Northern Ontario Plant Database
Synonymy
Synonymy - Helianthus nuttallii and subspecies
Asteraceae Daisy Family
Helianthus nuttallii Torr. & A.Gray
Nuttall's sunflower, cordilleran sunflower
; Fr: hélianthe de Nuttall
Helianthus nuttallii subsp. nuttallii Torr. & A.Gray
Nuttall's sunflower, cordilleran sunflower
; Fr: hélianthe de Nuttall
- [=Helianthus nuttallii Torr. & A.Gray subsp. canadensis R.W.Long]
Helianthus nuttallii subsp. rydbergii (Britton) R.W. Long
Rydberg's sunflower
; Fr: hélianthe de Rydberg
- [=Helianthus nuttallii Torr. & A.Gray var. rydbergii (Britton) B.Boivin]
- [=Helianthus rydbergii Britton - basionym]
- [=Helianthus subtuberosus (Britton) Britton var. rydbergii (Britton) B.Boivin]