Japan Flora: Stems 15-70 cm. long, nearly 4-angled, nearly glabrous; me­dian leaves about 15 cm. long inclusive of the petiole, glabrous, pinnately parted, the segments 2 or 3 pairs, usually linear- lanceolate, acuminate, with incurved coarse teeth, the terminal segments larger, lanceolate, acuminate, Iobulate; involucral bracts 12-14, 1-seriate, foliaceous, 2-3.5 cm. long, rarely to 7 cm. long, linear-lanceolate, pinnately lobulatc, the outer chaff about 8 mm. long; ligulate corollas absent; tubular corollas 4-toothcd; achenes flat, 45-5.5 mm. long, glabrous, retrorsely spinulose on margins, the awns 2, 2.5-3 mm. long. Aug.-Sept. Wet places.

Hokkaido. s. Kuriles, Sakhalin, Korea, Manchuria, and Dahuria. The typical phase occurs from Si­beria to Europe.