the Fishhook Cactus and Astrophytum Ornatum. To those, Shane adds, ‘species such as Mammillaria, Gymnocalycium and Parodia ...
Star Cactus (Astrophytum asterias): "Its small size and low water requirements make it ideal for desktops or windowsills," he notes. Plus the star-like cacti spiral is quite the pretty prickly.