Japan Flora: Stemless annual 5-15 cm. high; leaves linear, gradually long-acuminate, yellowish green, 3- to 5-nerved; peduncles slender, longer than the leaves, 4-ribbed; heads turbinate, white to pale green, 3-4 mm. long, about 10-flowered; involucral bracts ovate-lanceolate, longer than the disc flowers; floral bracts white. Wet places in lowlands and mountains.

Honshu, Shikoku, Kyushu. China 

var. nipponicum (Maxim.) Nakai Larger than the typical va­riety; peduncles to 30 cm. tall; heads to 5 mm. long; floral bracts, sepals and petals densely white-bearded. Wet places in lowlands; Hokkaido, Honshu, Shikoku, Kyushu; quite common. Korea and China.