help id this cactus at my farm in India

If you have a cactus plant and need help identifying it, this is the place to post it.
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cactusveda1
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help id this cactus at my farm in India

Post by cactusveda1 »

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greenknight
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Re: help id this cactus at my farm in India

Post by greenknight »

Looks like Acanthocereus tetragonus.
Spence :mrgreen:
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cactusveda1
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Re: help id this cactus at my farm in India

Post by cactusveda1 »

This is behaving like a creeper or like a hanging one and never stands tall.
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BryanT
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Re: help id this cactus at my farm in India

Post by BryanT »

I think it's a young dragon fruit plant, possible Hylocereus undatus.
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anttisepp
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Re: help id this cactus at my farm in India

Post by anttisepp »

Some juvenile forest cereus - Hylocereus (eg undatus, polyrhizus, trigonus etc) or Selenicereus (eg testudo, megalanthus). Time will show when it will grow adult stems and flowers and later fruits.
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cactusveda1
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Re: help id this cactus at my farm in India

Post by cactusveda1 »

As i see it for many years, its not growing big stem but is creeping along the ground. By any chance its the species growing on trees which hangs down along stems gripping by its roots?
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BryanT
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Re: help id this cactus at my farm in India

Post by BryanT »

cactusveda1 wrote: Mon Aug 22, 2022 5:16 pm As i see it for many years, its not growing big stem but is creeping along the ground. By any chance its the species growing on trees which hangs down along stems gripping by its roots?
Have a look at couple of information link here:
https://www.gardenia.net/plant/hylocereus-undatus
http://www.llifle.com/Encyclopedia/CAC ... us_undatus
Bryan
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cactusveda1
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Re: help id this cactus at my farm in India

Post by cactusveda1 »

Thanks for the links and info. Only question still in my mind is most of these dragonfruit plants are spineless inspite of being in hot sun and most of them are growing big stems faster, mine is very spiny and with thin stem as well over many years
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BryanT
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Re: help id this cactus at my farm in India

Post by BryanT »

cactusveda1 wrote: Tue Aug 23, 2022 1:44 am Thanks for the links and info. Only question still in my mind is most of these dragonfruit plants are spineless inspite of being in hot sun and most of them are growing big stems faster, mine is very spiny and with thin stem as well over many years
They are not spineless. When they are young, the soft hairy spines are obvious. When they mature, they lose the fine hairy spines, but still have the short and sharp spines.
Bryan
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MrXeric
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Re: help id this cactus at my farm in India

Post by MrXeric »

cactusveda1 wrote: Tue Aug 23, 2022 1:44 am Thanks for the links and info. Only question still in my mind is most of these dragonfruit plants are spineless inspite of being in hot sun and most of them are growing big stems faster, mine is very spiny and with thin stem as well over many years
Hello, your plant may be Deamia testudo (=Strophocactus testudo?), which is more commonly known as Selenicereus testudo.
DaveW
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Re: help id this cactus at my farm in India

Post by DaveW »

As with all plant identification flowers help in determining genus, since some look similar out of flower.
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