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Plant Identification: Not a dog tail cactus, but what?

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Forum: Plant IdentificationReplies: 6, Views: 90
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chrisqqq
Flanders, NJ

October 6, 2012
12:25 PM

Post #9297588

I was given this plant by a co-worker, who didn't know what it was. I have been told variously that it was a dog tail cactus, a monkey's tail cactus and a rat tail cactus. But its flowers don't look like the flowers on any of those cacti. They look more like oxalis flowers. The buds appear, folded up, on thin stems that shoot straight up. As the flower unfolds, the stems bend and droop. The flowers last for weeks. Also, the spines on this plant are not sharp -- they are soft, more like hairs.

Thumbnail by chrisqqq
Click the image for an enlarged view.

lroot
Hollywood, CA
(Zone 9b)

October 6, 2012
12:45 PM

Post #9297596

Those are not flowers but the leaves of an oxalis plant. There is an oxalis plant embedded somewhere in your cactus pot. As far as what type of cactus, not sure.

kwanjin

kwanjin
West Valley City, UT
(Zone 7a)

October 6, 2012
12:52 PM

Post #9297601

I agree on the leaves being of Oxalis. Somehow, it got mixed in with your cactus. The other looks more like Stapelia except for the spines.

Domehomedee

Domehomedee
Arroyo Grande, CA
(Zone 9a)

October 6, 2012
5:23 PM

Post #9297766

It looks like a rat-tail cactus to me, I got a good laugh about the oxalis "flowers".
You may have trouble getting the oxalis out . . . they are bulbs and will come back if you don't get the bulb out.
It's a nice oxalis so if you manage to remove it replant the bulbs in another pot.

themoonhowl

themoonhowl
Prairieville, LA
(Zone 9a)

October 7, 2012
7:37 AM

Post #9298367

Yes, Oxalis triangularis http://davesgarden.com/guides/pf/go/1241/

Possibly a Disocactus. http://www.desert-tropicals.com/Plants/Cactaceae/Disocactus.html
chrisqqq
Flanders, NJ

October 7, 2012
7:52 AM

Post #9298376

Thanks! You know, it never occurred to me that there were two plants in that pot. Now I know why the "flowers" looked so familiar. I'm not going to remove the Oxalis, though. I get a lot of comments on my cactus with the funky flowers!

Xenomorf

Xenomorf
Valley of the Sun, AZ
(Zone 9b)


October 7, 2012
11:18 AM

Post #9298596

Disocactus speciosus (Looks like it could use a little more light)

(4th photo down) http://www.rud-epis.de/04 RUD Epis/epis/kirsten pfeiffer.htm
(Thumbnail #12) http://www.cactusinfo.net/gallery/D/index.htm

Here is the D. speciosus page in the PlantFiles for submitting your photo to the database:
http://davesgarden.com/guides/pf/go/130329/

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