The most curious and most suggestive instance of such an alternation is the case of the water-persicaria or Polygonum amphibium.
Every bud of the water-persicaria may develop either into an erect or into a floating stem, according as it is surrounded by water or by relatively dry soil.
The two forms of the water-persicaria must remain varieties, though they are only types of the different branches of a single plant.
It is obvious that from the flowers of the floating and erect stems of the water-persicaria seeds will result, each capable of yielding both forms.
Ditches are frequently quite overgrown with the Water Pepper or Biting Persicaria (Polygonum Hydropiper), which is very much like the Spotted Persicaria (p.
They grew plants of mint (Mentha undulata) and of Polygonum Persicaria in solutions of humate of potash, and placed beside the glass containing the plant, another perfectly similar, and containing only the solution of humate of potash.
The mark on the leaf is the impression of the Virgin's finger, and the persicaria is now the only weed that is not useful for something.
The following reply was given in the Browning Society's Papers:--"Surely the Polygonum Persicariaor Spotted Persicaria is the plant referred to.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "persicaria" in a variety of sentences. We hope that you will now be able to make sentences using this word.
