herbaceous, tall, much-branched, scaberulous, the young parts cobwebby or woolly; leaves eared at base, petiolate, irregularly pinnate- or bipinnati-lobed, scabrous above, woolly beneath, the lobes horizontally spreading, few, distant, unequal, sharply toothed, the larger lobulate; corymbs compound, terminal; pedicels scaly; inv. campanulate, 8–10-leaved, glabrous; ray-fl. 3–5; disc-fl. 20–25; achenes flattened, pubescent, ciliolate. 2–3 feet high, much branched, canous, becoming glabrate, but always scabro-hispid. Leaves 1–2 inches long, the lobes and lobules 1 line wide. Corymbs many-headed, rather dense.—Differs from C. oxyodonta by its larger fl.-heads, &c.; it seems also to be exclusively an Eastern plant.
