$modus 0:
$modus 1:
Crassula drummondii
Crassula drummondii (Torrey & A. Gray) Fedde [Accepted]
Crassulaceae
Crassula drummondii (Torrey & A. Gray) Fedde
Kew Bull., vol. 39 : p. 717, fig. 4F-K (1984) [M. Bywater]