Japan Flora: Stout glabrous perennial; stems 50-100 cm. long, pale green, hollow; leaves loosely whorled on lower half of the stem, long-petioled, ob­long-ovate to broadly ovate, cordate, 7-10 cm. long, 7-15 cm. wide, abruptly acuminate, the upper surface lustrous, pale to vivid green, the veins often variegated, the upper leaves bract­like; racemes simple, 3-7 cm. long, few-flowered, the bracts narrowly lanceolate, deciduous; flowers horizontal, greenish white, tubular-infundibuliform, 7-10 cm. long, the pedicels very short, the tepals narrowly oblanceolate.       July-Aug. Moist woods in lowlands to foothills.

Honshu (Kanto Distr. and westw.), Shikoku, Kyushu.

var. glehnii (F. Schmidt) Woodc. Plants stouter; leaves broadly ovate; flowers often up to 20, on a rather long rachis, 10-15 cm. long.          Honshu (n. and centr. distr.), Hok­kaido. Sakhalin and s. Kuriles.