Children (42 direct children, 59 direct and indirect children):
Pterocaulon sphacelatum
Pterocaulon redolens
Pterocaulon niveum
Pterocaulon polypterum
Pterocaulon polystachyum
(tree size 1)
Pterocaulon pompilianum
Pterocaulon purpurascens
Pterocaulon alopecuroides
(tree size 4)
Pterocaulon pycnostachyum
Dense-spike blackroot
Pterocaulon angustifolium
Pterocaulon balansae
Pterocaulon cordobense
Pterocaulon rugosum
Pterocaulon globuliflorus
Pterocaulon interruptum
(tree size 2)
Pterocaulon serrulatum
(tree size 2)
Pterocaulon lanatum
Pterocaulon sphaeranthoides
Pterocaulon lorentzii
Pterocaulon spicatum
(tree size 1)
Pterocaulon verbascifolium
Pterocaulon virgatum
(tree size 5)
Wand blackroot
Pterocaulon intermedium
Pterocaulon paradoxum
Pterocaulon tricholobum
Pterocaulon xenicum
Pterocaulon billardierei
Pterocaulon brachyanthum
Pterocaulon ciliosum
Pterocaulon discolor
Pterocaulon glandulosum
(tree size 2)
Pterocaulon serratum
Pterocaulon bojeri
Pterocaulon decurrens
Pterocaulon malmeanum
Pterocaulon hassleri
Pterocaulon bakeri
Pterocaulon latifolium
Pterocaulon globuliferus
Pterocaulon paniculatum
Pterocaulon tomentosus
Pterocaulon cylindrostachyum