Verbesina alternifolia

Plants (30–) 100–200+ cm (perennating bases ± erect or horizontal rhizomes, internodes winged, at least proximal). Leaves all or mostly alternate (proximal sometimes opposite); blades lance-elliptic or lanceolate to lance-linear, 10–25+ × 2–8+ cm, bases narrowly cuneate, margins coarsely toothed to subentire, apices attenuate, faces scabrellous. Heads (3–) 8–25 (–50+) in corymbiform to paniculiform arrays. Involucres ± saucerlike, 10–12+ mm diam. Phyllaries 8–12+ in 1 (–2) series, ± spreading to reflexed, spatulate or lance-linear to linear, 3–8+ mm. Ray-florets (2–) 6–8+; laminae 15–25+ mm. Disc-florets 40–60+; corollas yellow. Cypselae dark-brown to black, oblanceolate to ± orbiculate, 4.5–5 mm, faces sparsely hirtellous to glabrate; pappi 1.5–2 mm. 2n = 68.

Phenology: Flowering Aug–Oct.
Habitat: Alluvial flats, along streams, woodlands
Elevation: 10–600 m

Ont., Ala., Ark., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Mich., Miss., Mo., Nebr., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Va., W.Va., Wis.

Discussion

Verbesina alternifolia may be no longer present in Delaware.

Selected References

None.

Lower Taxa