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]
Helianthus × cinereus is a species of sunflower native to the United States, in Missouri, Kentucky, Indiana, and Ohio. 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.