My yard is covered in yellow this time of year with plants growing wild.

Well, I've had more fun searching!

The closest I can find is Chrysopsis scabrella.. but I can't see the close detail of leaves and stems.

http://www.plantbook.org/plant...

It's in your area although not listed on the local site..

http://luirig.altervista.org/s...

There's also Chrysopsis subulata but the flowers droop on that.

I'm so happy we can entertain you! For some reason I can't pull up the 2nd link, but looking at the 1st I do believe that it is scabrella..

Colder weather can be blamed!

From a disyance it looks correct, you will know what it looks like in person.