Children (34 direct children, 34 direct and indirect children):
Gibbaeum pubescens
Gibbaeum shandii
Gibbaeum heathii
Gibbaeum nuciforme
Gibbaeum petrense
Gibbaeum esterhuyseniae
Gibbaeum gibbosum
Gibbaeum geminum
Gibbaeum hortenseae
Gibbaeum schwantesii
Gibbaeum luckhoffii
Gibbaeum angulipes
Gibbaeum velutinum
Gibbaeum helmiae
Gibbaeum pachypodium
Gibbaeum blackburnii
Gibbaeum comptonii
Gibbaeum nebrownii
Gibbaeum album
Gibbaeum dispar
Gibbaeum pilosulum
Gibbaeum haaglenii
Gibbaeum perviride
Gibbaeum blackburniae
Gibbaeum hartmannianum
Gibbaeum johnstonii
Gibbaeum luteoviride
Gibbaeum marlothii
Gibbaeum molle
Gibbaeum muirii
Gibbaeum sect. gibbaeum
Gibbaeum sect. mentocalyx
Gibbaeum ihlenfeldtii
Gibbaeum haagei