Definition of persicaria in English:

persicaria

Pronunciation /ˌpəːsɪˈkɛːrɪə/

noun

  • Originally (more fully "spotted persicaria"): a common Eurasian weed, Persicaria maculosa (formerly Polygonum persicaria), of the family Polygonaceae, which has spikes of small pink flowers and lanceolate leaves often bearing a dark blotch (also called redshank). In later use, usually with distinguishing word: any of the plants constituting the genus Persicaria (commonly treated as a section of the genus Polygonum); specifically the garden plant P. orientalis, a tall annual with dense spikes of rose-pink flowers, native to South-East Asia. Also (in form Persicaria): the genus (or section of the genus Polygonum) containing these plants.

Origin

Late Middle English; earliest use found in Agnus Castus. From post-classical Latin persicaria redshank, Persicaria maculosa from classical Latin persicum peach, from the resemblance of the leaves to those of the peach tree + -āria. Compare post-classical Latin persicarius peach tree.