kingdom: Plantae >
subkingdom: Pteridobiotina Britton & Brown >
phylum: Tracheophyta >
class: Magnoliopsida >
order: Saxifragales Bercht. & J. Presl >
family: Crassulaceae J. St.-Hil. >
subfamily: Sempervivoideae Arn. >
genus: Dudleya Britton & Rose >