Polygonum polyneuron, an
80cm-in-height annual herb, occurs at seashores, the stems
well-branching at the bases. Leaves, 0.5-3cm in length, are
long-oblong or oblanceolate, taking on a dark brown tinge. Leaf
axils make two or three flowers in the way of a bundle; the
perianths, each 1.5-3mm in length, are cleft in five and green, and
the margins with white to light red turn red after flower. Boom
time: September-October.
Wild plants in and around Shimane
島根とその周辺の野生植物
