Sorry Tim.
To compare
Mammillaria macdougalii Pima County, east of Tucson. The yellowish flowers are typical for this species.
More details thereof are at my website.

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- 115_Mammillaria_macdougalii.JPG (226.2 KiB) Viewed 256 times
Tim's "hybrid" have also some similarity to
Mammillaria roseoalba. It have also a taproot.

- 98_Mammillaria_roseoalba_SB285.JPG (180.46 KiB) Viewed 256 times
Only when the last tree has died, the last river has been poisoned and the last fish has been caught will we realize that we cannot eat money.
(Wisdom of the Cree Indians)
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