Children (23 direct children, 25 direct and indirect children):
Spirochaeta americana
Spirochaeta thermophila
Spirochaeta africana
Spirochaeta alkalica
Spirochaeta asiatica
Spirochaeta aurantia
(tree size 2)
Spirochaeta bajacaliforniensis
Spirochaeta cellobiosiphila
Spirochaeta dissipatitropha
Spirochaeta halophila
Spirochaeta isovalerica
Spirochaeta litoralis
Spirochaeta psychrophila
Spirochaeta sinaica
Spirochaeta smaragdinae
Spirochaeta caldarium
Spirochaeta lutea
Spirochaeta odontotermitis
Spirochaeta perfilievii
Spirochaeta plicatilis
Spirochaeta sphaeroplastigenens
Spirochaeta stenostreptum
Spirochaeta zuelzerae