polygonum_orientale
1. [ noun ] (botany) annual with broadly ovate leaves and slender drooping spikes of crimson flowers; southeastern Asia and Australia; naturalized in North America
Synonyms: princess_feather kiss-me-over-the-garden-gate prince's-plume prince's-feather
Related terms: subshrub Polygonum
Similar spelling:   Polygonum_aubertii
  Polygonatum_biflorum