Here is a picture of the rayado that my friend grows
And how he got them
I searched for this seed for over 6 years, without success. This was because it is rarely sold fresh. The norm is to smoke it. I often visited in the region it was grown. But I wasn't able to be present when they harvested, and never got around to asking to go out to the field to pick some fruit. I asked for seed. But folk always agreed and then forgot. The farmers didn't save their own seed. They had organized a pretty good sized cooperative for the production of this pepper. I was told that some years earlier, chefs from Germany learned of this pepper and asked to buy it in large quantities. The problem was, that the individual growers couldn't produce amount that the Germans considered the minimum amount to make it worth their while. So, someone organized a co-op. They had growers and someone was selected to produce the transplants. Hence, none of my friends had seed on hand when I looked. We left Mexico in 2001 and I stopped looking.
However, every year until 2010, I would return and teach in the Bible Institute, where we had served. One year (might have been around 2009) the students in one of my classes figured out that I REALLY like seeds. Some of them went home over the weekend, and when we gathered for the next module, a number of them presented me with gifts of seed from their villages. Among the gifts was an orange sized bag of Chile Rayado seed! I've grown it ever since, saving my own seed.
Can I share your picture
sure, go ahead. There is variation in between some Chile Rayados in flavor and heat. But I'm pretty sure that almost any Rayado is hotter than almost any jalapeño. I normally describe Chile Rayado as a "Jalapeño type." They're similar but not the same.
Just as an example. I've dropped 1 (one) dried Rayado in a crockpot of stew and had my wife and daughter say they can't eat it, as it's too hot. I really doubt that one chipotle would do that.
Also, where we last lived in Mexico (Ixmiquilpan, Hidalgo) they sold chipotle in the grocery stores and smoked Chile Rayado in the market. I never heard anyone interchange the names.
Incidentally, the quality of the Chile Rayado varied, in part due to its growing conditions. Most all Chile Rayado was grown in mountainous terrain. Some were grown on East facing slopes and some on West facing slopes. I was told that those which grew on a West facing slope, and caught the afternoon sun, which was hottest, were the peppers with the most heat and best flavor. Though from the same seed, the different growing conditions even made the peppers grow slightly differently. A truly experienced eye could pick out which was which, from a mixed pile.
In the Ixmiquilpan market, vendors would purchase both quality peppers and then mix them, selling little piles for a higher price than they'd otherwise get, as they treated them as if they were all the higher quality pepper. Most consumers couldn't tell. One of my son's friends could tell. He'd make the vendors mad because he'd sort the best Rayados from a couple of piles and pay the "price per pile."
It's my theory that NE Oklahoma is very much to this pepper's liking. Though we don't claim to be connoisseurs, we really believe that our dried Rayados are truly excellent. They are REALLY hot too!