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Saw this on a hike. Anyone know what this is? Leaves with horns!! | Anything about plants | Planta community

Plant Daddy

Saw this on a hike. Anyone know what this is? Leaves with horns!!

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7 comments

  1. Annai C.

    Those are "horns" like tumors. It happens when something irritates them or gets into them. 😑

    2 likes
  2. exitJiraffe

    My guess is parasitic. Looks like it’s growing off of the leaf, and not on it. My guess is if you cut those conical parts open, you’d find larva inside. Very cool.

    2 likes
  3. Mara

    Yes, they are galls. I had a hackberry tree removed because it was a magnet for woolly aphids and it’s leaves were covered in galls.

    2 likes
    • Rhonda

      Yes, galls. It can happen in the woody parts too. The ones I’ve seen on stems, branches, and trunks are rounded and look like huge warts.

      1 like
    • Mara

      Yeah it’s pretty gnarly looking. Even the berries were all deformed. Kinda gross.

      0 likes
  4. Plant Daddy

    So fascinating!

    1 like
    • Mara

      These woolly aphids were cool though. If I moved a branch, they would float in the air like pieces of fuzzy white lint.

      1 like