Helianthus nuttallii
| Helianthus nuttallii | |
|---|---|
| |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Helianthus |
| Species: | H. nuttallii
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| Binomial name | |
| Helianthus nuttallii | |
| Synonyms[2] | |
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Helianthus nuttallii, or Nuttall's sunflower, is a species of sunflower native to northern, central, and western North America, from Newfoundland west to British Columbia, south to Missouri, New Mexico, and California.[3]
Helianthus nuttallii is a
Subspecies of Helianthus nuttallii include:[2][3][4]
- Helianthus nuttallii subsp. nuttallii - Canada, western United States.[citation needed] H. nuttallii subsp. nuttallii is considered by some to be a synonym for H. nuttallii.[6] However, others argue that it is distinct from the species.[7]
- extinct since 1937.[8]
- Helianthus nuttallii subsp. rydbergii (Britton) R. Long. - Central Canada, interior northwestern United States
References
- . Retrieved 20 November 2021.
- ^ a b "Helianthus nuttallii". The Global Compositae Checklist (GCC) – via The Plant List. Note that this website has been superseded by World Flora Online
- ^ a b "Helianthus nuttallii". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 19 January 2018.
- ^ a b Jepson Flora: Helianthus nuttallii
- ^ Plants of British Columbia: Helianthus nuttallii
- ^ "Helianthus nuttallii". The Global Compositae Checklist (GCC) – via The Plant List. Note that this website has been superseded by World Flora Online
- ISBN 9780520253124. pp 344
- ^ Calflora taxon report, University of California, Helianthus nuttallii Torrey & A. Gray ssp. parishii (A. Gray) Heiser, Los Angeles sunflower, Parish's sunflower
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