Goldenrod galls from Jonelle South Carolina

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I found this plant in our pasture near Peters Creek. It was growing amongst other assorted tall plants & grasses.

Hi Jonelle,

this looks like a goldenrod, probably Solidago altissima, infested with two kinds of galls – usually caused by the goldenrod gall fly. The swollen one is sometimes called the goldenrod ball gall. I am not an entomologist, so I really don’t know anything about the insects that cause these but they are very common.


Dr. Steven Hill, Botanist, SCNPS


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