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Caulescent annual or biennial 2–10 dm, commonly minutely hirtellous-puberulent under the heads, otherwise generally glabrous or nearly so; lvs entire to pinnatisect, the basal sometimes much the largest and persistent, to 25 × 6 cm, sometimes deciduous and scarcely larger than the well developed cauline ones; heads several or occasionally solitary; invol 1–2 cm at anthesis; body of the achene 4–5 mm, the filiform, subapically very fragile beak longer, often twice as long; 2n=12. Fields, dry woods, bottomlands, and waste places; Del. and Md. to Ill. and Kans., s. to Fla. and Tex. June–Sept. (Sitilias c.)
A herb.
