Children (16 direct children, 20 direct and indirect children):
Psoralidium lanceolatum
(tree size 2)
Lemon scurfpea
Psoralidium collinum
Psoralidium junceum
Rush lemonweed
Psoralidium tenuiflorum
Slimflower scurfpea
Psoralidium argophyllum
Psoralidium batesii
Psoralidium youngiae
Psoralidium micranthum
Psoralidium linearifolium
(tree size 2)
Psoralidium obtusilobum
Psoralidium digitatum
Psoralidium floribundum
Psoralidium bigelovii
Psoralidium purshii
Psoralidium stenophyllum
Psoralidium stenostachys