Two Types of Fishhook Cactus Flowers

Mammillaria sheldonii

Mammillaria yaquensis

Both of these cacti have open flowers today. On top, open in the back patio area, is a local native mammillaria sheldonii fishhook cactus we rescued from a construction area down the road a year or two ago. Below, open in the courtyard out front is a mammillaria yaquensis fishhook cactus that was a gift from our friend Crotalus.

Click on either image to enlarge.

Update: Crotalus advises us that the top panel specimen might actually be mammillaria tetrancistra. The one we quoted above typically is found only in Mexico.


  1. Crotalus said,

    July 18, 2017 @ 09:07:03

    Hmmm… I’m thinking that the top is actually M. tetrancistra. I thought that M. sheldonii was strictly Mexican. It isn’t M. grahamii, though, as the stigma is white, not green.

    Glad to see the M. yaquensis is doing so well for you!

    I’ve got reservations in Ft. Collins, so I can make a run for the path on 8/21!

  2. CapnBob said,

    July 18, 2017 @ 13:57:33

    I made an update to Damsel’s text to indicate the proper species. I told her the wrong one - my fault and Wikipedia’s. :lol:

    Glendo, Wyoming is on the centerline and is just a couple of hours north on I-25 from Ft. Collins. Good luck!

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