Source: Lady Bird Johnson Wildflower Center (NPIN) ↗NC State has no page for Helianthus floridanus (seed URL helianthus-floridanus/ returns 404). Real, species-specific data taken from the Lady Bird Johnson Wildflower Center Native Plant Database (NPIN), id_plant=HEFL2, https://www.wildflower.org/plants/result.php?id_plant=HEFL2 . All attribute values above are verbatim LBJ fields. LBJ's profile is sparse (no wildlife/host or detailed cultural sections). Closely related NC State-scraped congeners for reference: Swamp Sunflower Helianthus angustifolius (Grove ID 60) and Woodland Sunflower H. divaricatus (ID 61) — not merged in, to avoid attributing another species' values to H. floridanus.
Curated pairwise relationships between this plant and others in the library — who feeds
whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.
No curated interactions recorded for this species yet.
Full plant profile
Growing Conditions
Life cycle
Perennial
Mature size
Up to about 6 feet tall.
Canopy layer
4 - Herbaceous (3-15 ft)
Form & Appearance
Habit / form
Herb
Flower color
Red; Yellow
Bloom time
Aug, Sep, Oct, Nov
Fruit detail
Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.