Japan Flora: Stipes 7-20 cm. long; sterile blade broadly linear to oblong or navicular, 1*3 (-5) cm. long, 0.3-1 cm. wide, obtuse to acute at apex, narrowly cuneate at base, sessile or indistinctly short-petiolate; venation fine, with small oblong areoles and a few secondary free veinlets.------------ Apr.-Dec. Wet sandy sea­shores.

Hokkaido, Honshu, Shikoku, Kyushu. Formosa and Kamchatka.

var. nipponicum (Miyabe & Kudo) Nishida. Sterile blade thinner, usually oblong, sometimes elliptic, more often lanceolate, 2.5-6 cm. long, 1-2 cm. wide, distinctly short-petiolate. Sunny ground in inland areas; Hokkaido, Hon­shu, Shikoku, Kyushu. Korea and China.