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Asteraceae
Helianthus

not marked as a favorite taxon Helianthus laetiflorus Persoon. Phenology: Late Jul-Sep. Habitat: Fields, woodland edges, disturbed areas; introduced from farther west. Distribution: Widely scattered in e. and c. North America. Perhaps a naturally hybrid-derived species in the Midwest, and introduced eastwards.

Glossary (beta!)

Origin/Endemic status: Native

Taxonomy Comments: Helianthus laetiflorus is believed to be a derivative of the hybrid of H. pauciflorus Nuttall ssp. subrhomboideus (Rydberg) O. Spring & E. Schilling and H. tuberosus.

Synonymy ⓘ: = G, Pa, RAB, S, SE1, Va, WV; = Helianthus ×laetiflorus Pers. (pro sp.) — C, FNA21, GrPl, Il, K4, Mi, NE, Oh3, Tn; = Helianthus laetiflorus Pers. var. laetiflorus — F; = n/a — NY, Tat; ~ Helianthus scaberrimus Elliott. Basionym: Helianthus laetiflorus Pers. 1807

Links to other floras: = Helianthus ×laetiflorus - FNA21

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Heliophily ⓘ: 8

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image #1 of Helianthus laetiflorus© Alan Cressler: Helianthus laetiflorus (Helianthus Xlaetiflorus), Pine Log, Bartow County, Georgia 1 by Alan Cressler source | Original Image ⭷
image #2 of Helianthus laetiflorus© Michael J. Oldham, some rights reserved (CC BY-NC), uploaded by Michael J. Oldham source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #3 of Helianthus laetiflorus© Michael J. Oldham, some rights reserved (CC BY-NC), uploaded by Michael J. Oldham source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #4 of Helianthus laetiflorus© Michael J. Oldham, some rights reserved (CC BY-NC), uploaded by Michael J. Oldham source CC-BY-NC, permission granted to NCBG | Original Image ⭷

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Horticultural Information

No horticultural data found for this taxon.