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Name: Karen
NM , AZ (Zone 7b)
Region: New Mexico Region: Arizona Greenhouse Cactus and Succulents Adeniums Garden Art
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plantmanager
Jan 12, 2016 3:46 PM CST
I have what was called a pencil cactus. I haven't found out which one it is. Anyone know?


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Name: Hetty
Sunny Naples, Florida (Zone 10a)
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Dutchlady1
Jan 12, 2016 3:47 PM CST
Usually what is referred to as 'Pencil Cactus' is Euphorbia tirucalli. Not a cactus.
I haven't seen your cactus before but it is very pretty!
Name: Ibis
Florida, Orlando-ish (Zone 9b)
Region: Florida Tropicals Bromeliad Orchids Container Gardener Foliage Fan
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IbisFla
Jan 12, 2016 4:07 PM CST
All I've ever seen is the Euphorbia Tirucalli, but there's also some called Pencil Cholla. There aren't a lot of pictures, but take a look -
http://garden.org/plants/search/text.php?q=pencil+cholla&but...
Name: Karen
NM , AZ (Zone 7b)
Region: New Mexico Region: Arizona Greenhouse Cactus and Succulents Adeniums Garden Art
Plumerias Hibiscus Houseplants Plant Lover: Loves 'em all! Dog Lover Cat Lover
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plantmanager
Jan 12, 2016 4:08 PM CST
I agree about the Euphorbia tirucalli being called that also. This one is super easy to grow. A few pieces fell off and they rooted and started growing quickly. I have it outdoors in 7b and it's totally happy. I found something similar called Cylindropuntia kleiniae.
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Name: Ibis
Florida, Orlando-ish (Zone 9b)
Region: Florida Tropicals Bromeliad Orchids Container Gardener Foliage Fan
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IbisFla
Jan 12, 2016 4:15 PM CST
There are some serious spines on those, but they are beautiful.
Name: Deborah Pryor
Orangeburg, SC Zone 8a (Zone 8a)
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Deebie
Jan 13, 2016 10:46 AM CST
I agree with Ibis, it looks a lot like Diamond Cholla (Cylindropuntia ramosissima)
Name: Karen
NM , AZ (Zone 7b)
Region: New Mexico Region: Arizona Greenhouse Cactus and Succulents Adeniums Garden Art
Plumerias Hibiscus Houseplants Plant Lover: Loves 'em all! Dog Lover Cat Lover
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plantmanager
Jan 13, 2016 10:55 AM CST
It does look like that Deb, but the spines on mine aren't quite as heavy or long. I guess it could be due to growing conditions being different. A lot of the cacti and succulent vary due to different conditions and care.
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Name: Deborah Pryor
Orangeburg, SC Zone 8a (Zone 8a)
Don't Sweat the Small Stuff!
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Deebie
Jan 13, 2016 1:18 PM CST
Let's see if @Baja_Costero has any ideas.
Name: Baja
Baja California (Zone 11b)
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Baja_Costero
Jan 13, 2016 1:40 PM CST
Looks like a cholla, Cylindropuntia, but I don't know which one.
Name: Karen
NM , AZ (Zone 7b)
Region: New Mexico Region: Arizona Greenhouse Cactus and Succulents Adeniums Garden Art
Plumerias Hibiscus Houseplants Plant Lover: Loves 'em all! Dog Lover Cat Lover
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plantmanager
Jan 13, 2016 1:46 PM CST
I wrote High Country Gardens and they said they'd be happy to ID it, so I just sent them the pics. I'll let you know when I hear.
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Name: Thijs van Soest
Mesa, AZ (Zone 9b)
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mcvansoest
Jan 15, 2016 2:00 PM CST
Deebie is pretty much correct, it is cylindropuntia ramosissima var. nudum (as in [mostly] spineless) and AFAIK it is called the 'Diamond Cholla', following the pattern on the stems. Indeed the name 'Pencil Cholla' is usually reserved for C. kleiniae.

I have this growing in my yard and the plant came from the Phoenix Desert Botanical Garden. It occurs in the wild in southern Arizona and presumably across the border in Mexico. Is extremely drought tolerant and has really pretty flowers as apparent from the picture in the OP. The spined version is does really cool things with the light if it catches low angle sun... when I get home I will try and find the picture and post it to demonstrate that...


Name: Karen
NM , AZ (Zone 7b)
Region: New Mexico Region: Arizona Greenhouse Cactus and Succulents Adeniums Garden Art
Plumerias Hibiscus Houseplants Plant Lover: Loves 'em all! Dog Lover Cat Lover
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plantmanager
Jan 15, 2016 2:05 PM CST
I'd love to see a pic of the one you have in your yard!
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Name: Thijs van Soest
Mesa, AZ (Zone 9b)
Adeniums Enjoys or suffers hot summers Cactus and Succulents Container Gardener Hummingbirder Xeriscape
Region: Arizona Region: Southwest Gardening Seed Starter Plant and/or Seed Trader Cat Lover Dog Lover
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mcvansoest
Jan 15, 2016 8:12 PM CST
OK my post just went missing so if there end up being two with the same pictures, sorry!

The first pic is of the plant I have, the pic is about 3 years old since then I have only flower pics, the plant has grown some. The second pic is of the spiny variety that with the right light angle looks really really good.






Name: Karen
NM , AZ (Zone 7b)
Region: New Mexico Region: Arizona Greenhouse Cactus and Succulents Adeniums Garden Art
Plumerias Hibiscus Houseplants Plant Lover: Loves 'em all! Dog Lover Cat Lover
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plantmanager
Jan 15, 2016 9:19 PM CST
Your first pic is just like mine, and I see what you mean about the one in the second pic. Very nice!
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