Most native flowers (not just cactus flowers) here are yellow so other colors are most welcome.
From last week here's my Rebutia, a South American cactus.

Rebutia einsteinii
This is a Thelocactus from Mexico, notice it has big tubercles instead of distinct ribs
Thelocactus tulensis.
These cacti are from exotic Oklahoma and Texas.

Echinocereus Reichenbackii
From last week here's my Rebutia, a South American cactus.

Rebutia einsteinii
This is a Thelocactus from Mexico, notice it has big tubercles instead of distinct ribs
Thelocactus tulensis.These cacti are from exotic Oklahoma and Texas.

Echinocereus Reichenbackii
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