Children (7 direct children, 7 direct and indirect children):
Pellaea glabella subsp. glabella
Smooth cliffbrake
Pellaea glabella subsp. missouriensis
Missouri cliffbrake
Pellaea glabella subsp. occidentalis
Western dwarf cliffbrake
Pellaea glabella subsp. simplex
Smooth cliffbrake
Pellaea glabella var. missouriensis
Pellaea glabella var. simplex
Pellaea glabella var. occidentalis