Children (11 direct children, 11 direct and indirect children):
Asclepias tuberosa subsp. interior
Butterflyweed
Rolfs' milkweed
Asclepias tuberosa tuberosa
Asclepias tuberosa subsp. terminalis
Asclepias tuberosa var. flexuosa
Asclepias tuberosa var. cordata
Asclepias tuberosa var. rolfsii
Asclepias tuberosa f. bicolor
Asclepias tuberosa f. decumbens
Asclepias tuberosa f. flavescens
Asclepias tuberosa f. lutea