ssp_japonica is a perennial herb, 0.5-1.2m in height, inhabiting
sunny, moist/damp, high places in mountainous regions, forming
colonies. Rosettes, with long pedicles, are in the shape of a
lanceolate to long-oblong, with the tips pointed and the bases
abruptly tapering off to both sides of long pedicles, which grow to
become wing-like. On-stem leaves are petiole-less, embrace the stems
at their bases. Stem apexes set cylindrical spikes with many dense
white to light red flowers. Bloom time: July-September.