Please help me ID this Gymnocalycium

If you have a cactus plant and need help identifying it, this is the place to post it.
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hiawog
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Location: Houston, TX, USA (humid subtropical)

Please help me ID this Gymnocalycium

Post by hiawog »

This guy is not in the best shape...please ignore the orange spots - I'm doing my best to treat them with a fungicide and an insecticide.

Initially I thought it was pflanzii or maybe castellanosii? I'm not really sure. It seems puffed up a bit unnaturally...I think it might have been overfertilized.

I very much appreciate your help!
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7george
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Re: Please help me ID this Gymnocalycium

Post by 7george »

This can be some G. castellanosii or even G. mostii, but not a pflanzii for sure. Even G. nigriareolatum is possible despite of multiple centrals.
If your cacti mess in your job just forget about the job.
°C = (°F - 32)/1.8
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hiawog
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Location: Houston, TX, USA (humid subtropical)

Re: Please help me ID this Gymnocalycium

Post by hiawog »

7george wrote: Sun Jun 26, 2022 12:32 am This can be some G. castellanosii or even G. mostii, but not a pflanzii for sure. Even G. nigriareolatum is possible despite of multiple centrals.
Thank you! I think most likely castellanosii as well. The ribs/tubercles do not look at all like the pflanziis I have but I wondered if maybe it had just grown unnaturally.
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