While all cacti are flowering plants and can flower, many find it easier to bloom than others. There are a few species that are more likely to bloom, and those are in the Mammillaria, Gymnocalycium, and Parodia family.
In this regard, what is a round cactus called?
Likewise, are golden barrel cactus poisonous?
Getting stuck by popular golden barrel cactus can actually hurt more. The cacti have been tested for thorn toxicity, but none exists. Still, the spines come encased in microscopic sheaths that often remain in the flesh after the spine is removed.