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Photo#556561
leaf mine on arrow-leaved aster - Ophiomyia parda

leaf mine on arrow-leaved aster - Ophiomyia parda
Ledges State Park, Boone, Boone County, Iowa, USA
July 31, 2011
Size: ~1 mm wide
Narrow linear mine on upper surface of Zigzag Goldenrod (Solidago flexicaulis) Arrow-leaved Aster (Symphyotrichum sagittifolium) along wooded trail.

gathering_2011

Species now has a name!
Species now has a name!

Symphyotrichum?
I'm wondering if this plant might actually be Symphyotrichum cordifolium or something similar. That wouldn't change my placement of this photo, but I've never seen a quinta-like mine on Solidago (despite a few reports of such in the literature).

 
Correction
I agree, this is Symphyotrichum sagittifolium.

Moved
Moved from ID Request.

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