Mem. Torrey Bot. Club 5: 321. 1894.
Perennials or subshrubs, 30–100 cm. Stems (erect, striate-angled) glabrous, not glaucous. Leaves ascending to spreading-ascending; blades 3-nerved or -5-nerved, lanceolate to narrowly lanceolate, 40–80 × 3–6 (–9) mm, lengths 8–18 times widths, abruptly reduced distally, firm-herbaceous, margins scabrous, apices mostly acute, faces glabrous, little and obscurely gland-dotted (9–29 dots per mm²), sometimes pustulate. Heads glomerate or pedunculate, in compact, usually round-topped arrays 6–35% of plant heights. Involucres obconic, 4–6 mm. Phyllaries yellowish at bases, usually green-tipped, outer narrowly ovate, inner nearly linear, apices rounded to subacute (sometimes slightly resinous). Ray-florets usually 7–14. Disc-florets 3–6; corollas 3.3–4.4 mm. 2n = 18.
Phenology: Flowering Sep–Nov.
Habitat: Moist, sandy soils of open areas, woodlands, and forest openings
Elevation: 0–100 m
Ala., Ark., Fla., Ga., La., Miss., Mo., N.C., Okla., Tenn., Tex.
I have seen no specimens of Euthamia leptocephala from Kentucky; it is to be expected there.
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