“Creeks and wildflowers may have disappeared for the season, but there’s still plenty of wonderful nature to explore and enjoy, and fall is an especially ideal time to look for all sorts of plant galls, some of nature’s most unusual creations. We’ll explore various plant communities to look for these structures that are in an unusual relationship between plant, animal, and usually a type of insect. We will hope to see the striped volcano, witch’s hat, spined turban, urchin, willow leaf, spiny leaf and “oak apple” galls.”

Details: Fall for Galls 2024 | Jack London State Historic Park (jacklondonpark.com)