hi DJDetails
I got it once before from a doctor his last name is Cuevas it was not very cheap buying it from him. When I finished my order I tried to get more but they did not have it anymore. I tried to get it from his supplier (the name was still on the package) but they were not selling it anymore. It says in some websites that huereque is a cactus, but it is not really a cactus, when i did my research I found out that is actually related to squash o more like a squah. Try to research under the names of Huereque, or Guereque, or Wereque. Some words like this,in Spanish have a variable spelling because the word is originally an Aztec word, and people pronunce the word the same but they can write in different ways
I hope you can find it and
Salud
Piedro