Erythronium dens-canis Linnaeus var. japonicum Baker; E. japonicum f. album C. F. Fang; E. japonicum f. immaculatum P. Y. Fu & Q. S. Sun.

Plants 16--20 cm tall, ca. 1/3 length underground. Bulb 5--6 × ca. 1 cm, basally often with several bulbels. Petiole 3--4 cm; leaf blade elliptic to broadly lanceolate, 10--11 × 2.5--6.5 cm, glabrous, base cuneate, apex obtuse, acute, or mucronate. Flower solitary, long pedunculate. Tepals rose purple, adaxially with a blackish, 3-toothed mottle proximally, lanceolate, 3.5--5 cm × 7--11 mm; inner tepals with 4 small calli near base adaxially and 2 spreading, ovate-semiorbicular auricles laterally. Filaments filiform to subulate, less than 1 mm wide, unequal; anthers suboblong, 5--7 mm. Style slightly thickened distally, longer than stamens; stigma short, 3-lobed. Fl. Apr--May. 2 n = 24.

Moist places in forests. S Jilin, Liaoning [Japan, Korea].