Poison ivy leaf, autumn color, with galls
I have been allergic to poison ivy, Toxicodendron radicans, for decades. I'm pretty good at recognizing it, and staying away from it. But I saw this plant on a walk through our neighborhood, and thought that the leaves looked sufficiently bizarre that they were worth a close photo. The plant is in its autumn colors -- poison ivy can be spectacular in the fall -- and many or all of the leaves were infected with little growths. I looked the growths up, and they are said to be galls -- part of the plant tissue, co-opted by the insect to provide protection for it -- caused by a mite, Aculops, the poison ivy leaf gall mite.
The holes were apparently due to galls on the other side of the leaf.
I enhanced the contrast a little with The Gimp.
Larger sizes available, if you want closer weirdness. I have also posted a close-up photo of a leaf from the same plant. See my comment, below, to access it.
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