Helenium drummondii

H. Rock

Rhodora 59: 173. 1957.

Common names: Fringed sneezeweed
Basionym: Leptopoda fimbriatum Torrey & A. Gray Fl. N. Amer. 2: 387. 1842,
Treatment appears in FNA Volume 21. Treatment on page 429. Mentioned on page 427.

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.

Phenology: Flowering (Mar–)Apr(–May).
Habitat: Ditches, other moist areas such as wet woods, bogs, and swamp edges
Elevation: 10–50 m


Selected References


Lower Taxa