Leaves usually only 1, relatively short, 10-20 cm. Scape 10-30 cm, smooth or slighty scabrous. Flowers: perianth dull yellow, sometimes with darker midvein color extending into abaxial portion of perianth, tube 5-7 mm, ca. 1/2 length of lobes, lobes spreading, 9-12 mm; short filaments 2-4 mm, long filaments 3-5 mm, apical appendages short, straight or incurved; anthers cream or yellow; pedicel 1-4 cm. 2n = 14, 16.

Flowering spring. Coniferous forests, in clay and granite soils; 600--2000 m; Calif., Oreg.