Rhodora 70: 483. 1968.
Plants 50–140 (–180) cm. Stems glabrous. Leaves: basal oblanceolate to obovate, mostly 9–50 cm; proximal cauline well developed, gradually reduced distally, clasping, faces not glanddotted. Heads in flat-topped, corymbiform arrays. Peduncles glabrous. Involucres 3.5–5 mm. Phyllaries 5–12 in 1–2 (–3) series, oblanceolate, glanddotted, apices obtuse. Receptacles epaleate or partially paleate (paleae 1–2). Corollas glandular, lobes 0.8–1 mm. Cypselae glandular; pappus bristles in ± 1 series.
Ala., Fla., Ga., La., Miss., N.C., S.C.
Varieties 2 (2 in the flora).
|1||Plants with strong odor of coumarin or vanilla; basal leaves usually more than 15 × 5 cm; midstem leaves broadly elliptic, margins often shallowly dentate, apices flared away from stems; primary head-bearing branches diverging from main axes at 10–20°; florets mostly 7–10||Carphephorus odoratissimus var. odoratissimus|
|1||Plants with slight or no odor of coumarin or vanilla; basal leaves less than 15 × 4 cm; midstem leaves narrowly elliptic, margins entire, apices appressed to stems; primary head-bearing branches diverging from main axes at 30–45°; florets mostly 10–14||Carphephorus odoratissimus var. subtropicanus|
"fine" is not a number.