I don't know anything about cactus, spotted this in front of a store, it was just beautiful with the reddish buds and cheerful yellow blooms! Would love to add them to the database if someone can provide a genus.

It looks like a Prickly Pear or something related to me.

It does look like a prickly pear - it would be good if you stood back and took a photo of more plant.

You can already see the little "pears" forming, and those brighter than bright yellow blooms I feel are pretty characteristic.

It sure is gorgeous but I don't know a thing about Cacti ... I agree, it does resemble Opuntia. I wonder if @Baja_Costero, who is familiar with a lot of cacti would recognize it?

It looks like Opuntia but there are a few lookalike genera that are outside my wheelhouse.

Thanks all, it does look like Opuntia but if Baja says there may be lookalike, I'll refrain from adding them to the database.
Next time I go to that thrift store, I take more pictures.

Check out this recent thread where a Nopalea was discussed.

The thread "Help ID spineless variegated prickly pear!" in Cactus and Succulents forum

Ahhh, yes, adding to the confusion for those not familiar with any of these!

Yeah, why would they be, really? Although in all fairness you will not find many Mexicans who are not familiar with the supermarket vegetable form of the prickly pear, and its delicious but seedy fruit, at the least. A prickly pear is after all featured prominently on the national flag.

Fun trivia factoid: the genus name Nopalea is related to the Mexican Spanish word for the prickly pear and its edible stems, nopal.

But the naming of prickly pears is so not my thing. I consider it a victory to recognize our native species and the one in the supermarket.

Some more genus names for prickly pears which were formerly Opuntias.

Brasiliopuntia, Consolea, Miqueliopuntia, Nopalea, Opuntia, Tacinga, Tanilla

This is just me copying and pasting, not displaying any knowledge I will likely retain. And don't quote me on any of it.

Opuntia and all their relatives are very confusting and often difficult to ID for a couple reasons:

1. They are very promiscuous and hybridize freely

2. Every area has their own version of the same plant because of the variability within species (and freely hybridizing). For instance, Google Opuntia polyacantha, our Western native.