Japan Flora: Annual or biennial, with short spreading pubescence; leaves radical, 10-30, spreading, subrounded or sometimes ovate-rounded, 5-15 mm. in diameter, flat, deltoid-toothed, truncate and abruptly petiolate, the petioles 1-2 cm. long; scapes 1-25, 5-10 cm. long, the bracts ovate to lanceolate, 4-7 mm. long, the pedicels 4-10, spreading, slender, 2-3.5 cm. long; calyx accrescent after anthesis, spreading, 5-parted nearly to the base, the lobes green, ovate, 2-3 mm. long in anthesis, 4-5 mm. long in fruit, acute; corolla white, 4-5 mm. across, 5-lobed; capsules ovoid-globose, about 4 mm. in diameter, 5-valved, the valves white, membranous. Mar.-Apr. Lowlands.
Honshu (Chiigoku Distr.), Shikoku, Kyushu. Korea, Formosa, and se. Asia.