Dog-Tail Cactus (Selenicereus testudo)

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RWhiz Spring Valley, CA(Zone 10a) Feb 14, 2005

Dog-Tail Cactus
Selenicereus testudo

Don't know much about this plant. Interesting spines.

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TucsonJen Tucson, AZ(Zone 9a) Feb 14, 2005

Are the spines stiff? I don't think I've ever seen this plant. Funny name! I wonder if it wags in the wind!

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RWhiz Spring Valley, CA(Zone 10a) Feb 15, 2005

Jen, yes the spines are stiff--but crinkly looking. I think that, like a lot of Selenicereus, it will eventually have a vining habit. It's planted in bark when I got it, so I'm assuming it's epiphytic.

-Ron-

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Clare_CA Ventura, United States(Zone 10b) Feb 26, 2005

Ron, I just got one too not long ago. It does like very well draining soil. Here's a picture of what the flowers are supposed to look like:

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Clare_CA Ventura, United States(Zone 10b) Feb 26, 2005

Here's my plant:

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Clare_CA Ventura, United States(Zone 10b) Feb 26, 2005

Here's another pictures of the flowers:

Edited to say that this last picture was taken by Ulf Eliasson.


This message was edited Feb 25, 2005 8:28 PM

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Belphegor Escondido, CA Apr 08, 2018

I brought back a specimen of this plant from a mayan site in coba yucatan 7/2017. It thought it was a type of pitaya and never seen anything like it in the states. It has 3 ribs and the spines were soft, It had a wide structure and it has been climbing along a tree trunk.. My cutting did not make it maybe the ancients didn't like me taking it from the site.

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