Nymphoides coreana is a perennial herb found in ponds,
marshes, or paddies, emerging long, slender 'stems' from rhizomes in
a petiole way—blades positioned on their tips. Leaves (the edges)
are concentric or concentric-ovate, 2-6cm in length, 2-4cm in width,
and many have purplish-brown mottled patterns on their surfaces.
There are nodes on the 'stems' at somewhat upper parts from the
midpoints, from which flower buds or new vegetative growths (leaves
with 'stems,' the same thing mentioned above) start—the latest
developments root in due course. Flowers, white, 4- or 5-petaled,
8mm in diameter, have thick white hairs on the margins and a few
insides. Fruit is oblong and has many seeds inside, germinating
approximately in May. As for the 'stem,' a lower portion from the
node may be a genuine stem, and the upper a petiole. Be that as it
may, the 'stems' also exist without nodes. How can it be explained?
Who knows at the moment? Bloom time: July-October. |