I knew it was coming, but the back Old Hayfield "missing" stopped me in my tracks. And I reflected that it would be a good time to mow my own: the birds were done with their broods and some young shrubs and trees were taking hold.
In consideration of the wildlife, the front Old Hayfield's mowing alternates years with the back. And here spotted knapweed was still flowering.
Continuing my lap around the last field of the day, I contemplated the 60 some species of goldenrod here in the Northeast.
I came across a locust borer beetle and thoughts drifted to the goldenrod gall insects. Some use only a particular species and produce distinctive galls that make identifying the host plant trivial.
There was no problem identifying the last blossoms of wild bergamot on their own merit.
On the way home I reflected on asters: they too come in some 60 species - but I don't recall any getting galls.