Children (29 direct children, 37 direct and indirect children):
Olsynium filifolium
Olsynium acaule
Olsynium douglasii
(tree size 2)
Douglas' grasswidow
Olsynium bodenbenderi
Olsynium chrysochromum
Olsynium junceum
(tree size 2)
Olsynium lyckholmii
Olsynium nigricans
Olsynium obscurum
Olsynium philippii
(tree size 1)
Olsynium porphyreum
Olsynium scirpoideum
(tree size 3)
Olsynium trinerve
Olsynium biflorum
Olsynium stoloniferum
Olsynium villosum
Olsynium andinum
Olsynium inflatum
Olsynium frigidum
Olsynium skottsbergii
Olsynium subg. chamelum
Olsynium subg. ona
Olsynium colchaguensis
Olsynium illapelinum
Olsynium lainezii
Olsynium luridum
Olsynium midletonii
Olsynium scirpiforme
Olsynium argentinense