Puzzled

If you have a cactus plant and need help identifying it, this is the place to post it.
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GermanStar
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Puzzled

Post by GermanStar »

We found these cacti in extreme southern Arizona. On the right is Coryphantha recurvata. What is that on the left?

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Agave
"American aloe plant," 1797, from Greek Agaue, proper name in mythology (mother of Pentheus), from agauos "noble," perhaps from agasthai "wonder at".
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GermanStar
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Re: Puzzled

Post by GermanStar »

And a close-up...
Coryphantha 052.JPG
Coryphantha 052.JPG (143.69 KiB) Viewed 1276 times
Agave
"American aloe plant," 1797, from Greek Agaue, proper name in mythology (mother of Pentheus), from agauos "noble," perhaps from agasthai "wonder at".
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vlani
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Re: Puzzled

Post by vlani »

Mammillaria heyderi.
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GermanStar
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Re: Puzzled

Post by GermanStar »

Thanks much. That was my original thought, when we first discovered them growing with the Coryphantha. Then we later discovered these (pictured), which are clearly M. heyderi ssp. macdougalii. Tubercles and spines look about the same, but other than that, these plants just seem worlds apart. I never imagined a Mamm could be so variable.

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Agave
"American aloe plant," 1797, from Greek Agaue, proper name in mythology (mother of Pentheus), from agauos "noble," perhaps from agasthai "wonder at".
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