Japan Flora: Brown-strigose, much-branched shrub 1-3 m. high; leaves alternate, rather thin, the vernal ones elliptic, or sometimes oblong to broadly ovate, 3-5 cm. long, l-2.5(~3) cm. wide, the summer leaves smaller, narrowly obovate, acute to obtuse at both ends, the petioles 1-4 mm. long; flowers 2-3, brick-red, rarely white or purple, terminal, in umbels, the pedicels 5-20 mm. long; calyx-lobes 5, small, usually elliptic, 2-4 mm. long; corolla infundibuli- form, 3-4 cm. across, 5-lobed; stamens 5, the filaments sparsely granular-pilose on lower half; styles glabrous; capsules conical. Apr.-May. Sunny slopes in hills and mountains;

Hokkaido, Honshu, Shikoku, Kyushu. Very common and variable.