You are correct that your bird is not an Araucana...they are rumpless (tail-less), yellow legs, pea comb (row of peas for the comb type) and usually have ear tufts (though some don't as the ear tuft gene is lethal if both tuft genes inherited so you have to breed tuft with tuftless), and lay blue eggs. They do come in a variety of colors, but not that.
Not an Ameraucana either as they have beards and muffs (think Santa Claus), pea comb, slate grey legs, and only 8 standard colors, of which yours isn't, and lay blue eggs.
It could be an Easter Egger which would be a hybrid mix of Ameraucana -or- Araucana on one side and any other breed on the other side. EE's can look like almost anything as they are technically "mutts" and the genetics can create a wide variation among the offspring. Because of that, they can lay green, brown, blue, white, or even pink eggs...green being one of the most common colors....but only if one parent was a purebred Araucana or Ameraucana so that at least 1 blue gene was passed to the offspring (blue is dominant) and the other parent a brown layer as it takes blue over brown to create a green layer.
If the farmer had Araucanas and bred them with standard breeds, you could get something like your bird. Ameraucanas over standard usually keeps the beard and muff and creates green legs, but not always. He might have simply had EE's and bred that over standard layers...which means you've got a barnyard mix and more likely (50%) you'll not get anything other than brown eggs depending upon the genetic makeup of the EE parent.
I can't see the comb really well, but it looks like it could have a pea comb...if it is an EE, having a pea comb makes it much more likely it got the blue egg gene (the pea comb and blue egg shell color lie close on the genetic strand)...which means, depending upon whether the other side was a brown egg layer, it will lay green eggs...which is what the farmer was probably indicating.
Pretty bird....I like the color pattern....assuming that is a dilute blue with gold...(hard to tell in photo if the colors are true)...it may be an EE over a Blue Laced Red Wyandotte, but that is only speculation.
It however is not an Araucana, and that was in error by the farmer who either didn't know better or was purposely misleading.
LofMc
Here's a link to a really good article with photos to show the differences
http://www.the-chicken-chick.com/2011/09/ameraucana-easter-egger-or-araucana.html