Helenium drummondii H. Rock

Perennials, 20–60 cm. Stems usually 1, usually unbranched distally, moderately to strongly winged, glabrous proximally, glabrous or sparsely hairy distally. Leaves glabrous; basal blades narrowly obovate to narrowly oblanceolate, usually entire, sometimes undulate-serrate; proximal and mid blades narrowly lanceolate, usually entire, sometimes undulate-serrate; distal blades lance-linear, usually entire, rarely undulate-serrate. Heads 1(–3) per plant, usually borne singly. Peduncles 10–30 cm, sparsely hairy. Involucres hemispheric to globoid, 10–18 × 15–25 mm. Phyllaries sparsely to moderately hairy. Ray florets 13–30, neuter; corollas yellow, 14–25 × 4–10 mm. Disc florets 250–650(–1000+); corollas yellow, 4.3–5.4 mm, lobes 5. Cypselae 1.2–1.5 mm, moderately hairy; pappi of 5–12 deeply lacerate, non-aristate scales 2–3.7 mm. 2n = 32.

Leptopoda fimbriatum Torrey & A. Gray, Fl. N. Amer. 2: 387. 1842, not (Michaux) Eaton 1829

Helenium drummondii is a species of perennial plant in the Sunflower Family, commonly known as fringed sneezeweed. It is native to the south- central United States, in eastern Texas, Arkansas, and Louisiana.

Helenium drummondii is an perennial herb up to 60 cm (2 feet) tall. Leaves are long, thin, and grass-like. One plant can usually produce only 1-3 flower heads. The head is spherical or hemispherical, with sometimes as many as 1000 yellow disc florets, plus 13-30 yellow ray florets. The species grows in bogs, swamps, and other wet places.

Helenium drummondii là một loài thực vật có hoa trong họ Cúc. Loài này được H.Rock mô tả khoa học đầu tiên năm 1957.