Sekkaniwazekishou is the
Japanese name for a Sisyrinchium species, originating
probably in North America, which no one has yet to identify
officially. It grows wild in sunny grasslands or lawns in various
districts. Perianth lobes, white, are tapering to sharp points, with
yellow coalescent bases and single stripes in the centers. Stamens,
three in number, do not protrude out of corolla tubes. Fruit is
3.5-4mm long and close to spherical. Bloom time: May-July.