Two Kinds of Jack O’Lanterns

Jack O’Lantern and candlelight (photo from Wikimedia Commons)

31 October 2025

Tonight’s the night for jack o’ lanterns and Trick Or Treat. Carved pumpkins glow on front porches and in the woods, far from city lights, a mushroom with the same name glows in the dark.

On my bird walk last Sunday we passed the site at Schenley Park golf course where there used to be jack o’ lantern mushrooms (Omphalotus illudens). They grew on an oak tree stump which I noted in 2021 below, but this year the stump and the mushrooms are gone, ground up and removed.

Jack o’lantern mushroom in Schenley Park, Oct 2021 (photo by Kate St. John)

Here in town we wouldn’t have seen the mushrooms glow because of city lights, but in parts of western Michigan there is very little light pollution. West Michigan’s WOODTV featured them in the video below.

video embedded from WOODTV8 on YouTube

And yes these mushrooms are poisonous. Learn more in this vintage article:

Happy Halloween!

Jack O’Lantern (photo from Wikimedia Commons)

2 thoughts on “Two Kinds of Jack O’Lanterns

  1. Every year since we cut down our diseased oak trees, we have had these mushrooms growing in our front yard. This year there has been multiple crops of them. I think they are beautiful, but not my wife, who regularly digs them up!

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