What are those round white balls in the root system foxtail ferns

Question

What’s the round white balls growing off the roots of foxtail ferns

Answer 1

I love these plants and even though their called Foxtail Ferns or Myers Ferns, they actually aren’t true ferns,
These plants have very dense & fleshy roots which grow from fat tubers.
These balls, which develop where the fronds meet the underground rhizomes, are small, round growth nodules about the size of a grape. The nodules, also known as “bulbils,” usually appear near the end of the growing season, between late summer and autumn.

https://www.gardeningknowhow.com/ornamental/foliage/asparagus-fern/foxtail-asparagus-ferns.htm