Japan Flora: Rhizomes short; leaves rather firm, lat­erally flattened, linear, 2.5-5 cm. long, 2-4 mm. wide, scabrous on margin, acuminate; scapes 6-12 cm. long, with 1-2 short leaves; racemes 1-2 cm. long, oblong to ellipsoidal, densely many-flowered; pedicels arcuate, 2-3 mm. long; flowers nod­ding to pendulous, about 3 mm. long, white to brownish, the subtending bracteole 3-lobed; anthers usually yellowish; cap­sules obovoid-globose, slightly longer than the tepals; styles about 0.5 mm. long.  July-Aug. Alpine slopes and rocky places; Hokkaido, Honshu (n. and centr. distr.). Korea, Sakhalin, Ussuri, Amur, Ochotsk Sea region, and N. America. Very variable.

var. fusca (Miyabe & Kudo) Hara. Tepals and capsules dark brown. Occurs with the typical phase.

var. kondoi (Miyabe & Kudo) Hara. T. \pndoi Miyabe & Kudo; T. yezoensis Miyabe & Kudo Plants slender; leaves 3-10 cm. long, 1-2.5 mm. wide; racemes loosely flowered; flowers white; style about 1 mm. long; cap­sules broadly obovoid. Occurs with the typical phase. Hokkaido.

var. gracilis (Fr. & Sav.) Ohwi. Plants slender; leaves gradually long-acuminate, 3-8 cm. long; scapes 8-20 cm. long; racemes loosely flowered, to 6 cm. long, the pedicels slightly longer; flowers white, the anthers pur­plish; capsules broadly obovoid; style about 0.6 mm. long, slender.  Honshu (n. and centr. distr.).

var. kiusiana (Okuyama) Hara. Differs from var. gracilis in the longer scapes, 20-30 cm. long, the pedicels 4-6 mm. long; flowers 4.5-5 nun. long, the anthers pale; style erect, about 1 mm. long, slender. Kyu­shu (Mount Dogatake in Hynga Prov.)