These are San Pedro Island genetics, they are a cross between Tr cordobensis and Tr scopulicola.
T. Cordobensis History
Cordobensis is a weird Trichocereus with taxonomy a bit of a mystery. Does have a scop look to it but is found nowhere near. But, in the words of Patrick Noll:
Trichocereus cordobensis is an extremely interesting plant that probably belongs into the range of the species Trichocereus scopulicola. It is not an accepted name and there is not a description for it. The city Cordoba is in Argentina, which is far from Bolivia where Trichocereus scopulicola is endemic. It probably came from an institution called NMCR, which distributed seeds and cacti in the past 20 years. They are the source of many interesting plants, including one very spiny type of Scop that was not identical with Ritter´s original FR991. And that is probably the original source of this plant.
T. Scopulicola History
T. Scopulicola (Super Prdo) are distinctive plants with very characteristic short spines. They originate from Bolivia and was originally discovered by Friedrich Ritter. Its current status in the wild is unknown and may be extinct.
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