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Ferns also #681494 - Ask Extension


Ferns also #681494

Asked February 22, 2021, 8:29 PM EST

My previous question was about my mimosa tree, right next to is my fern. All 3 ferns look diseased also. Crooked leaves and bumps. Help!

Lane County Oregon

Expert Response

The fern looks fine as well. Yes, the leaves might get a bit crooked but the new fronds will be fine when they unfurl this spring. The bumps on the underside are normal structures called sori where spores come out of the leaf. It is how the ferns reproduce. Search on Google for "fern sori" and you will see many images for lots of different ferns.

Jay Pscheidt Replied February 23, 2021, 9:39 AM EST

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