Two Opuntia and one Mammillaria

If you have a cactus plant and need help identifying it, this is the place to post it.
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dmcac
Posts: 58
Joined: Sun Mar 19, 2023 5:40 pm

Two Opuntia and one Mammillaria

Post by dmcac »

Hello! I would like to verify the identity of the following cacti that I bought without any identifications. Thank very much in advance! DM
Here are my guesses:
1. Opuntia decumbens
2. Opuntia monocantha
3. It looks like Mammillaria sempervivi but I am not sure
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Opuntia 1sm.jpg
Opuntia 1sm.jpg (140.57 KiB) Viewed 520 times
Opuntia 2sm.jpg
Opuntia 2sm.jpg (164.72 KiB) Viewed 520 times
Mammillaria 5sm.jpg
Mammillaria 5sm.jpg (184.16 KiB) Viewed 520 times
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anttisepp
Posts: 1348
Joined: Sat Jul 10, 2010 12:00 pm
Location: Suomi - Finland

Re: Two Opuntia and one Mammillaria

Post by anttisepp »

3 M karwinskiana/nejapensis
dmcac
Posts: 58
Joined: Sun Mar 19, 2023 5:40 pm

Re: Two Opuntia and one Mammillaria

Post by dmcac »

Thank you very much! I have Mammillaria that was sold as M. nejapensis and it looks somewhat different. Could you please check it on the photo below. Are they that variable or this is a different species? Thanks ahead, DM
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Mammillaria 6sm.jpg
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anttisepp
Posts: 1348
Joined: Sat Jul 10, 2010 12:00 pm
Location: Suomi - Finland

Re: Two Opuntia and one Mammillaria

Post by anttisepp »

M pringlei 👍
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greenknight
Posts: 4813
Joined: Tue Apr 30, 2013 4:18 am
Location: SW Washington State zone 8b

Re: Two Opuntia and one Mammillaria

Post by greenknight »

Agreed, that last one is M. pringlei - or, as the lumpers would have it, M. rhodantha ssp. pringlei: http://www.llifle.com/Encyclopedia/CACT ... ._pringlei

It's a very distinctive and very popular cactus, I can't understand how they misidentified it.
Spence :mrgreen:
dmcac
Posts: 58
Joined: Sun Mar 19, 2023 5:40 pm

Re: Two Opuntia and one Mammillaria

Post by dmcac »

Many thanks for your identifications! Will have to double check everything I bought here at a local store.
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