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Helianthus mollis

Helianthus mollis

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Campanulids
Ordo: Asterales

Familia: Asteraceae
Subfamilia: Asteroideae
Tribus: Heliantheae
Subtribus: Helianthinae
Genus: Helianthus
Species: Helianthus mollis

Helianthus mollis Lam., in J. Lamarck et al., Encycl. 3: 85. 1789.

Helianthus canescens Michx.
Helianthus mollis var. cordatus S.Watson
Helianthus pubescens Vahl


Helianthus mollis Willd.= Helianthus strumosus L.

Native distribution areas:

Continental: Northern America
Canada (Ontario), USA (Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, Missouri, Nebraska, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Virginia, West Virginia, Wisconsin)

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

Lam, Encyclopédie Méthodique, Botanique 3(1): 85. 1789.


International Plant Names Index. 2018. Helianthus mollis. Published online. Accessed: Feb. 08 2018.
The Plant List 2013. Helianthus mollis in The Plant List Version 1.1. Published online. Accessed: 2018 Feb. 08. 2018. Helianthus mollis. Missouri Botanical Garden. Published online. Accessed: 08 Feb. 2018.
Hassler, M. 2018. Helianthus mollis. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2018. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2018 Feb. 08. Reference page.
efloras Flora of North America [1].
USDA, ARS, Germplasm Resources Information Network. Helianthus mollis in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 07-Oct-06.

Vernacular names
svenska: Dunsolros

Helianthus mollis is a species of sunflower known by the common names ashy sunflower, hairy sunflower or downy sunflower.[2] It is widespread across much of the United States and Canada, primarily the Great Lakes region from Ontario south to Texas and Alabama. Additional populations are found in the states of the Atlantic Coast from Maine to Georgia, but these appear to be introduced.[3]

Helianthus mollis grows on prairies, roadsides, dry open woods, rocky glades, fields, and thickets.[2] It is a perennial herbaceous plant up to 1.5 m (4.9 ft) tall, spreading by means of underground rhizomes. The leaves are mostly along the stem rather than crowded near the base, each egg-shaped with teeth along the edges. One plant produces 1-15 flower heads containing 17-22 yellow ray florets surrounding 75 or more yellow disc florets.[4] Flowers bloom from July to September. The Latin specific epithet mollis means soft and is in reference to the downy plant hairs.[2]

The International Plant Names Index
"Helianthus mollis - Plant Finder".
Biota of North America Program 2014 county distribution maps
Flora of North America, Helianthus mollis Lam., 1789. Ashy sunflower

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