Children (8 direct children, 8 direct and indirect children):
Cordylanthus rigidus subsp. brevibracteatus
Cordylanthus rigidus subsp. littoralis
Seaside bird's-beak
Cordylanthus rigidus subsp. rigidus
Cordylanthus rigidus subsp. setiger
Cordylanthus rigidus subsp. setigerus
Cordylanthus rigidus involutus
Cordylanthus rigidus var. compactus
Cordylanthus rigidus var. ferrisianus