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What is it?

Posted by vignaguy Z6B PA (My Page) on
Thu, Jul 26, 12 at 13:01

Any ideas? Found it while hiking in York county, PA.

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RE: What is it?

I think they are insect galls on a sumac leaf. When some bugs feed on a plant the plant reacts by forming this kind of big puffy growth, the bugs use it as protection and live inside.... I don't think the plant gets anything good out of the deal.

Here is a link that might be useful: Sumac galls

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