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Helianthus × cinereus

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Helianthus × cinereus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Helianthus
Species:
H. × cinereus
Binomial name
Helianthus × cinereus
Torr. & A.Gray[1]

Helianthus × cinereus is a species of sunflower native to the United States, in Missouri, Kentucky, Indiana, and Ohio.[2] H. cinereus was proposed as a new species by Torrey and Gray in 1842. It is a natural hybrid with similar features to artificial hybrids between Helianthus mollis and Helianthus occidentalis.[2][3]

References

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  1. ^ Helianthus cinereus The Plant List. Accessed 22 February 2019.
  2. ^ a b Helianthus ×cinereus Torr. & A. Gray (pro sp.) (mollis × occidentalis). USDA - Natural Resources Conservation Service. Accessed 22 February 2019
  3. ^ R. C. Jackson and A. T. Guard Natural and Artificial Hybridization Between Helianthus mollis and H. occidentalis The American Midland Naturalist Vol. 58, No. 2 (Oct., 1957), pp. 422-433 (12 pages). Accessed 22 February 2019