Help, what cactus is this?

[condb]

Hi, I purchased a small cactus a week back. Could anyone please tell me what species it is? Any advice on taking care of it would be appreciated too. Thanks so much!

[teo]

Parodia chrysacanthion (or maybe P. graessneri)

[DaveW]

Parodia (Notocactus) graessneri or Parodia (Notocactus) haselbergii ssp. graessneri if you are a "lumper" from the typical greenish yellow flower bud:-

http://www.bcss.org.uk/pom032013.php" onclick="window.open(this.href);return false;

[condb]

You guys are amazing. Thanks!

[Robb]

It is pretty easy to look after, just avoid colder temperatures over winter as it is less cold hardy than some species.