Japan Flora: Peren­nial herb with short rhizomes, rarely with short stolons; stems erect, 20-50 cm. long, rather slender, few-leaved; radical leaves broadly linear to oblong-lanccolatc, rarely oblong, long- pctiolatc, the blades 3-10 cm. long, 5-30 mm. wide, acute to acuminate, rarely rounded and mucronate, entire or remotely mucronate-toothcd, rarely shallowly incised; cauline leaves rather short, sessile, auriculate<lasping; heads in loose cor­ymbs, about 15 mm. across, yellow or rarely white, usually 5-flowered; involucres 7-9 mm. long, the inner bracts 5-6; achenes 3-3.5 mm. long, beak less than 1 mm. long; pappus brown, about 4 mm. long；May-July. Sunny places in low­ lands and low mountains.

Hokkaido, Honshu, Shikoku, Kyu­shu; very common.s. Kuriles, Ryukyus, and Korea.

var. albiflora (Makino) Nakai. Plant somewhat larger; leaves slightly broader; florets 7-8, the corollas white. Mountains; Hokkaido, Honshu.

f. amplifolia (Kitam.) Hiyama. Corollas yellow; more common than the white-flowered phase. 

var. alpicola (Takeda) Ohwi. Stems low; leaves narrower, shorter; heads fewer, about 1 cm. long, the florets 6-9, yellow; achenes slightly longer. Rocky alpine slopes; Hokkaido, Honshu, Shikoku, Kyushu (Yakushima).

var. kimurana (Kitam.) Ohwi. Alpine phase intermediate between var. alpicola and var. albiflora

f. albescens Kitam. Flowers white. Alpine.

var. stolonifera (Kitam.) Nemoto. Stems creeping; florets 5 in a head. Honshu, Shikoku, Kyushu.