Children (22 direct children, 35 direct and indirect children):
Opatrum sabulosum
(tree size 4)
Opatrum riparium
Opatrum emarginatum
Opatrum alternatum
Opatrum asperidorsum
Opatrum baeticum
Opatrum cypraeum
Opatrum dahli
Opatrum distinctum
Opatrum geminatum
Opatrum grenieri
Opatrum italicum
Opatrum nivale
Opatrum obesum
Opatrum perlatum
Opatrum sculpturatum
(tree size 5)
Opatrum tangerianum
Opatrum triste
Opatrum validum
(tree size 4)
Opatrum verrucosum
Opatrum laevigatus
Opatrum micans