- Helianthus nuttallii Torr. & A. Gray ssp. rydbergii (Britton) R.W. Long
- Symbol HENURCommon Name Rydberg's sunflowerBotanical Family Asteraceae
Scientific plant list. 2013.
Helianthus nuttallii Torr. & A. Gray ssp. rydbergii (Britton) R.W. Long
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Helianthus nuttallii Torr. & A. Gray ssp. rydbergii (Britton) R.W. Long — Symbol HENUR Common Name Rydberg s sunflower Botanical Family Asteraceae … Scientific plant list
