Rauhocereus or not Rauhocereus?

If you have a cactus plant and need help identifying it, this is the place to post it.
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Minime8484
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Joined: Thu May 12, 2011 12:09 am
Location: Chandler, AZ

Rauhocereus or not Rauhocereus?

Post by Minime8484 »

I've been growing the following plant for years, and based on comparison with others of this species, photos, and descriptions, it is definitely correctly identified as Rauhocereus riosaniensis:
Rauhocereus riosaniensis 1
Rauhocereus riosaniensis 1
23476568_10214932906781000_604524275_n.jpg (139.73 KiB) Viewed 542 times
A couple of years ago, I purchased this plant on eBay from a reputable seller under the same name (Rauhocereus riosaniensis):
Rauhocereus riosaniensis 2
Rauhocereus riosaniensis 2
23476741_10214932906540994_428364766_n.jpg (137.32 KiB) Viewed 542 times
I figured as it grew it would come to resemble my other plant.
It has not. The more it grows, the less sure I am that it is correctly identified.
Anyone have any thoughts as to the ID of the second plant?
I'm at a loss.

Thanks in advance!
Tristan
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