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.
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
Show parent genus | Show parent in key(s)
Heliophily ⓘ: 8
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.
© Alan Cressler: Helianthus laetiflorus (Helianthus Xlaetiflorus), Pine Log, Bartow County, Georgia 1 by Alan Cressler source | Original Image ⭷
© Michael J. Oldham, some rights reserved (CC BY-NC), uploaded by Michael J. Oldham source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Michael J. Oldham, some rights reserved (CC BY-NC), uploaded by Michael J. Oldham source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Michael J. Oldham, some rights reserved (CC BY-NC), uploaded by Michael J. Oldham source CC-BY-NC, permission granted to NCBG | Original Image ⭷Feedback
See something wrong or missing on about Helianthus laetiflorus? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months. If a species is not keyed, that's because keying is ongoing. Please don't send us feedback about unkeyed species.
Horticultural Information
No horticultural data found for this taxon.