glabrous sarcandra herb (Sarcandra glabra)

千両 only

very large sum (of money); very high value

千両 only; Historical term

1000 ryō

knotweed (Polygonaceae); jointweed; smartweed

water pepper (Persicaria hydropiper)

silver vine (Actinidia polygama); cat powder

Proverb

some prefer nettles; there's no accounting for taste; every man to his taste

Polygonaceae (knotweed or smartweed family of plants)

dyer's knotweed (Persicaria tinctoria, used to produce indigo dye)

Food, cooking

water pepper vinegar; vinegar infused and mixed with water pepper leaves, esp. served with salt-grilled sweetfish

water pepper (Persicaria hydropiper)

water pepper (Persicaria hydropiper f. purpurascens)