1. Plantae
  2. Tracheophyta
  3. Magnoliopsida
  4. Saxifragales
  5. Crassulaceae
  6. Crassula

Crassula 'Tom Thumb'

A hybrid between c. rupestris subsp. marnieriana and, probably, c. rupestris subsp. rupestris.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     [Saxifraganae]
order      Saxifragales
family       Crassulaceae
genus        Crassula L.