Canadensys Canadensys

Helianthus rydbergii Britton

Helianthus rydbergii Britton is a synonym sensu FNA Ed. Comm., 2006c of:

Helianthus nuttallii subsp. rydbergii (Britton) R.W. Long, an accepted subspecies name sensu FNA Ed. Comm., 2006c.