mycologist Aishwarya Veerabahu about the rapid spread of golden oyster mushrooms across North America. It's the subject of a new study authored by Veerabahu.

Many mushroom species have been cultivated in North America for decades without becoming invasive species threats. However, golden oyster mushrooms have been different.